Spot-weld

Fatigue

Computational analysis

Mesh less

Structural

Elasticity

Neural Network

Thin walled structural Mechanics

Automobile design, structure and materials

Material Mechanics, Material Mechanics

Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Machine materials and mechanics, Machine Material/Material Mechanics

Apr. 2001 - Present
Professor College of Science & Technology Nihon University

Apr. 1996 - Mar. 2001
Associate Professor College of Science & Technology Nihon University

Apr. 1991 - Mar. 1996
Lecturer College of Science & Technology Nihon University

Apr. 1986 - Mar. 1991
Research Assistant College of Science & Technology Nihon University

1986
Nihon University, Graduate School, Division of Science and Engineering, 機械工

1981
Nihon University, Faculty of Science and Engineering, 機械

日本大学理工学部学術講演会, 優秀発表賞
Fatigue Life Characteristics of Spot-Welded Joints using 590MPa class High Strength steel as a Base Material after a Single overload, Japan society
Takaya Watanabe;Noboru Tomioka;Akifumi Okabe
The effect of a single overload on the fatigue life and the existence of crack opening / closing phenomenon of spot-welded tensile shear joints and peeling joints using 590 MPa class high-tensile steel plate as the base material was experimentally investigated.(1) In both tensile shear joints and peeling joints, when the value of a single overload increases by about 1.5 times or more, the fatigue life increases as the load increases.(2) A simple empirical formula for estimating fatigue life after a single overload was proposed, and good estimates were confirmed.(3) The existence of the crack opening / closing phenomenon due to a single overload was experimentally confirmed.

JSAE Fellow

JSAE Paper Prize

Method for Separating Stress of Spot Welds under Combined Loading Using Nominal Structural Stress Calculation Method
Noboru Tomioka Hiroaki Sato Akifumi Okabe
自動車技術会論文集, Mar. 2020, Refereed, Not invited
Lead

Effect of Sheet Thickness on Fatigue Strength of Spot-Welded Joints
Noboru Tomioka Masaki Washio Daijiro Kato Akifumi Okabe
自動車技術会論文集, Mar. 2018, Refereed, Not invited
Lead

Fatigue Life Evaluation of Spot-Welded Joint Under Two Steps Variable Amplitude Load
Chihiro Takatsuka Ryouhei Kawata Noboru Tomioka Akifumi Okabe
自動車技術会論文集, May 2015, Refereed, Not invited
Lead

Sensitivity Analysis Method of Nugget Diameter to Fatigue Life of Spot Welding
Takeshi Takasu Noboru Tomioka Akifumi Okabe
自動車技術会論文集, Jul. 2012, Refereed, Not invited
Lead

Fatigue life variation of the spot welding by the scatter factors
Noboru Tomioka Takehiro Handa Akifumi Okabe
自動車技術会論文集, Jul. 2012, Refereed, Not invited
Lead

Sensitivity Analysis Method of Sheet Thickness to Fatigue Life of Spot Welding
Takehiro Handa Noboru Tomioka Akifumi Okabe
自動車技術会論文集, Jul. 2012, Refereed, Not invited
Lead

A METHOD OF CALCULATING NOMINAL STRUCTURAL STRESS FOR CHARACTERIZING FATIGUE BEHAVIOR OF SPOT-WELDED JOINTS
Noboru Tomioka; Akifumi Okabe
18th European Conference on Fracture Fracture of Materials and Structures from Micro to Macro Scale, Sep. 2010, Not refereed, Not invited
Lead

A METHOD OF FATIGUE LIFE PREDICTION FOR ARC WELDED STRUCTURE
Akifumi Okabe; Noboru Tomioka
18th European Conference on Fracture Fracture of Materials and Structures from Micro to Macro Scale, Sep. 2010, Not refereed, Not invited

A Method for Calculating Nominal Structural Stress of Spot-Welded Structure (Application to the spot welded cylindrical shell structure)
岡部顕史; 冨岡昇
The Japan Society of Mechanical Engineers, Oct. 2009, Refereed, Not invited

Stiffness Analysis using Finite Beam Element for Spot-Welded Beam Considering Shearing Deformation
冨岡昇/渡辺和紀 岡部顕史
Transaction of Japan Society Automobile Engineering, May 2009, Refereed, Not invited
Lead

A Method for Calculating Nominal Structural Stress of Spot-welded Structure -The Spot Welding near the Flange Edge-
久保文武,岡部顕史,冨岡昇
Society of Automotive Engineers of Japan, Mar. 2008, Refereed, Not invited

A Method for Calculating Nominal Structural Stress of Arc-Welded Structures
加藤活浩,岡部顕史,冨岡昇
Society of Automotive Engineers of Japan, Mar. 2008, Refereed, Not invited

Frame Structure Analysis Method Considering Static Rigidity and Joint Stiffness of the Spot Welded Beam Utilized in FOA
新四原真大,廣瀬崇,岡部顕史,冨岡昇
Society of Automotive Engineers of Japan, May 2007, Refereed, Not invited

Method of Fatigue Life Prediction for Spot Welded Structure
Okabe; Kaneko; Tomioka
The Korean Society of Automotive Engineers, May 2006, Refereed, Not invited

A Method of Calculating Nominal Structural Stress of Spot Welded Structures -Examination of FEM Model around Spot Welding-
岡部; 冨岡; 澤村
Society of Automotive Engineers of Japan, Inc., Nov. 2005, Refereed, Not invited

A Method of Fatigue Life Prediction for Spot Welded Structure
Tsuneaki Kaneko; Akifumi Okabe; Noboru Tomioka
The 13th International Pacific Conference on Automotive Engineering, Aug. 2005, Refereed, Not invited

Evaluation of Stress Intensity Factor of Spot Welding Joints Using Enriched EFGM
Kazutoki Tanabe; Noboru Tomioka; Akifumi Okabe; Masakazu Aoki; Xingzhu Pei
COMPUTATIONAL MECHANICS, WCCM VI in conjunction with APCOM’04, Sep. 2004, Refereed, Not invited

Estimating Design Parameters of Jointed Part using Neural Network
Yosuke Sato; Akifumi Okabe; Noboru Tomioka; Takashi Hirose
COMPUTATIONAL MECHANICS, WCCM VI in conjunction with APCOM’04, Sep. 2004, Refereed, Not invited

A Method of Calculating Nominal Structural Stress for Spot Welded Structures
岡部顕史/冨岡昇; 澤村崇
Journal of Society of Automobile Engineers of Japan, Jul. 2004, Refereed, Not invited

Joint stiffness estimation of thin-walled structure using neural network
A Okabe; Y Sato; N Tomioka
Proceedings of the second international conference on structural and construction engineering, 2003, Not refereed, Not invited

A New Method of Stress Calculation in Spot Welded Joint and Its Application to Fatigue Life Prediction of Actual Vehicle
Kazuhiro Seto; Eisuke Nakayama; Koichi Tsunoda; Nobuhiro Fujita; Yuichi Yoshida; Masayuki Takahashi; Atsushi Kawamoto; Hisayuki Ishizu; Mitsuteru Kaneko; Noboru Tomioka; Masao Fujimoto
Proceedings of international body engineering conference 2003, 2003, Not refereed, Not invited

スポット溶接構造の公称構造応力算出法
自動車技術会論文集, 2002, Not refereed, Not invited

Evaluation of Stress intensity factor of spot welded Joint Using Enriched Element-Free Glerkin Method
Proceeding of WCCM, 2002, Not refereed, Not invited

Evaluation of Stress intensity factor of spot welded Joint using Enriched Element-Free
Proceeding of WCCM, 2002, Not refereed, Not invited

Estimating Design parameters of Jointed Part using neural network
Proceeding of WCCM, 2002, Not refereed, Not invited

Method of Fatigue Life Estination for Spot We bled Structures
Takashi Sawamura; Noboru Tomioka; Toshi Matsumoto; Akifumi Okabe
Proceeding of IBEC2002, 2002, Not refereed, Not invited

スポット溶接部材のねじり剛性と応力分布-ねじりモーメントとスポットピッチが長さ方向に変化する場合-
自動車技術会論文集, 2001, Not refereed, Not invited

スポット溶接部材の局部ゆがみの近似式とねじり剛性
自動車技術会論文集, 2001, Not refereed, Not invited

Warping Torsion Theory of Spot-welded Double Hat Beam
2000 ASME Pressur Vessels & Piping Conference Vol.1p.9-16, 2000, Not refereed, Not invited

Joint Stiffeness Estimation of Body Structure using Neural Network-Estimation from the rotation vector at end of jointed part-
Internatinal Conference on Computational Engineering & Sciences, 2000, Not refereed, Not invited

Warping Torsion Theory of Spot-welded Beam-For Single hat beam-
Internatinal Conference on Computational Engineering & Sciences, 2000, Not refereed, Not invited

Evaluation of Stress Intensity Factors of Spot Welded Joints Using Meshless Mehod-Double cup specimen under out-of-plane load-
Internatinal Conference on Computational Engineering & Sciences, 2000, Not refereed, Not invited

Warping torsion theory of spot-welded beam(For the double hat beam)
自動車技術会論文集, 1999, Not refereed, Not invited

Joint stiffness estimation of body structure using neural network(Estimating the joint stiffness of the influence factors)
Akifumi Okabe; Noboru Tomioka
日本機械学会論文集(A編), 1999, Not refereed, Not invited

Warping torsion theory of spot-welded beam(For the single hat beam)
PEI Xingzhu; TOMIOKA Noboru
自動車技術会論文集, 1999, Not refereed, Not invited

joint stiffness estimation of body structure using neural network
A Okabe; N Tomioka
Mechanics of structures and materials, 1999, Not refereed, Not invited

Joint Stiffness Identification of Body Structure Using Neural Network
Transaction of Society of automobile Engineering of Japan, 1998, Not refereed, Not invited

Warping torsion theory of spot-welded box section beam(For double hat beam)
Autum meeting of society of automobile enginnering of Japan, 1998, Not refereed, Not invited

Advanced status of Lavoratory for Free Electron Beam Research and Application of Nihon University
Proc. Of 23rd Linear Accelerator Meeting in Japan, 1998, Not refereed, Not invited

ニューラルネットワークによる車体構造の結合剛性同定
計算理工学国際会議ICES'97プロシーディング, 1997, Not refereed, Not invited

Joint Stiffness Identification of Body Structure Using Neural Network
1997 International Conference on Computational Engineering Science., 1997, Not refereed, Not invited

接着した箱型断面部材の疲労強度評価(ねじりを受ける場合)
日本機械学会論文集A, 1996, Not refereed, Not invited

ニューラルネットワークによる車体構造の結合剛性固定(T形結合部材の場合)
日本機械学会論文集A, 1996, Not refereed, Not invited

Joint Stiffness Identification of Body Structure Using Neural Network
Transactions of the Japan Society of Mechanical Engineers, 1996, Not refereed, Not invited

Fatigue Strength of the Adhesive Bonded Box Section Beam Under Torsion
Pressure Vessels & Piping Conference, proceeding, 1995, Not refereed, Not invited

Analysis of Torsional Rigidity on Adhesive Bonded Box Section Beams with a Longitudinal Partition
Transactions of the Japan Society of Mechanical Engineers, 1994, Not refereed, Not invited

Fatigue Strength of Adhesive Bonded Box Section Beams with a Longitudinal Partition under Torsion
Kakiage Masashi; Tomioka Noboru; Niisawa Jyunetu; Kitagawa Hideo; Koiso Akira
Transactions of the Japan Society of Mechanical Engineers, 1994, Not refereed, Not invited

Theoretical Analysis on Stress Distribution of Adhesive Bonded Joints
Transactions of JSAE, 1993, Not refereed, Not invited

Evaluation of Fatigue Strength on Steel Sheet Adhesive Joints
Hiroyuki Iguchi; Takayoshi Iwata
Transactions of JSAE, 1993, Not refereed, Not invited

Analysis of Torsional Rigidity on Adhesive Bonded Box Section Beams with a Longitudinal Partition
Transaction of JSME, 1993, Not refereed, Not invited

Fatigue Strength of Adhesive Bonded Box Section Beams with a Longitudinal Partition under Torsion
Kakiage Masashi; Tomioka Noboru; Niisawa Jyunetu; Kitagawa Hideo; Koiso Akira
Transaction of JSME, 1993, Not refereed, Not invited

Evaluation of Fatigue Strength on Adhesive Joints of Steel Plate
International Conference APSEC '92, 1992, Not refereed, Not invited

Stress Distribution and Rigidity of Bombed Straight Jointed Box-Beams under Out-of-Plane Bending
N TOMIOKA; S ONO; J NIISAWA; H KITAGAWA
International Conference APCS-91, 1991, Not refereed, Not invited

Strenth of the Spot-Welded Box Beam with a Longitudinal Partition under Torsion
KSME/JSME Joint Conference 'FRACTURE AND STRENGTH'90', 1990, Not refereed, Not invited

Stress Distribution and Fatigue Strength of Cross Tension Spot Weld
KSME/JSME Joint Conference FRACTURE AND STRENGTH '90, 1990, Not refereed, Not invited

An Improvement of the Fatigue Strength of the Spot-Welded Lap Joint
DH BAE; N TOMIOKA; J NIISAWA; H KITAGAWA
KSME/JSME Joint Conference FRACTURE AND STRENGTH '90, 1990, Not refereed, Not invited

Theoretical Analysis of Stress Distribution of Weldbonding Lap Joint under Tension Load
The 5th IPC, 1989, Not refereed, Not invited

Theoretical Analysis of Stress Distribution of Single Spot welded Lap Joint under Tension
自動車技術会論文集, 1988, Not refereed, Not invited

On Torsional Rigidity of Spot-Welded Box Beams with a Longitudinal Partion
自動車技術会論文集, 1987, Not refereed, Not invited

On Torsional Rigidity of Spot-Welded Box Beams with a Longitudinal Partion
JSAE Review, 1987, Not refereed, Not invited

On Stress Distribution of Spot-Welded Box Beams with a Longitudinal Partion subjected to Torsion
JSAE Review, 1987, Not refereed, Not invited

機械工学キーワード１２０
李和樹ほか, Joint work, 32-41,234-235, 李和樹ほか
コロナ社, Mar. 2012, Not refereed

Estimating the Statistical Distribution of Fatigue Life of Spot Welded Joints using Nominal Structural Stress
Shu Iijima; Noboru Tomioka; Akifumi Okabe
第65回日本大学理工学部学術講演会, Dec. 2021, 日本大学理工学部, Not invited

Fatigue Life Characteristics of Spot-Welded Joints using 590MPa class High Strength steel as a Base Material after a Single overload
Takaya Watanabe; Noboru Tomioka; Akifumi Okabe
第65回日本大学理工学部学術講演会, Dec. 2021, 日本大学理工学部, Not invited

アーク溶接構造の公称構造応力算出法ー両側隅肉溶接T字継手のビード幅の検討ー
北村健太郎・岡野凌汰・眞住海音(日大理工・学部・機械)・尾野弘明(日大理工・院(前)・機械)・岡部顕史・冨岡 昇(日大理工・教員・機械)
第64回日本大学理工学部学術講演会, Dec. 2020, 日本大学理工学部学術講演会

レーザ溶接構造の公称構造応力算出法－TS継手の並列溶接ビードの検討－
佐藤拓実・飯沼陸斗・榎本卓也・前垣善生・尾野弘明・岡部顕史・冨岡 昇(日大理工・学部・機械)
第64回日本大学理工学部学術講演会, Dec. 2020, 日本大学理工学部学術講演会

スポット溶接構造の公称構造応力推定法
-3点スポット溶接した等厚LL構造-
岩井 駿・伊藤大貴・大江 潤・岡部顕史・冨岡 昇(日大理工・学部・機械)
第64回日本大学理工学部学術講演会, Dec. 2020, 日本大学理工学部学術講演会

High Cycle Fatigue Damage of Steel Sheet used in Vehicle Body
Kenta KIMURA Noboru Tomioka Akifumi Okabe
日本機械学会M&M2019, Nov. 2019, 日本機械学会, Not invited

Fatigue Life of Spot-Welded Joint under Two Steps Variable Amplitude Load
Yusuke ISHIOKA Noboru Tomioka Akifumi Okabe
日本機械学会M&M2019, Nov. 2019, 日本機械学会, Not invited

Fatigue Life Prediction Method for Spot-Welded Joints under Variable Amplitude Stress including Stress below the Fatigue Limit
Haru ISHIMA Noboru Tomioka Akifumi Okabe
日本機械学会M&M2019, Nov. 2019, 日本機械学会, Not invited

Method of Separating Stress of Spot Welds under Combined Loading using Nominal Structural Stress Calculation Method
Hiroaki Sato Noboru Tomioka Akifumi Okabe
自動車技術会2019年秋季大会, Oct. 2019, 自動車技術会, Not invited

Influence of Scatter factors and Statistical Distribution of Fatigue lives of Spot-Welded Joints under Repeated Shear Torsion
Mikiko Takada Noboru Tomioka Akifumi Okabe
自動車技術会2019年秋季大会, Oct. 2019, 自動車技術会, Not invited

Fatigu Life by Nominal Structural Stress of Laser welded strucure - Effect of change distance between welds on nominal structural stress -
HiroakiOno Tsubasa Otsuki Akifumi Okabe Noboru Tomioka
自動車技術会2019年秋季大会, Oct. 2019, 自動車技術会, Not invited

Fatigue Life of Spot-welded Joint under Two Steps Variable Amplitude Load
Yoshitomo Ikeda; Haru Ishima; Yusuke Ishioka; Noboru Tomioka; Akifumi Okabe
第62回日本大学理工学部学術講演会, Dec. 2018, 日本大学理工学部, Not invited

Effect of Scatter factor on Fatigue Strength of Spot-Welded Joint under Shear Torsion
Ryo Kadota; Hirotaka Kikegawa; Mikiko Takada; Tatsuya Hiruma; Noboru Tomioka; Akifu mi Okabe
第62回日本大学理工学部学術講演会, Dec. 2018, 日本大学理工学部, Not invited

Fatigue Assessment Methods of Fatigue Damage due to Lower loading than the Fatigue Limit of Spot-Welded Joints
Motoki Hamano; Hotaka Tsubota; Naoki Minami; Noboru Tomioka; Akifumi Okabe
第62回日本大学理工学部学術講演会, Dec. 2018, 日本大学理工学部, Not invited

High Cycle Fatigue Damage Prediction of Thin Steel Sheet in Vehicle Body Based on Continuum Damage Mechanics
Junya Hanzawa; Yuji Ito; Tatsuya Tokizawa; Kenta Kimura; Noboru Tomioka; Akifumi Okabe
第62回日本大学理工学部学術講演会, Dec. 2018, 日本大学理工学部, Not invited

Study on simple fatigue test specimen of vehicle body joints
Omar Sagar; Jiarui Zhang; Hiroaki Sato; Noboru Tomioka; Akifumi Okabe
第62回日本大学理工学部学術講演会, Dec. 2018, 日本大学理工学部, Not invited

Fatigue Life Evaluation of Spot-Welded Joint Under Two Steps Variable Amplitude Load
Hikaru Matumoto Kenshiro Yoshida Masaki Ohaishi Shunsuke Matsuzono Noboru Tomioka Akifumi Okabe
第60回日本大学理工学部学術講演会, Dec. 2016, 日本大学理工学部, Not invited

Effect of Sheet thickness on Fatigue Strength of Spot-Welded Joint under Torsion
Kenji Chusha Shunsuke Tanaka Masaki Washio Daijiro Katou Noboru Tomioka Akifumi Okabe
第60回日本大学理工学部学術講演会, Dec. 2016, 日本大学理工学部, Not invited

Damage Evaluation of Spot-Welded Joints
Urabe Takumi Doki Kazuya Ohashi Masaki Matsuzono Shunsuke Tomioka Noboru Okabe Akifumi
第60回日本大学理工学部学術講演会, Dec. 2016, 日本大学理工学部, Not invited

The method of separating principal stress by each component of general loads in nominal structural stress calculation method for spot welded structure
Tomoyasu Sakurai Hiroyuki Koyano Shogo Okubo Noboru Tomioka Akihumi Okabe
第60回日本大学理工学部学術講演会, Dec. 2016, 日本大学理工学部, Not invited

Fatigue Damage due to Lower Load than the Fatigue Limit of Spot-Welded Joints under Multi Two steps Variable Amplitude Load
Takuya Matsumoto1 Kyoichi Minegishi Masaru Hayashi Noboru Tomioka Akihumi Okabe
第60回日本大学理工学部学術講演会, Dec. 2016, 日本大学理工学部, Not invited

Influence of Variation of Spot Welding Location on Fatigue Life of Spot Welded Joint
Naoki Minami Tatuya Hiruma Daijiro Kato Masaki Washio Noboru Tomioka Akihumi Okabe
第60回日本大学理工学部学術講演会, Dec. 2016, 日本大学理工学部, Not invited

Fatigue Life Evaluation of Spot-Welded Joints Under Variable Amplitude Loading
Shunsuke MATSUZONO Masaki OHASHI Noboru TOMIOKA
The 21st National Conference on Vehicle Engineering, Nov. 2016, SAE-TPE, Not invited

Joint Stiffnes Estimation Method of Body Structure using Polynomial Regression
Akifumi Okabe Keisuke Shimura Masahiro Ishii Takashi Turumaki Hayato Hatakeyama Noboru Tomioka
2016 JSAE Congress (Autumn) Proceedings, Oct. 2016, JSAE, Not invited

Fatigue life prediction of line welding structure by nominal structural stress
Takaya Hayato Ryou Matsuura Asuma Yamashita Akifumi Okabe Noboru Tomioka
2016 JSAE Congress (Autumn) Proceedings, Oct. 2016, JSAE, Not invited

Effect of Sheet Thickness on Fatigue Strength of Spot-Welded Joints
Masaki Washio Daijiro Kato Noboru Tomioka Akifumi Okabe
2016 JSAE Congress (Autumn) Proceedings, Oct. 2016, JSAE, Not invited

Effect on variation of the spot welding position under a shear loading condition
Hayato Hatakeyama Yuuya Mastuzaki Noboru Tomioka Akifumi Okabe
2016 JSAE Congress (Autumn) Proceedings, Oct. 2016, JSAE, Not invited

Fatigue Life Evaluation of Spot-Welded Joint Under Two Steps Variable Amplitude Load
Masaki Ohaishi Shunsuke Matsuzono Noboru Tomioka
M&M2016材料力学カンファレンス, Oct. 2016, 日本機械学会, Not invited

Fatigue Damage due to Lower Load than the Fatigue Limit of Spot-Welded Joints under Multi Two steps Variable Amplitude Load
Masaru Hayashi Noboru Tomioka
M&M2016材料力学カンファレンス, Oct. 2016, 日本機械学会, Not invited

Influence of Variation of Nugget Diameter, Spot Welding Location and Sheet thickness on Fatigue Life of Spot Welded Joint
Daijiro Kato Masaki Washio Noboru Tomioka
M&M2016材料力学カンファレンス, Oct. 2016, 日本機械学会, Not invited

The method of separating principal stress by each component of general loads in nominal structural stress calculation method for spot welded structure
Shogo Okubo Noboru Tomioka
M&M2016材料力学カンファレンス, Oct. 2016, 日本機械学会, Not invited

Fatigue Life Evaluation of Spot-Welded Joint Under Two Steps Variable Amplitude Load
Chihiro Takatsuka Ryouhei Kawata Noboru Tomioka Akifumi Okabe
自動車技術会秋季大会, Oct. 2014, 日本自動車技術会, Not invited

Fatigue Life Evaluation of Spot-Welded Joint Under Two Steps Variable Amplitude Load
髙塚 千尋 冨岡 昇 岡部 顕史
日本機械学会２０１４材料力学カンファレンス, Jul. 2014, 髙塚 千尋 冨岡 昇 岡部 顕史, Not invited

Sensitivity analysis of spot weld using nominal structural stress calc. method - Sensitivity of the thickness and the nugget diameter -
枝亮平; 内野貴宏; 半田武弘; 岡部 顕史; 冨岡 昇
Society of Automotive Engineers of Japan, Mar. 2011

Sensitivity analysis of spot weld using nominal structural stress calc. method- Sensitivity of the thickness and the nugget diameter -
枝亮平; 内野貴宏; 半田武弘; 岡部 顕史; 冨岡 昇
Society of Automotive Engineers of Japan, Mar. 2011, Not invited

Estimating Each Element of Joint Stiffness Matrix using Neural Network （Application to spot welded joints）
Kyokuka KYU; Akifumi OKABE; Noboru TOMIOKA
The Japan Society of Mechanical Engineers, Oct. 2010, The Japan Society of Mechanical Engineers

Estimating Each Element of Joint Stiffness Matrix using Neural Network（Application to spot welded joints）
Kyokuka KYU; Akifumi OKABE; Noboru TOMIOKA
The Japan Society of Mechanical Engineers, Oct. 2010, The Japan Society of Mechanical Engineers, Not invited

A Method for Calculating Nominal Structural Stress of Spot-Welded Structure -Only using the displacements on the boundary of circular plate-
稲生博紀,冨岡昇,岡部顕史
Society of Automotive Engineers of Japan, Oct. 2010

A Method for Calculating Nominal Structural Stress of Spot-Welded Structure-Only using the displacements on the boundary of circular plate-
稲生博紀; 冨岡昇; 岡部顕史
Society of Automotive Engineers of Japan, Oct. 2010, Not invited

A Method for Calculating Nominal Structural Stress of Spot-Welded Structure － Application to the spot welded shell structure with the curvature－
半田武弘,岡部顕史,冨岡昇
Society of Automotive Engineers of Japan, Mar. 2010

Estimating Each Element of Joint Stiffness Matrix using Neural Network －Application to a spot welded T-shape joint structure－
裘旭華,大石翼,加藤雅章,岡部顕史,冨岡昇
Society of Automotive Engineers of Japan, Mar. 2010

Method for Calculating Nominal Structural Stress of Arc Welded Structure －Study of FE model of Arc weld－
中野大輝,井上秀一,岡部顕史,冨岡昇
Society of Automotive Engineers of Japan, Mar. 2010

A Method for Calculating Nominal Structural Stress of Spot-Welded Structure －Only using the displacements on the boundary of circular plate－
稲生博紀,高須健史,冨岡昇,岡部顕史
Society of Automotive Engineers of Japan, Mar. 2010

A Method for Calculating Nominal Structural Stress of Spot-Welded Structure－ Application to the spot welded shell structure with the curvature－
半田武弘; 岡部顕史; 冨岡昇
Society of Automotive Engineers of Japan, Mar. 2010, Not invited

Estimating Each Element of Joint Stiffness Matrix using Neural Network－Application to a spot welded T-shape joint structure－
裘旭華; 大石翼; 加藤雅章; 岡部顕史; 冨岡昇
Society of Automotive Engineers of Japan, Mar. 2010, Not invited

Method for Calculating Nominal Structural Stress of Arc Welded Structure－Study of FE model of Arc weld－
中野大輝; 井上秀一; 岡部顕史; 冨岡昇
Society of Automotive Engineers of Japan, Mar. 2010, Not invited

A Method for Calculating Nominal Structural Stress of Spot-Welded Structure－Only using the displacements on the boundary of circular plate－
稲生博紀; 高須健史; 冨岡昇; 岡部顕史
Society of Automotive Engineers of Japan, Mar. 2010, Not invited

Estimating Each element of Joint stiffness matrix using Neural network －Application to a Spot welded L-shape joint structure－
宮崎孝,藪木泰宏,飯田稔,岡部顕史,冨岡昇
Society of Automotive Engineers of Japan, Mar. 2009, Not invited

Stiffness Analysis using Finite Beam Element for Spot-Welded Beam Considering Shearing Deformation
渡辺和紀,冨岡昇,岡部顕史
Society of Automotive Engineers of Japan, Oct. 2008, Not invited

A Method for Calculating Nominal Structural Stress of Spot-Welded Structure Application to the spot welded shell structure
岡部顕史,冨岡昇
Society of Automotive Engineers of Japan, Oct. 2008, Not invited

A Method for Calculating Nominal Structural Stress of Spot-Welded Structure -The spot welding near the flange edge-
久保文武/岡部顕史,冨岡昇
Society of Automotive Engineers of Japan, Oct. 2007

A Method for Calculating Nominal Structural Stress of Spot-Welded Structure-The spot welding near the flange edge-
久保文武; 岡部顕史; 冨岡昇
Society of Automotive Engineers of Japan, Oct. 2007, Not invited

A Method for Calculating Nominal Structural Stress of Arc-Welded Structures
加藤活浩/岡部顕史,冨岡昇
Society of Automotive Engineers of Japan, Oct. 2007, Not invited

METHOD FOR CALCULATING NOMINAL STRUCTURAL STRESS OF SPOT WELDING
Kubo; Okabe; Tomioka
4th Pacific Asia Conference on Mechanical Engineering, Aug. 2007, Not invited

METHOD OF FATIGUE LIFE PREDICTION FOR ARC WELDED STRUCTURE
Kato; Okabe; Tomioka
4th Pacific Asia Conference on Mechanical Engineering, Aug. 2007, Not invited

Stress Analysis of Thin Walled Box Section Beam by Spot Welding in Irregular Pitch Under Torsion
早川博高 冨岡昇 中村昌弘 岡部顕史
2006 JSAE Annual Congress (Fall), Sep. 2006, Not invited

Frame structure analysis method considering static rigidity and joint stiffness of the spot welded beam utilized in FOA
新四原真大 廣瀬崇 岡部顕史 冨岡昇
2006 Annual Congress (Fall), Sep. 2006, Not invited

A Method for Calculating Structural Stress of Arc Welded Structures
加藤活浩 岡部顕史 冨岡昇
Mechanical Engineering Congress, 2006 Japan JSME, Sep. 2006, Not invited

A Method for Calculating Nominal Structural Stress of Spot Welding
久保文武 岡部顕史 冨岡昇
Mechanical Engineering Congress, 2006 Japan JSME, Sep. 2006, Not invited

Stress Analysis of Thin Walled Box Section Beam by Spot Welding in Irregular Pitch Under Torsion
中村昌弘 冨岡昇 岡部顕史 早川博高
Mechanical Engineering Congress, 2006 Japan JSME, Sep. 2006, Not invited

Estimating Each element of Joint stiffness matrix using Neural Network
吉田英人 冨岡昇 岡部顕史
Mechanical Engineeing Congress, 2006 Japan JSME, Sep. 2006, Not invited

Framed structure analysis of an automobile body in consideration of the joint stiffness at an initial design stage
新四原真大,廣瀬崇,岡部顕史,冨岡昇
The Japan Society of Mechanical Engineers, Nov. 2005, Not invited

Estimating Each element of Joint stiffness matrix using Neural Network
廣瀬崇,新四原真大,岡部顕史,冨岡昇
The Japan Society of Mechanical Engineers, Nov. 2005, Not invited

Rigidity analysis of thin walled box section beam by spot welding in irregular pitch under torsion
早川博高,冨岡昇,岡部顕史
The Japan Society of Mechanical Engineers, Nov. 2005, Not invited

Stress analysis of thin weld box section beam by spot welding in irregular pitch under torsion
早川博高,冨岡昇,岡部顕史
The Japan Society of Mechanical Engineers, Sep. 2005, Not invited

Estimating Each element of Joint stiffness matrix using Neural network
廣瀬崇,新四原真大,岡部顕史,冨岡昇
The Japan Society of Mechanical Engineers, Sep. 2005, Not invited

Evaluation of Stress Intensity Factor of Spot Welding Joint Using EFGM
田邊和時/青木雅一; 冨岡昇; 岡部顕史
Proceeding of the 2004 Annual Meeting of the JSME/MMD, Jul. 2004, Not invited

Method of Fatigue Life Estimation for Spot-Welded Structures
金子恒明/岡部顕史; 冨岡昇; 澤村崇
Proceeding of the 2004 Annual Meeting of the JSME/MMD, Jul. 2004, Not invited

Method of Fatigue Life Estimation for Spot-Welded Structures-Examination of FEM model of Spot-welding part-
岡部顕史/金子恒昭; 冨岡昇
Proceedings of the 2004 Annual Meeting of the JSME/MMD, Jul. 2004, Not invited

Estimating Each element of Joint stiffness matrix using Neural Network
廣瀬崇/佐藤陽介; 岡部顕史; 冨岡昇
Proceedings of the 2004 Annual Meeting of the JSAE/MMD, Jul. 2004, Not invited

面内荷重に対するスポット溶接構造の公称構造応力算出
自動車技術会学術講演会前刷集, 2003, Not invited

ニュートラルネットワークを用いた結合剛性推定法（立体結合部材への適用）
日本機械学会東北支部第39期秋季講演会講演論文集, 2003, Not invited

Enriched EFGMを用いたスポット溶接継手の応力拡大係数評価
日本機械学会東北支部第39期秋季講演会講演論文集, 2003, Not invited

内面荷重に対するスポット溶接構造の公称構造応力算出法
M&M2003材料力学部門講演会講演論文集, 2003, Not invited

エレメントフリーガラーキン法によるき裂を有する異材継手の三次元応力解析
第16会計算力学講演会講演論文集, 2003, Not invited

ニューラルネットワークを用いた結合部の設計パラメータ推定法
第16回計算力学講演会講演論文集, 2003, Not invited

スポット溶接構造の疲労寿命計測手法
自動車技術会春季学術講演会, 2002, Not invited

曲げを受けるスポット溶接継平の公称構造応力算出法
日本機械学会第15回計算力学講演会論文集, 2002, Not invited

Evaluation of stress intensity factor of spot welded joint using meshless method(double cups joint under tensile shear)
日本機械学会北陸信越支部第37期総会・講演会講演論文集, 2000, Not invited

スポット溶接部材のねじり剛性
日本自動車技術会2000年春季大会, 2000, Not invited

スポット溶接構造物寿命予測W/G活動の概要と理論
日本自動車技術会シンポジウム「これからの車体の疲労耐久性評価への新しい提案」Vol. 6No.0p.5-14, 2000, Not invited

CAEによるスポット溶接構造物の疲労寿命予測手法の提案
日本自動車技術会シンポジウム「これからの車体の疲労耐久性評価への新しい提案」, 2000, Not invited

ニューラルネットワークを用いた結合剛性マトリックスの要素推定
計算工学講演会, 2000, Not invited

ニューラルネットワークを用いた結合剛性推定法-結合部端の回転角からの推定法-
日本機械学会2000年年次大会, 2000, Not invited

スポット溶接部材のねじり剛性-差厚部材の場合-
日本機械学会東北支部多賀城地方講演会, 2000, Not invited

公称構造応力の理論解
日本機械学会材料力学部門講演会, 2000, Not invited

スポット溶接部材のねじり剛性と応力分布
日本機械学会材料力学部門講演会, 2000, Not invited

メッシュレス法を用いたスポット溶接DC継手の応力拡大係数評価
日本機械学会材料力学部門講演会, 2000, Not invited

スポット溶接部材のねじり剛性と応力分布-スポットピッチが長さ方向に変化する場合-
日本自動車技術会秋季学術講演会, 2000, Not invited

Warping torsion theory of spot-welded beam(For the single hat beam)
自動車技術会春季学術講演会前刷集, 1999, Not invited

Warping torsion theory of spot-welded beam(For the warping bound elastically at both ends)
自動車技術会秋季学術講演会前刷集, 1999, Not invited

Warping torsion theory of spot-welded beam(For the warping bound elastically at both ends)
Proceedings of the 1999 Annual Meeting of JSME/MMD, 1999, Not invited

Joint stiffness estimation of body structure using neural network(estimation from the rotation vector at end of jointed part)
Proceedings of the 1999 Annual Meeting of JSME/MMD, 1999, Not invited

Evaluation of stress intensity factor of spot welded joint using meshless method(double cups joint under out-of-plane load)
The 12th Computational Mechanics Conference, 1999, Not invited

スポット溶接部材のゆがみねじり理論(両ハット材の場合)
自動車技術会秋季学術講演会, 1998, Not invited

せん断曲げを受ける接着した箱型断面部材の応力解析
日本機械学会材料力学講演会講演集, 1995, Not invited

ニューラルネットワークによる車体構造の結合構造の決定
日本機械学会全国大会講演論文集, 1995, Not invited

Japan Society of Mechanical Engineers

Society of Automotive Engineers of Japan

Japan Society for Computational Engineering and Science

特許第4135946号, WO2004/099761, 特願2004-571574, Method of Fatigue Life Estimation for Spot-Welded Structure