Preprints of the National Meeting of JWS

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Preprints of the National Meeting of JWS

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Development of Extrusion shapes with integrated cooling mechanism and Joining technology with Excellent thermal management

Hideyuki NAKASHIMA, Katsura OWAKI, Takumi KANAOKA, Akira NAKAGAWA

Pages 208-209
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_208

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Effect of Mill Scale Characteristics on Dross Adhesion of Steel Plates in Laser Cutting with Nitrogen Gas

Yu UCHIDA, Hitoshi OZAKI, Hiroshi KAWAKAMI, Norihiro KUROSAWA, Kentaro ...

Pages 210-211
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_210

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Effects of Pre-burn on Cutting Quality in Laser Cutting of Steel Plate with Mill Scale

Tatsuya HASEGAWA, Hitoshi OZAKI, Hiroshi KAWAKAMI, Tatsuki YAMAOKA, Ke ...

Pages 212-213
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_212

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Surface Modification of Chrome Molybdenum Steel by Fiber Laser

Ryota KOBAYASHI, Tomiko Yamaguchi

Pages 214-215
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_214

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Evaluation on Internal Residual Stress of Resistance Spot-welded High Strength Steel Sheets by Hole Drilling Method

Muneyoshi IYOTA, Yuki TAKETANI, Ryuki KUWATA, Tadafumi HASHIMOTO, Shig ...

Pages 220-221
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_220

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Gas heating analysis considering gas flame temperature and heat transfer.

Ryo MATSUOKA, Shintaro MAEDA, Ryohei NATSUME, Kosuke TAMURA, Yosuke YA ...

Pages 222-223
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_222

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Influence of Yield Ratio on Welding Residual Stress Distribution Change Behavior by Mechanical Stress Relief

Yuya SATO, Shunichi TACHIBANA, Kento MORITA, Hongchang ZHOU, Yoshiki M ...

Pages 224-225
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_224

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Study on the influence of residual stress inside the material and affected layer on deformation caused by milling

Tenchi MIYAGAWA, Shigetaka OKANO, Masahito MOCHIZUKI, Tadafumi HASHIMO ...

Pages 226-227
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_226

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Effect of specimen size on residual stress on surface of resistance spot welds

―Residual stress formation in resistance spot welding Part 2―

Takumi MIZUTANI, Tohru OKADA, Hiroki FUJIMOTO

Pages 228-229
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_228

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STUDY ON RESIDUAL STRESS DISTRIBUTION AND SECONDARY DEFORMATION IN WELDING ADDITIONAL PLATES AFTER

PART Ⅰ: TRANSITION IN RESIDUAL STRESS AND MECHANISM OF WELDING DEFORMATION

JUNG Da Bin, Yi Myung Su

Pages 230-231
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_230

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A STUDY ON RESIDUAL STRESS CHANGES ACCORDING TO HEAT INPUT OF FAIRING AFTER PLATES FILLET WELDING

PART Ⅰ: ANALYTICAL CONSIDERATIONS OF THE STRESS FIELD

Jeong Hyun Jeong

Pages 232-233
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_232

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It could be concluded that the increase in residual stress caused by excessive bending was the cause of secondary deformation.

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Rapid Prediction of Deformation and Stress in Transient Phenomena during Welding Using AI-Based FEM Thermal Elastic Plastic Analysis

Takuya KATO, Shintaro MAEDA, Kazuki IKUSHIMA, Masakazu SHIBAHARA

Pages 234-235
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_234

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Inverse Estimation of Interfacial Property of Fe/Al Dissimilar Welds Using a Hybrid DIC-FEM Method

Kiyoaki SUZKI, Yutaka SATO, Shun TOKITA, Sylvain DANCETTE, Joël LACHMB ...

Pages 236-237
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_236

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Effect of Multi-pass Heating on Deformation in Line Heating.

Sora HIROSE, Kohei YAMAMOTO, Takuya KATO, Shintaro MAEDA, Kazuki IKUSH ...

Pages 238-239
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_238

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Effect of welding method and heat input conditions on strain behavior during the Trans-Varestraint test

Natsumi MORIWAKE, Yuki NOMURA, Shigetaka OKANO, Masahito MOCHIZUKI

Pages 240-241
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_240

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Study on Welding Sequence to Reduce Welding Deformation using Genetic Algorithm.

Shintaro MAEDA, Kensaku NISHIHARA, Takahito NAKAMURA, Takuya NAGAI, To ...

Pages 242-243
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_242

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Development of Simplified Mechanical Model for Multi-pass Welding

Wenda WANG, Shintaro MAEDA, Kazuki IKUSHIMA, Masakazu SHIBAHARA

Pages 244-245
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_244

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Study for Faster Analysis of Weld Deformation during Multi-Layer Welding of Large-Scale Steel Structures.

Hayato NAGAKI, Mitsuru YAMABE, Shintaro MAEDA, Kazuki IKUSHIMA, Masaka ...

Pages 246-247
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_246

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An effective FE simulation method for butt-welding process by continuous distributed heat input

Xiaoyu GUAN, Mikihito HIROHATA

Pages 248-249
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_248

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Comparison of Test and Thermal Conduction Analysis for Electroslag Welding

Numerical Analysis of Residual Stress in Electro Slag Welds (Part 1)

Ryota ARAKIDA, Tetsuya TAGAWA, Takumi Matsuzaki, Hongchang Zhou, Yoshi ...

Pages 250-251
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_250

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Characteristics of Residual Stress Distribution in Electroslag Welding

Numerical Analysis of Residual Stress in Electroslag Welding (Part 2)

Ryota ARAKIDA, Tetsuya TAGAWA, Takumi MATSUZAKI, Hongchang ZHOU, Yoshi ...

Pages 252-253
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_252

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Study on Residual Stress Distribution Characteristic at Shaft Tip by Induction Hardening

Tomoki OYABU, Shigetaka OKANO, Masahito MOCHIZUKI, Yoshitomi YAMADA

Pages 254-255
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_254

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A STUDY ON THE PIPE SURFACE TEMPERATURE PREDICTION FORMULA BY WELDING

PART Ⅰ: ANALYTICAL CONSIDERATIO NS OF THE STRESS FIELD

Yi Myung Su

Pages 256-257
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_256

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The purpose of this study is to develop a calculation formula for estimating the temperature history according to geometry/material/heat input conditions, and the results are summarized.

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Simulation for Ductile Crack Growth with Flat/Slant Transition Based on X-FEM

Ryohei YAMAHA, Hiroto SHOJI, Mitsuru OHATA

Pages 258-259
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_258

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Study for material dependency of loading mode effect on brittle fracture resistance based on Local Approach

Ryota YAMAMOTO, Kazuma SHIMIZU, Hiroto SHOJI, Mitsuru OHATA

Pages 260-261
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_260

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Analytical study on fracture controlling parameter for fracture assessment of thin brittle steel sheets

Kaita OKA, Kazma SHIMIZU, Hiroto SHOJI, Mitsuru OHATA, Ryuichi INOUE, ...

Pages 262-263
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_262

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Study on Improving Accuracy of WES2805 CTOD Design Curve 2

- Validation of the Proposed Design Curve -

Takayuki Yonezawa, Teppei Okawa, Yoichi Kayamori

Pages 264-265
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_264

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Effect of Notch Root Radius on Deformability of High Strength Knock-off Bolt for Bridges

Kento OZAKI, Hayato NAGAKI, Yasuo HANAOKA, Dai SAGO, Kaisei SASAKI, Hi ...

Pages 266-267
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_266

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Evaluation of Fracture Safety of Onshore LNG Storage Tank with Cryogenic Steel

Wonjun Jo, Daehee Seong, Jeongung Park, Gyubaek An

Pages 268-269
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_268

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Fracture Toughness of an API 5L X65 Linepipe and the Girth Welds under High-Pressure Hydrogen Gas Environment

Keigo Manabe, Shusuke Fujita, Yuki Kiyokawa, Yuji Kisaka, Fumiaki Kimu ...

Pages 270-271
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_270

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Effects of Plastic Strain on the Amount of Dissolved Hydrogen of API 5L X65 Linepipe and Girth Welds Under High-Pressure Hydrogen Gas Environment

Yuki Kiyokawa, Yuji Kisaka, Fumiaki Kimura, Yasuhiro Kawai, Shusuke Fu ...

Pages 272-273
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_272

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Effect of loading speed on the mechanical properties of girth welds of high-strength linepipe in a hydrogen environment.

Hiroto GAMO, Hiroto SHOJI, Mitsuru OHATA, Yuki KIYOKAWA, Yuji KISAKA, ...

Pages 274-275
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_274

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Delayed fracture behavior of spot welded tensile-shear joint of ultra-high strength steel sheet

– Macroscopic plastic deformation and crack propagation in sustained tensile-loading test –

Naoki Hashimoto, Ryotaro Taguchi, Ken’ichi Yokoyama, Shinsuke Komine, ...

Pages 276-277
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_276

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Study for relaxation of dimensional requirement on insert material of RPV surveillance test specimen

―Evaluation of effect of shape and sizes of weld-defects in reconstituted specimen on Charpy impact test―

Kenshin JINNOUCHI, Shigetaka OKANO, Masahito MOCHIZUKI

Pages 278-279
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_278

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Development of Digital Twin System of Fatigue Life Extension Considering Crack Face Corrosion

Homare SHIBATA, Kenya KONO, Keisuke SATOH, Riccardo FINCATO, Seiichiro ...

Pages 280-281
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_280

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Establishment of Evaluation Method for Controlling Factors of Fatigue Performance Based on Automated Multi-Section Profile Analysis of Welded Joints

Taiki OGAWA, Pengjun LUO, Seiichiro Tsutsumi

Pages 282-283
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_282

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Effect of Stress Ratio and Notch on Fatigue Crack Initiation and Propagation Properties of Steel

Taisuke KIRYU, Homare SHIBATA, Riccardo FINCATO, Seiichiro TSUTSUMI

Pages 284-285
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_284

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Low cycle fatigue properties of SUS316L for large liquefied hydrogen tank

Yuji Ando, Rintaro Tsuda, Shohei Uranaka, Tomoya Kawabata

Pages 286-287
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_286

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Weld Bead Shape of the Developed Split Welding for Improving Fatigue Strength

Yoshifumi TAKAKI, Takahiro SAKIMOTO, Yasuaki OKITA, Keiji UEDA

Pages 288-289
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_288

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Effect of Fatigue Crack Propagation Delay on SBHS Steel

Tomoharu KATO, Yoshihiro SAKINO, Yuji SANO, Yoshio MIZUTA, Satoshi TAM ...

Pages 290-291
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_290

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Experimental study on fatigue life improvement of fillet weld root by soft metal insertion

Jiahao MAO, Mikihito HIROHATA, Daichi HAMASAKA

Pages 292-293
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_292

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Effect of crack propagation delay by stud welding in the low stress range

Kazuma SHOJI, Yoshihiro SAKINO, Shinya MATSUMOTO

Pages 294-295
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_294

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Obtaining High-temperature Ductility Curves of Stainless steels using In-plane Constraint and Relaxation Type Hot Cracking Evaluation System

- Development of In-plane Constraint and Relaxation Type Hot Cracking Evaluation System (3rd Report) -

[in Japanese], [in Japanese], [in Japanese], [in Japanese]

Pages 296-297
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_296

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Observation of Solidification Phenomena using Chemical Composition Controlled Weld Metal by Twin Hot-wire Method

Tamaki ITO, Wataru SHAMOTO, Yuhei MORITA, Kenji SHINOZAKI, Motomichi Y ...

Pages 298-299
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_298

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Obtaining High-temperature Ductility Curves of Chemical Composition Controlled Weld Metal by Twin Hot-wire Method

Evaluation of Ductility-dip Cracking Susceptibility by Combining Chemical Composition Control of Weld Metal by Twin Hot-wire Method and High-temperature Tensile Test using In-situ Observation (First report)

Wataru SHAMOTO, Tamaki ITO, Kenji SHINOZAKI, Motomichi YAMAMOTO, Tetsu ...

Pages 300-301
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_300

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Weld Solidification Cracking Susceptibility of Dissimilar Austenitic Weld Metals and the Influential Factors

Kota KADOI, Fendong HE, Yuyang HOU, So AOKI, Shigetaka OKANO

Pages 302-303
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_302

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Intragranular Hardness Behavior During Stress Relief Cracking in Heat Affected Zone of Ferritic Heat Resistant Steel

Ryosuke HAMANA, Kana JOTOKU, Shotaro YAMASHITA, Hiroyuki HIRATA, Kazuy ...

Pages 304-305
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_304

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Effect on Hydrogen Content in Steel Weld Metal of Fluorine in Seamless Flux Cored Wire

Kotaro WATANABE, Yasuhito TOTSUKA, Ryutaro CHIBA, Tomokatsu IWAKAMI

Pages 306-307
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_306

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Effect of Phosphorous on Reheat Cracking Susceptibility of Alloy800H Weld Metal

Kana JOTOKU, Shotaro YAMASHITA, Hiroyuki HIRATA, Kazuyoshi SAIDA, Kent ...

Pages 308-309
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_308

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Influence of Carbon Content on Grain Boundary Character and Liquation Cracking Susceptibility in Alloy625

Kota KADOI, Yudai NAKAMORI, Chisato ASADA, Kana JOTOKU, Kenta YAMADA, ...

Pages 310-311
Published: 2024
Released on J-STAGE: December 22, 2024

DOIhttps://doi.org/10.14920/jwstaikai.2024f.0_310

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