2024-03-29T08:29:34Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00007468
2023-01-16T03:48:03Z
320:321:322
ねじり - 軸力負荷における鉄鋼薄肉円管試験片における円孔からの疲労き裂の伝ぱ挙動
田中, 啓介
TANAKA, Keisuke
秋庭, 義明
AKINIWA, Yoshiaki
高橋, 晶広
TAKAHASHI, Akihiro
御厨, 照明
MIKURIYA, Teruaki
open access
日本機械学会
本文データは学協会の許諾に基づきCiNiiから複製したものである。
Fatigue
Crack Propagation
Torsion
Combined Stress
Stress Intensity Factor
Crack Opening Displacement
J-Integral
Fatigue tests of crack propagation from a circular notch in thin-walled tubular specimens made of a medium-carbon steel were performed under cyclic torsion with and without superposed static and cyclic axial loading. The propagation path of Mode I fatigue cracks followed the direction perpendicular to the maximum direction of the total range of the normal stress. The propagation rate was faster than the uniaxial data when compared at the same range of the stress intensity factor or the effective stress intensity factor. The negative nonsingular stress induced excessive plasticity ahead of the fatigue crack, which accelerated the fatigue crack. The J-integral range was proved to be an appropriate parameter for crack propagation with excessive plasticity under combined loading.
日本機械学会
2003-06
jpn
journal article
VoR
http://hdl.handle.net/2237/9149
https://nagoya.repo.nii.ac.jp/records/7468
http://ci.nii.ac.jp/naid/110002370404/
0387-5008
日本機械学會論文集 A編
69
682
1001
1008
https://nagoya.repo.nii.ac.jp/record/7468/files/JsMecEngA_69-682-1001.pdf
application/pdf
685.3 kB
2018-02-19