Fatigue Modeling for Superelastic NiTi Considering Cyclic Deformation and Load Ratio Effects
Fatigue Modeling for Superelastic NiTi Considering Cyclic Deformation and Load Ratio Effects
复制标题
考虑循环变形和负载比影响的超弹性 NiTi 疲劳建模
DOI:
10.1007/s40830-017-0115-2
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发表时间:
2017
影响因子:
2.2
通讯作者:
Shamsaei, Nima
中科院分区:
文献类型:
--
作者:
Mahtabi, Mohammad J.;Shamsaei, Nima
A cumulative energy-based damage model, called total fatigue toughness, is proposed for fatigue life prediction of superelastic NiTi alloys with various deformation responses (i.e., transformation stresses), which also accounts for the effects of mean strain and stress. Mechanical response of superelastic NiTi is highly sensitive to chemical composition, material processing, as well as operating temperature; therefore, significantly different deformation responses may be obtained for seemingly identical NiTi specimens. In this paper, a fatigue damage parameter is proposed that can be used for fatigue life prediction of superelastic NiTi alloys with different mechanical properties such as loading and unloading transformation stresses, modulus of elasticity, and austenite-to-martensite start and finish strains. Moreover, the model is capable of capturing the effects of tensile mean strain and stress on the fatigue behavior. Fatigue life predictions using the proposed damage parameter for specimens with different cyclic stress responses, tested at various strain ratios (Rε=εmin/εmax) are shown to be in very good agreement with the experimentally observed fatigue lives.
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影响因子:
6
作者:
Gloanec, A. -L.;Cerracchio, P.;Riberty, P.
通讯作者:
Riberty, P.
DOI:
10.1002/9781118426913.ch5
发表时间:
2015-11
期刊:
--
影响因子:
--
作者:
M. Mahtabi;N. Shamsaei;M. Elahinia
通讯作者:
M. Mahtabi;N. Shamsaei;M. Elahinia
影响因子:
7.3
作者:
M. Mahtabi;N. Shamsaei
通讯作者:
M. Mahtabi;N. Shamsaei
DOI:
10.1115/smasis2016-9287
发表时间:
2016
影响因子:
3.9
作者:
A. Amerinatanzi;N. S. Moghaddam;Hamdy Ibrahim;M. Elahinia
通讯作者:
M. Elahinia
影响因子:
3.9
作者:
Tobushi, H;Hachisuka, T;Lin, PH
通讯作者:
Lin, PH