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Thermoelastoplastic Behavior of a HSLA Steel Plate Subjected to Low-Velocity Impact
The thermoelastoplastic behavior of a high strength low alloy (HSLA) steel plate subjected to low-velocity impact is investigated in this paper. A yield criterion related to the spherical tensor of stress is proposed to describe the mixed hardening of the orthotropic material. Based on the classical nonlinear thin plate theory, the incremental nonlinear motion equations are obtained, and are solved by the combination of finite difference method and Newmark method with iterations. To explain the contact process, a thermoelastoplastic contact criterion is developed, of which the validity has been proved. Numerical results show that the radius of the impactor, initial impact velocity, environment temperature, and the thickness of the HSLA steel plate all have great influences on the thermoelastoplastic behavior of the HSLA steel plate subjected to low-velocity impact.
Thermoelastoplastic Behavior of a HSLA Steel Plate Subjected to Low-Velocity Impact
The thermoelastoplastic behavior of a high strength low alloy (HSLA) steel plate subjected to low-velocity impact is investigated in this paper. A yield criterion related to the spherical tensor of stress is proposed to describe the mixed hardening of the orthotropic material. Based on the classical nonlinear thin plate theory, the incremental nonlinear motion equations are obtained, and are solved by the combination of finite difference method and Newmark method with iterations. To explain the contact process, a thermoelastoplastic contact criterion is developed, of which the validity has been proved. Numerical results show that the radius of the impactor, initial impact velocity, environment temperature, and the thickness of the HSLA steel plate all have great influences on the thermoelastoplastic behavior of the HSLA steel plate subjected to low-velocity impact.
Thermoelastoplastic Behavior of a HSLA Steel Plate Subjected to Low-Velocity Impact
Jiang, Hao-Jie (author) / Dai, Hong-Liang / Zhu, Kai / Fu, Yi-Ming
2015
Article (Journal)
English
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