High-temperature behaviour of IN 738 LC under isothermal and thermo-mechanical cyclic loading
High-temperature behaviour of IN 738 LC under isothermal and thermo-mechanical cyclic loading
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IN 738 LC 在等温和热机械循环载荷下的高温行为
DOI：
10.1016/s0921-5093(97)00025-7
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发表时间：
1997
期刊：
影响因子：
--
通讯作者：
J. Olschewski
中科院分区：
文献类型：
--
作者：
H. Frenz;J. Meersmann;J. Ziebs;H. Kühn;R. Sievert;J. Olschewski
研究了IN 738液晶的循环行为与温度的关系.循环等和非等温试验进行了比例和非比例的拉伸/扭转应变路径。结果表明，等温应变控制试验中测得的最大和最小应力值与非等温试验结果相当一致。采用基于粘塑性Chaboche模型的热力学本构方程描述非等温应力-应变行为。
The temperature dependence of the cyclic behavior of IN 738 LC was studied. Cyclic iso- and non-isothermal tests were performed with proportional and non-proportional tension/torsion strain paths. It was shown that maximum and minimum stress values measured in isothermal strain controlled tests correspond quite well with results of non-isothermal tests. Thermal-mechanical constitutive equations based on the viscoplastic Chaboche model were used to describe the non-isothermal stress-strain behavior.