金属在复杂载荷下的性能表现

R. Abirov
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引用次数: 0

摘要

目前许多塑性问题都没有可靠的解决方案。这与在基于经典塑性理论的理论计算中,没有考虑机体加载过程的复杂性有关。有时这会导致严重的错误。对于等温过程中具有硬体约束(金属,合金等)的塑性,所描述的加载过程的泛函不依赖于时间。然而塑性本构关系中的泛函也应依赖于加载历史。在实际应用中,对于某些类型的复杂加载过程,可以在实验中找到它们。通过对材料的实验研究,给出了函数的一些基本性质。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
On metals’ properties manifested under complex loading
At present many plasticity problems do not have a reliable solution. It is connected to the fact that in the theoretical calculations, based on the classical plasticity theories, a complexity of the process of loading of body is not considered. Sometimes this leads to significant errors. For plasticity with scleronome constraints (metals, alloys, etc.) at isothermal processes the functionals that were described of loading process do not depend on time. However the functionals in constitutive relations in plasticity should be also dependent on loading history. At practice, they can be found for some classes of complex loading processes experimentally. Some fundamental properties of functionals via experimental investigations of materials are presented here.
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