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Irreversible thermodynamics theory for damage mechanics of solids

机译:固体破坏力学的不可逆热力学理论

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The entropy production is a non-negative quantity based on irreversible thermodynamics andthus can serve as a basis for the systematic description of the irreversible processes occurring in a solid. In thispaper, a thermodynamic framework has been presented for damage mechanics of solids materials, where entropyproduction is used as the sole measure of damage in the system. As a result, there is no need for physically meaninglessempirical parameters to define a phenomenological damage potential surface or a Weibull function totrace damage evolution in solid continuum. In order to validate the model, predictions are compared with experimentalresults, which indicates that entropy production can be used as a damage evolution metric. The theoryis founded on the basic premise that a solid continuum obeys the first and the second laws of thermodynamics.
机译:熵的产生是基于不可逆热力学的非负量,并且 因此可以作为系统描述固体中不可逆过程的基础。在这个 在论文中,提出了一种热力学框架,用于固体材料的损伤力学,其中熵 生产是系统损坏的唯一度量。结果,没有必要在身体上毫无意义。 经验参数来定义现象学潜在破坏面或Weibull函数以 跟踪固体连续体中的损伤演化。为了验证模型,将预测与实验进行了比较 结果表明,熵产生可以用作损伤演化度量。理论 建立在一个基本的前提下,即一个连续体遵守热力学的第一定律和第二定律。

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