Free Energy of Damaged Solids

机译：损坏固体的自由能

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This paper examines the free energy potentials of damaged solids for the construction of damage mechanics constitutive models. The physical meaning of free energy in solid mechanics is analyzed in contrast with that in traditional fields of thermodynamics;;1D stress-strain curves are used to show the relationships between various thermodynamic state functions in isothermal loading processes;;and the role of plastic free energy in damage evolution is discussed both macroscopically and microscopically. It is concluded that plastic free energy, which is a macroscopic representation of some additional microscopic elastic energy, cannot do work during unloading but get released when damage takes place, constituting part of the driving force for damage evolution.

机译：本文研究了损坏机械结构型模型造成损坏固体的自由能源。与传统的热力学领域相比，分析了固体力学中自由能量的物理含义; 1D应力 - 应变曲线用于显示等温加载过程中各种热力学状态功能之间的关系;和塑料自由的作用在宏观和微观上讨论损伤进化中的能量。结论是，塑性自由能量是一种额外的微观弹性能量的宏观表示，不能在卸载期间工作，但是当损坏发生时会释放，构成损坏进化的一部分驱动力。

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来源
《International Conference on Intelligent System and Applied Material》|2014年||共6页
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作者
ZHANG Ji;
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原文格式 PDF
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中图分类 TB3-532;
关键词
solid; damage; plasticity; free energy; energy release;

机译：坚实;损伤;可塑性;自由能;能量释放;

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Free Energy of Damaged Solids

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