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各向异性材料中二维X射线诱导热击波的数值模拟

DOI: 10.11858/gywlxb.2011.01.007, PP. 41-47

Keywords: X射线,热击波,各向异性材料,本构关系,物态方程

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Abstract:

建立了正交各向异性材料二维率相关的弹塑性本构模型,采用有限元方法编写程序,对X射线辐照各向异性材料碳酚醛平板时诱导的热击波进行了二维数值模拟,讨论了热击波的传播规律。结果表明,在软X射线和硬X射线的辐照下,材料中的X射线热击波表现出不同的形貌,材料中热击波形成的机理、热击波峰值、X射线穿透深度、汽化现象、拉伸强度等方面均存在很大差异。

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