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沥青混合料损伤演化的多尺度模拟

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Keywords: 道路工程,沥青混合料,多尺度模拟,损伤演化,有限元,力学性能

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Abstract:

?为了全面分析沥青混合料的力学性能,了解沥青混合料的力学响应,引入了有限元多尺度计算方法,通过分析沥青混合料在较小尺度范围内出现的特征和现象,将细观和宏观的方法结合起来,模拟沥青混合料在荷载作用下的力学性能(包括损伤演化过程),从而有效实现不同尺度模型间的变形协调。结果表明:该模型能定性地模拟沥青混合料的力学性能,分析不同组成成分的结合以及通过计算评价沥清混合料的性能。

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