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基于CT技术和有限元方法的沥青混合料数值蠕变试验研究

, PP. 123-127

Keywords: 沥青混合料,蠕变,XrayCT,有限元方法,数字图像

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Abstract:

考察沥青混合料黏弹性的试验方法较多,在处理疲劳破损时,通常采用蠕变试验.其中,单轴静载蠕变试验被大量用于分析沥青混合料的黏弹性能,但是室内蠕变试验对试验仪器精度要求较高,而且耗费大量时间、人力和财力.WANGLB[1]提出利用CTXray技术(CT技术)、有限元或离散元数值工具及高效率的计算手段,对材料性能进行数值模拟以节省大量成本.因此,基于CT技术和有限元方法或离散元方法,建立反映材料真实内部结构的非均质数值模型成为分析沥青混合料性能的研究趋势.

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