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发表于 2004-5-12 22:30:58
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来自 北京
回复: 【寻找】哪位大侠能否告诉在下混凝土中的EPS0通常是多少?谢谢
H-J-C模型
该模型主要应用于高应变率、大变形下的混凝土模拟。在DYNA中H-J-C模型的定义方式为:*MAT_JOHNSON_HOLMGUIST_CONCRETE,材料编号为111。
H-J-C模型综合考虑了大应变、高应变率、高压效应,其等效屈服强度是压力、应变率及损伤的函数,而压力是体积应变(包括永久压垮状态)的函数,损伤积累是塑性体积应变、等效塑性应变及压力的函数。
下面是一个例子:
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
$H-J-C g-cm-us
*MAT_JOHNSON_HOLMQUIST_CONCRETE
2,2.4,0.1486,0.79,1.60,0.007,0.61,0.00048
4e-5,1e-6,0.01,7.0,0.00016,0.001,0.0080,0.10
0.04,1.0,0.85,-1.71,2.08
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ |
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