【分享】Jinjinhao斑竹请进:
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回复: 【分享】Jinjinhao斑竹请进:
我觉得不需要重启动。如果要在后处理看其相对于100时刻的位移分布,可以采用Response-combined方式。回复: 【分享】Jinjinhao斑竹请进:
问题是这样与实际不符啊,实际情况是:只加重力荷载的时候存在地应力,但是不存在变形.回复: 【分享】Jinjinhao斑竹请进:
你现在看到的变形都是以加上重力后平衡状态的,因此应该就是需要的东西。回复: 【分享】Jinjinhao斑竹请进:
有限元有个初始构形的概念,实际上相对位移的处理即将100时刻的网格作为初始构形了,也就是说100时刻的变形为零,应力即为地应力。回复: 【分享】Jinjinhao斑竹请进:
哦,明白了,多谢看来我的理论还要多多加强啊
回复: 【分享】Jinjinhao斑竹请进:
因为我不懂ADINA。能解释一下在上面的命令流中,哪几句是限制边界和初始条件的,
其实际作用是什么。
(顺便说一句,你们ADINA版的人好热情,后悔当初选用FLAC来模拟基坑开挖。)
回复: 【分享】Jinjinhao斑竹请进:
BosFEA 的这个模型是轴对称的,底边固定,侧边在垂直方向自由.初始条件就是重力荷载.FIXBOUNDARY LINES FIXITY=ALL
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回复: 【分享】Jinjinhao斑竹请进:
他这个模型是否是三维的?我的模型是这样考虑的:
基坑长宽均为40m,深10m, 计算域取影响范围为基坑深度的4倍,
考虑对称性,取1/4建模。实际模型长宽均为60m,深50m。
我的边界条件是两竖直对称面上,垂直于对称面方向的水平位移为零。
两外边界面上,两个方向的水平位移都为零。
底面三个方向的位移都为零。
初始应力为自重应力。
我这么考虑对吗?
(问一句,你们的边界面上有没有加边界应力?)
回复: 【分享】Jinjinhao斑竹请进:
我觉得你的边界条件没什么毛病回复: 【分享】Jinjinhao斑竹请进:
eplier的边界条件应该也是对的。
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