[探讨]请教一些有限元法的问题 [复制链接]

各位老师好 我是一名在读学生 yffg_^fR  
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请问一下 如何用有限元法对一些典型非线性钢结构 建模和模拟

就结构设计问题，日本现在退回到只考虑材料弹性变形状态的设计了，很保守哦。

钢结构的节点的确比较麻烦，我同学搞的一个钢结构厂房，居然有150张A1图纸，呵呵。

I remember the joint design in steel design course is the most important part because the frame part is belong to structure. Nn`l+WA3  
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We always design the plate or joint: how to connect two member? what's  the plate geometry ? which type of connections:screw type or  weld type? QJeL&mf  
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Recently, the steel design is developing so fast in China. Need more research and study for that!

细节问题（节点问题）的确是关键。 .dbZ;`s  
在数值分析中，要么胶接要么刚节，比较极端，实际上的节点介于两者之间。

I mean Ansys is good for the structure analysis(for the frame). Ht{Q=w/9  
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Actually, the joint (plate) design in steel design is very critical, u may pay more attention to that. hggP9I:s,  
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SAP is almost the same as Ansys.

各位大大们 我知道您们都巨忙 C>MEgGP  
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能不能直接用100字回答我的问题啊 }ldOxJSB?  
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指本肯定有答案的书给我 我自己去找也可以啊

Maybe  SAP  is a  good tool for your problem. 

引用第4楼mano于2007-08-23 15:03发表的  : MVYf-'\^
  
Be careful, the steel design for the special plate may not suitable by using analysis even if the steel structure can be designed by analysis.

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居然有此事？我一直觉得用Ansys分析结构没有问题。 rE5q BEh  
我们国内得很多钢结构项目都是用Ansys分析得，会不会有隐患啊？

做结构分析，我也认为ansys是相当不错的，尤其的是它的建模功能！

.. then how to simulater some typical nonliearities of steel structure with FEM

Be careful, the steel design for the special plate may not suitable by using analysis even if the steel structure can be designed by analysis.