Weld Modeling with MSC.Nastran

sunnygu

A new general purpose connector element has been developed in MSC.Nastran. The element models
the global load transfer in spot weld and seam weld connections. The weld element has a physical
stiffness. Constraint equations are generated internally. The resulting element stiffness is always of proper
rank. The user does not have to take precautions for in plane rotations in shells. Three types of
connections can be defined with the new weld element, point to point, point to patch, and patch to
patch. The connected elements can be of different type. The meshes do not have to be congruent. The
user can request that the weld element is generated without explicit constraints, thereby avoiding the
costly elimination of m-set degrees of freedom and increasing the performance for large models.

sunnygu

另外一篇
其他软件的使用
http://forum.simwe.com/viewthread.php?tid=899039&highlight=Spot%2BWeld

http://forum.simwe.com/thread-939761-1-1.html

http://forum.simwe.com/viewthread.php?tid=936621&extra=&highlight=Spot%2BWeld&page=1

sunnygu

欢迎大家做做试试。然后和分析计算的数据比较一下

mabaojun

谢谢了楼主的