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文件名称：Shear Locking.pdf
文件大小：84KB
文件格式：PDF
更新时间：2012-12-09 10:04:18
剪切自锁
关于铁摩辛柯梁发生剪切自锁的
What is Locking?
Unfortunately, a unique, rigorous definition of locking does not seem to exist. From a most
simple an general point of view one could state that
Locking means the effect of a reduced rate of convergence for coarse meshes in
dependence of a critical parameter.
For example, in the case of transverse shear locking of plate elements this parameter is the
slenderness of the plate, in volumetric locking it is the bulk modulus. An optimal rate of con-
vergence, as predicted by mathematical error analysis for elements of a certain polynomial
order, is not achieved until the element size falls below a certain limit. As this limit is often
beyond available computer capacities there is a strong interest to avoid such locking effects