The basic idea is to use the finite element method and thought variational principle of virtual displacement, fragmentation approximated by approximation overall ideas, Approximate Solution
The basic idea of finite element method is to solve the problem by using the idea of variable division and the principle of virtual displacement, by the idea of shard approximation and approaching the whole.
The basic idea of the finite element method is to use the idea of variation and the principle of virtual displacement to approximate the solution through the idea of slice approximation and approximation of the whole<br>