Study of method for full hexahedral grid meshing based on FEM elastic deform operation
JI Hong-guang · Jisuan lixue xuebao · 2011
A new simple method for hexahedral mesh generation is proposed based on the mapping method and authors' experiences on FEM meshing.Firstly,the initial grid is selected according to the contour of the body.Secondly,this grid is forced to deform so that all surface nodes can reach the destination surfaces,and then,the locations of the internal nodes are determined by FEM calculations under elasticity condition.Finally,after checking the quality of all elements,the target grid can be constructed by adjusting distorted elements.In order to validate the proposed technique,a full hexahedral grid is built for a complex shaft ingate model.The feasibility of the present method is fully proved.