Making use of the arithmetic expression which it disperses converts the primitive equation system which

摘要

PROBLEM TO BE SOLVED: To attain the higher speed and more precise deformation analysis of a non-compression Mooney-Rivlin super-elastic body by a sectional pattern finite element method.;SOLUTION: A reduction invariant is introduced to a configuration equation, and the initial value of an inconstant pressure before deformation is turned into zero. The basic equation of a non-compression Mooney-Rivlin ultra-elastic body is made discrete by a GSMAC finite element method being a sectional pattern finite element method. As for a speed, a time is approximated by secondary precision according to the idea of an Newmark-β method. An inconstant pressure p in each time is decided so that div v=0 can be satisfied (div v is the divergence of v). The initial value of a predictor is decided based on the status value of each time, and the repeated calculation of the predictor is operated by a simultaneous smoothing method until the predictor converges. The value of the converging predictor is defined as the status value of the next time. This calculation is repeated so that the deformation of the ultra-elastic body can be analyzed.;COPYRIGHT: (C)2006,JPO&NCIPI