| 摘要 |
PROBLEM TO BE SOLVED: To provide an impact analysis method, capable of accurately realizing impact analysis on complex deformation processes of resin parts. SOLUTION: In the impact analysis method, physical property values indicating mechanical properties of resin materials are set in an analysis program, to evaluate the impact characteristics of resin molded bodies and their failure behaviors. As a failure determination method for determining failure of the resin molded bodies, a ductile failure conditional expression is used to determine the failure. A ductile failure conditional expression, in which stress multi-axiality can be taken into consideration, may be used. Deformation speed dependence may be taken into consideration, in the ductile failure conditional expression for dealing with viscoelasticity characteristics to resins. COPYRIGHT: (C)2007,JPO&INPIT
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