Three-Dimensional Finite Element Analysis for Compression Molding of Step-Type Random/Unidirectional Polymer Composite Laminates

단부형상을 갖는 무배향/일방향 복합적층판의 압축성형에 있어서 3차원 유한요소해석

Fiber reinforced plastic composites is widely used to make be lightening of aircraft and automotive owing to having high specific strength and specific modulus. And it is very important to know a charge shape in order to have good products in the compression molding. In particular, the product such as a bumper beam is composed of the random and unidirectional composite mats. Its deformation and charge shape are very different by stack type of random and unidirectional mats. In this paper, the characteristics of flow fronts such as a bulging phenomenon for step-type random/unidirectional composite mats and slip parameters are studied numerically. And the effects of viscosity ratio and stack type on the mold filling parameters are also discussed.