Failure of Composites with Short Fibers

Communications

Milan Zmindak¹  Daniel Riecky¹  Josef Soukup² 

[1] Department of Applied Mechanics, Faculty of Mechanical Engineering, University of Zilina, Slovakia;Department of Machinery and Mechanics, Faculty of Production Technology and Management, Jan Evangelista Purkyne University in Usti nad Labem, Czechia;

关键词: composite structures;    short fibers -reinforced composites;    failure criteria;    failure index;   

DOI  :  10.26552/com.C.2010.4.33-39

来源: DOAJ

【 摘 要 】

Strength-based failure criteria are commonly used with the finite element method (FEM) to predict failure events in composite structures. The laminate analogy is very useful for the calculation of the strength of composite materials with short fibers. The prediction of the laminate strength is carried out by evaluating the stress state within each layer of the laminate based on the classical lamination theory. In this paper FEM is used as a tool to predict the laminate strength. Failure criteria are used to calculate a failure index (FI) from the computed stresses and user-supplied material strengths. The micromechanical analysis has been carried out using computer package MATLAB and numerical simulation has been executed by using a commercially available ANSYS code.

【 授权许可】

Unknown