Integration of MAC/GMC into CalculiX, an Open Source Finite Element Code

Yapor Genao, Francisco A ; Pineda, Evan J ; Bednarcyk, Brett A ; Gustafson, Peter A

关键词: COMPOSITE MATERIALS;    COMPOSITE STRUCTURES;    STRUCTURAL ANALYSIS;    MICROMECHANICS;    FINITE ELEMENT METHOD;    ERROR ANALYSIS;    MULTISCALE MODELS;   

RP-ID  :  GRC-E-DAA-TN64310

学科分类：复合材料

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

An analysis framework is presented that makes available multiscale analysis of composite structures using the open-source FEA solver package CalculiX CrunchiX (CCX). At the center of this framework is the coupling of the Finite Element Analysis - Micromechanics Analysis Code (FEAMAC) library from NASA's Micromechanics Analysis Code with Generalized Method of Cells (MAC/GMC) to allow micromechanics analysis. The results show that the proposed coupling can be used with appropriate care for multiscale FEA simulations of composite materials. The largest error reported in this validation was in a four-point bend test specimen with an error of less than 1% difference in the maximum deflection of the beam.