INVESTIGADORES
OLLER  Sergio Horacio Cristobal
congresos y reuniones científicas
Título:
NUMERICAL ANALYSIS OF COMPOSITE MATERIALS AND STRUCTURAL PARTS FOR AUTOMOTIVE APPLICATIONS
Autor/es:
O. SALOMON; F. RASTELLINI; S. OLLER; E. OÑATE
Reunión:
Congreso; International congress Transfac '06 : innovative solutions for the advancement of the transport industry - 2006; 2006
Resumen:
The objective of this work is to present the applicability of a recent formulated methodology for non-linear analysis of composite materials to long fibre reinforced laminates (and structures made of them) proposed by the automotive industry [1].The methodology recently developed by the authors [2,3] is able to analyze the material nonlinear behaviour of composite laminates constituted by a matrix reinforced with unidirectional long fibres. This methodology is based on the use of constitutive laws for the component materials jointly with ?closure equations? taken into account the composite morphology. Each phase (matrix, fibres) is modelled individually using an appropriate continuum constitutive law (elastic, elasto-plastic, damage, etc.) while the global response is obtained from all phases contributions considering the interactions between components.This approach has been implemented in a general-purpose finite element code (COMET) [4] and a user-friendly interface for composite material data input in a pre-post processing module (GiD) [5] has been developed.Analysis of long fibre (carbon, glass and hybrid) reinforced laminates (with epoxy matrix)proposed by the automotive industry in a recent concluded research project [1] are used to show the relevance of this technology. Numerical results are compared with experimental ones performed on material samples at Institute for Static and Dynamics (ISD), University of Stuttgart, and at Dipartimento di Meccanica, Politecnico di Torino (POLITO) on structural parts (composite tubular joints) provided by ITALDESIGN ? GIUGIARO.