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NUMERICAL ANALYSIS OF COMPOSITE MATERIALS ANDSTRUCTURAL PARTS FOR AUTOMOTIVE APPLICATIONS

机译：汽车用复合材料和结构零件的数值分析

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摘要

The objective of this work is to present the applicability of a recent formulated methodology forrnnon-linear analysis of composite materials to long fibre reinforced laminates (and structures madernof them) proposed by the automotive industry [1].rnThe methodology recently developed by the authors [2,3] is able to analyze the material non-linearrnbehaviour of composite laminates constituted by a matrix reinforced with unidirectionalrnlong fibres. This methodology is based on the use of constitutive laws for the componentrnmaterials jointly with ‘closure equations’ taken into account the composite morphology. Eachrnphase (matrix, fibres) is modelled individually using an appropriate continuum constitutive lawrn(elastic, elasto-plastic, damage, etc.) while the global response is obtained from all phasesrncontributions considering the interactions between components.rnThis approach has been implemented in a general-purpose finite element code (COMET) [4] andrna user-friendly interface for composite material data input in a pre-post processing module (GiD)rn[5] has been developed.rnAnalysis of long fibre (carbon, glass and hybrid) reinforced laminates (with epoxy matrix)rnproposed by the automotive industry in a recent concluded research project [1] are used to showrnthe relevance of this technology. Numerical results are compared with experimental onesrnperformed on material samples at Institute for Static and Dynamics (ISD), University of Stuttgart,rnand at Dipartimento di Meccanica, Politecnico di Torino (POLITO) on structural parts (compositerntubular joints) provided by ITALDESIGN – GIUGIARO.
机译：这项工作的目的是提出一种用于汽车行业[1]提出的用于复合材料非线性分析的复合材料对长纤维增强层压板（及其制造的结构）进行非线性分析的方法的适用性。 [2，3]能够分析由单向长纤维增强的基质构成的复合层压板的材料非线性行为。该方法基于对成分材料使用本构定律，并结合“闭合方程”，并考虑了复合材料的形态。使用适当的连续本构定律（弹性，弹塑性，损伤等）分别建模每个相（基体，纤维），同时考虑各组件之间的相互作用从所有相的贡献中获得全局响应。用途的有限元代码（COMET）[4]和rna用户友好的界面，用于在预后处理模块（GiD）rn [5]中输入复合材料数据。rn长纤维（碳纤维，玻璃纤维和混合纤维）的分析汽车工业在最近完成的一项研究项目[1]中提出的增强层压板（带有环氧树脂基体）被用来证明该技术的相关性。将数值结果与由ITALDESIGN – GIUGIARO提供的结构零件（复合管状接头）在斯图加特大学静态和动力学研究所（ISD）的材料样品上进行的实验结果进行了比较。

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  • 来源
  • 会议地点 San Sebastian(ES);San Sebastian(ES)
  • 作者

    Omar SALOMON; Fernando Rastellini; Sergio Oller; Eugenio Onate;

  • 作者单位

    International Center for Numerical Methods in Engineering (CIMNE)e-mail: salomon@cimne.upc.edu, phone:+34 93 401 56 69, fax:+34 93 401 10 48;

    International Center for Numerical Methods in Engineering (CIMNE)frastel@cimne.upc.edu;

    International Center for Numerical Methods in Engineering (CIMNE)Departamento de Resistencia de Materiales y Estructuras en la Ingeniería.rnUniversidad Politécnica de Catalu?a (UPC)rnBuilding C1, Campus Norte UPCrnGran Capitán, S/N. 08034 Barcelona, Spainoller@cimne.upc.edu;

    International Center for Numerical Methods in Engineering (CIMNE)Departamento de Resistencia de Materiales y Estructuras en la Ingeniería.rnUniversidad Politécnica de Catalu?a (UPC)rnBuilding C1, Campus Norte UPCrnGran Capitán, S/N. 08034 Barcelona, Spainonate@cimne.upc.edu;

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