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A new procedure for Finite Element simulation of forming process of non-homogeneous composite laminates and FMLs

机译：非均质复合材料层板和FML成形过程有限元模拟的新程序

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摘要

A new method is presented to model the interactions between aluminum/composite and composite/composite layers in the Finite Element Method (FEM) simulation of forming processes of Fiber Metal Laminates (FMLs) and inhomogeneous composite laminates. Finite Element simulation is based on a thermo-viscoelastic material model. The method divides the composite laminates and FMLs into continuum and homogeneous aluminum and composite layers and polymeric layers between them. The polymeric layer has a rigid contact to the aluminum and composite layers and its shear strains result in relative displacements of the laminates and creates the required deformations. The method is applied to a press forming simulation of composite laminates (PVC/woven glass fabric) and related FMLs at 140 degrees C and 160 degrees C. The simulation is carried out using ABAQUS explicit FE package and the results of mechanical and thermal simulations are compared with experimental results. The results demonstrate the accuracy of this method that models the interactions in the forming simulations of composite laminates and FMLs. (C) 2016 Published by Elsevier Ltd.
机译：提出了一种新方法来模拟铝/复合材料与复合材料/复合材料层之间的相互作用，方法是对纤维金属层压板（FML）和非均质复合材料层压板的成型过程进行有限元模拟（FEM）。有限元模拟基于热粘弹性材料模型。该方法将复合层压板和FML分为连续体和均质铝以及它们之间的复合层和聚合物层。聚合物层与铝层和复合层具有刚性接触，其剪切应变会导致层压板的相对位移并产生所需的变形。该方法应用于复合层压板（PVC /玻璃纤维织物）和相关FML在140摄氏度和160摄氏度下的冲压成型仿真。该仿真是使用ABAQUS显式有限元软件包进行的，机械和热仿真结果为与实验结果相比。结果证明了该方法的准确性，该方法可以对复合材料层压板和FML成形模拟中的相互作用进行建模。 （C）2016由Elsevier Ltd.出版

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