DYNA Users Conference Session : Fluid Structure Interaction 1-1 Advanced Simulation of Polymer Composite SMC Compression Molding using Fluid-Structure Interaction in LS-DYNA ®
DYNA Users Conference Session : Fluid Structure Interaction 1-1 Advanced Simulation of Polymer Composite SMC Compression Molding using Fluid-Structure Interaction in LS-DYNA ®
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DYNA 用户大会会议：流固耦合 1-1 在 LS-DYNA ® 中使用流固耦合进行聚合物复合材料 SMC 压缩成型的高级模拟
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
M. Maier
中科院分区：
文献类型：
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作者：
D. Schommer;M. Duhovic;F. Gortner;M. Maier
热固性板材模塑复合材料(SMC)作为轻质建筑材料在汽车工业中越来越受到人们的青睐。SMC模压成型是将预切好的SMCPrepreg放入加热的模具中，在固化前首先将其压制成型的成型工艺。SMC的流动行为可以用压力流变仪来表征。在典型的压力机流变性测试中，在测试过程中会记录特定的数据，特别是压力、合刀速度、位置和时间，以及已知的模具几何形状(板面面积)，以使用相关的任意拉格朗日欧拉(ALE)材料模型在LS-DYNA中开发和验证有限元表征模型。本文利用LSDYNA中的流体结构相互作用(FSI)功能来模拟SMC材料的流动能力。没有考虑树脂固化对材料流变性的独立影响。作为复杂实件成形的实例，分析了带肋汽车扰流板试验件完全合模后的模压成型过程。
Thermoset Sheet Molding Compounds (SMC) are becoming more and more popular as lightweight construction materials in the automotive industry. SMC compression molding is a forming process in which a pre-cut SMCPrepreg is placed within a heated mold and is first pressed into shape before being cured. The flow behavior of the SMCs can be characterized by press rheometry. In a typical press rheometry test, certain data are recorded during the test, specifically press force, tool closing speed, position and time together with the known tooling geometry (plate surface area), are used to develop and verify a finite element characterization model in LS-DYNA using the relevant Arbitrary Lagrange Eulerian (ALE) capable material model. In this work, the Fluid Structure Interaction (FSI) capabilities in LSDYNA are used to model the flow ability of the SMC material. No independent effects of the resin cure on the materials rheology are taken into consideration. As an example for forming a complex real part, the compression molding of a ribbed automotive spoiler test part is analyzed upon complete closing of the mold.