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首页> 外文会议>Fourth International Conference on Materials Processing Defects; Sep 24-26, 2002; Cachan, France >Analysis of the Interply Porosities in Thermoplastic Composites Forming Processes
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Analysis of the Interply Porosities in Thermoplastic Composites Forming Processes

机译：热塑性复合材料成型过程中的孔隙率分析

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摘要

The experimental analysis of the forming of a thermoplastic composite has shown the existence of porosities induced by the process and the importance of the re-consolidation phase. To simulate this compaction stage a shell element with pinching is presented. This element has a degree of freedom in the thickness and give the stress and strain through-the-thickness. The computation gives compressive through-the-thickness stresses in the zones where the experiments have shown that the laminate is consolidated; for instance, in the curved parts during the forming stage. The practical efficiency of the approach depends on the compaction constitutive relation that will have now to be investigated.
机译：对热塑性复合材料形成过程的实验分析表明，存在由该过程引起的孔隙，并且表明了固结阶段的重要性。为了模拟该压实阶段，提出了具有收缩的壳单元。该元件在厚度上具有一定程度的自由度，并在整个厚度范围内提供应力和应变。计算结果表明，在实验表明层压板已固结的区域中，厚度方向的压应力很大。例如，在成型阶段的弯曲部分。该方法的实际效率取决于现在将要研究的压实本构关系。

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