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Accurate predictions of fiber orientation and mechanical properties in long-fiber-reinforced composite with experimental validation

机译:实验验证的长纤维增强复合材料中纤维取向和力学性能的精确预测

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摘要

Mechanical performance of lightweight automotive materials made of long fiber-reinforced thermoplastic composites is potentially superior to that of short fiber. However, accurate prediction of fiber orientation is critical for determining reliable mechanical properties. Thus, we investigate the representative fiber orientation models under simple shear flow and discuss in regard to a variety of long fiber suspensions. In addition, the laminate orientation structure of skin-shell-core pattern predicted in 3D injection molding simulation is quantitatively compared with experimental data measured via the micro-computed tomography. Significantly, we show the effect of fiber orientation states on mechanical properties, including tensile modulus and stress-strain response. POLYM. COMPOS., 39:3434-3445, 2018. (c) 2017 Society of Plastics Engineers
机译:由长纤维增强热塑性复合材料制成的轻质汽车材料的机械性能可能优于短纤维。 然而,精确的纤维取向预测对于确定可靠的机械性能至关重要。 因此,我们在简单的剪切流下研究代表性的纤维取向模型,并在各种长纤维悬浮液中讨论。 此外,与通过微计算机断层扫描测量的实验数据相比,在3D注射成型模拟中预测的皮肤壳芯图案的层压取向结构。 值得注意的是,我们展示了纤维取向状态对机械性能的影响,包括拉伸模量和应力 - 应变反应。 聚合物。 Compos。,39:3434-3445,2018。(c)2017年塑料工程师协会

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