Finite element modeling of polymer curing in natural fiber reinforced composites
Finite element modeling of polymer curing in natural fiber reinforced composites
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DOI：
10.1016/j.compscitech.2006.06.021
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发表时间：
2007-06-01
影响因子：
9.1
通讯作者：
Sain, M.
中科院分区：
文献类型：
--
作者：
Behzad, T.;Sain, M.
植物基纤维由于其良好的力学性能和环保优势，已被选为适合复合材料的增强材料。开发了一种模拟程序来预测大麻纤维/热固性复合材料在成型过程中的温度分布和固化行为。给出了非线性非稳态传热和树脂固化动力学的控制方程。采用通用的多物理有限元程序包。应用该程序对一维和三维模型进行了数值模拟。通过实验对模拟结果进行了验证。实验数据表明，数值模拟方法是有效的、稳定的，能够提供较为准确的预测结果。对汽车零件的三维复杂几何形状进行了数值模拟，以预测复合材料在成型过程中的温度分布和固化行为。(C)2006爱思唯尔有限公司。保留所有权利。
Plant-based fibers have been selected as suitable reinforcements for composites due to their good mechanical performances and environmental advantages. This paper describes the development of a simulation procedure to predict the temperature profile and the curing behavior of the hemp fiber/thermoset composite during the molding process. The governing equations for the non-linear transient heat transfer and the resin cure kinetics were presented. A general purpose multiphysics finite element package was employed. The procedure was applied to simulate one-dimensional and three-dimensional models. Experiments were carried out to verify the simulated results. Experimental data shows that the simulation procedure is numerically valid and stable, and it can provide reasonably accurate predictions. The numerical simulation was performed for a three-dimensional complex geometry of an automotive part to predict the temperature distribution and the curing behavior of the composite during the molding, process. (c) 2006 Elsevier Ltd. All rights reserved.