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首页> 外文期刊>Journal of thermal stresses >Approximate model of thermal resoidual stress in an injection moleded part
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Approximate model of thermal resoidual stress in an injection moleded part

机译:注塑零件中的热残余应力的近似模型

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摘要

A description and model of the thermally induced residual stress that forms in a "plate- like" injected molded polymer part is outlined. A linear heat balance integral (LHBI) temperature profile approximation and the concept of a virtual adjunct mold (VAM) is used to arrive at an approximate algebraic model that, upon providing material prop- erties and processing conditions, gives an immediate evaluation of the residual stress through the plate thickness. Results obtained with this model are in very close agree- ment with a full numerical solution and agree closely with experimental measurements made on a range of starch-based biodegradable polymer samples.
机译:概述了在“板状”注模聚合物部件中形成的热感应残余应力的描述和模型。线性热平衡积分(LHBI)温度曲线近似和虚拟辅助模具(VAM)的概念用于得出近似代数模型,该模型在提供材料特性和加工条件后,可以立即评估残余物应力穿过板的厚度。通过该模型获得的结果与完整的数值解非常吻合,并且与对一系列基于淀粉的可生物降解聚合物样品的实验测量结果非常吻合。

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