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首页> 外文期刊>Journal of Applied Polymer Science >Influence of microstructure and morphology on stress-strain behavior of commercial high density polyethylene
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Influence of microstructure and morphology on stress-strain behavior of commercial high density polyethylene

机译：微观结构和形态对商品高密度聚乙烯应力应变行为的影响

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摘要

In the previous paper (Zahedi et al.,(1) Appl Polym Sci, to appear) the optimal conditions of a new modeling procedure for correlating a scalar response to an input spectrum were established. In this article the developed model is applied to correlate the stress-strain behavior of several commercial high density polyethylene samples to the spectrums of microstructure and morphology. Molecular weight and lamellar thickness distributions were considered as the input Spectrums and Young modulus, Stress and strain at the yield and break points were considered as the objective responses. The shape of the kernel functions over molecular weight and lamellar thickness distribution spectrums for each mechanical property gives an explanation of how different regions of the spectrums contribute to create the considered property. The simplicity of the procedure facilitates the interpretation of the complex influences and interactions of different structured and morphologies in various aspects of the mechanical performance of the samples. The proposed model can be used in designed experiments with samples of controlled microstructure and morphology to provide detailed information about the structure-property relationships. (C) 2008 Wiley Periodicals, Inc.
机译：在以前的论文（Zahedi等人，（1）Appl Polym Sci出现）中，建立了将标量响应与输入光谱相关联的新建模程序的最佳条件。在本文中，已开发的模型用于将几种商业高密度聚乙烯样品的应力应变行为与微观结构和形态谱相关联。分子量和层状厚度分布被认为是输入光谱，杨氏模量，屈服点和断裂点处的应力和应变被认为是客观响应。对于每种机械性能，内核函数的形状在分子量和层状厚度分布光谱上均能说明光谱的不同区域如何有助于创建所考虑的性能。程序的简单性有助于解释样品机械性能各个方面中不同结构和形态的复杂影响和相互作用。所提出的模型可用于设计实验中，其样品具有受控的微观结构和形态，以提供有关结构-性质关系的详细信息。 （C）2008 Wiley期刊公司

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