Prediction of the effective characteristics of freeze-resisting polymeric compositions and reliability estimation of products on their basis

2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS) Pub Date : 2015-12-01 DOI:10.1109/MEACS.2015.7414912

S. Bochkareva, B. A. Ljukchin, Y. Reutov, A. Reutov

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Abstract

Freeze-resisting polypropylene is a composition based on polypropylene filled by butyl rubber inclusions. Work presents two-dimensional and three-dimensional models of representative volume consisting of polypropylene matrix with various quantity, size and collocation of butyl rubber inclusions. Effective characteristics of freeze-resisting polypropylene are obtained based on the information about deformation-strength characteristics of polypropylene matrix and butyl rubber inclusions. Comparison of calculated effective deformation-strength characteristics and experimental data for freeze-resisting polypropylene is carried out. Mean value and standard deviation of the effective Young's modulus and yield strength for the freeze-resisting polypropylene with the degree of filling by butyl rubber of 10% are defined. Stress-strain state calculation of a detail made of frost-resisting polypropylene with a steel insert is carried out using ANSYS software. The probability of failurefree operation at temperature from +20 to -60 °C and under additional axial load is estimated.

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抗冻聚合物组合物有效特性预测及在此基础上产品可靠性评估

抗冻聚丙烯是一种由丁基橡胶内含物填充的以聚丙烯为基础的组合物。作品呈现了由聚丙烯基体组成的具有不同数量、尺寸和丁基橡胶夹杂物搭配的代表性体积的二维和三维模型。根据聚丙烯基体和丁基橡胶夹杂物的变形强度特性信息，得出了抗冻聚丙烯的有效特性。对抗冻聚丙烯的有效变形强度特性计算结果与试验数据进行了比较。定义了丁基橡胶填充量为10%的抗冻聚丙烯的有效杨氏模量和屈服强度的平均值和标准差。利用ANSYS软件对某钢嵌段抗冻聚丙烯细部进行了应力应变状态计算。在+20至-60°C的温度和额外的轴向载荷下，估计无故障运行的概率。

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2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)

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