ABSTRACT

In this study, the short fiber jute-polypropylene (PP) composite simulation was attempted using extended finite element technique. The simulation parameters required for the study were determined from the experimental findings. Special fixtures were developed to determine tensile strength of jute fiber bundle and the interfacial strength of jute fiber-PP matrix. The developed model has been used to study the influence of aspect ratio, fiber volume fraction, and fiber orientation on the modulus of short jute fiber-PP composite. The predicted values of modulus from simulation model were observed to be in agreement with Halpin-Tsai model within the error range of 0.56 to 1.02%. The model forms a base to study the progressive damage occurring in natural fiber composites.

摘要

在这项研究中，尝试使用扩展有限元技术对短纤维黄麻-聚丙烯 (PP) 复合材料进行模拟。研究所需的模拟参数由实验结果确定。开发了专用夹具来测定黄麻纤维束的抗拉强度和黄麻纤维-PP基体的界面强度。所建立的模型已用于研究长径比、纤维体积分数和纤维取向对黄麻短纤维-PP复合材料模量的影响。观察到模拟模型的模量预测值与 Halpin-Tsai 模型一致，误差在 0.56% 到 1.02% 之间。该模型为研究天然纤维复合材料中发生的渐进性损伤奠定了基础。