Self-reinforced polypropylene (SRPP) is a composite in which the reinforcement and the matrix consist of the same polymer, namely polypropylene. The present work focuses on the development and experimental validation of an FE model for thermoforming of SRPP. The constitutive model of SRPP sheet is based on the Boisse – Charmetant hyperelastic law. Material properties required to fit the model were obtained from the tensile and picture frame shear tests performed at forming temperatures and bending test of a non-consolidated fabric at room temperature. The model is validated in comparison with the experimental draping data, with special attention to parameters and patterns of wrinkles. Samples, pre-heated to a surface temperature of 170–175 °C, were deformed up to 1–4 cm heights using a hemispherical mould with a 4.5 cm diameter. Overall, good qualitative correlation between experimental and modelling results is observed, which justifies use of the proposed model with the experimentally identified parameters for prediction of SRPP draping and subsequent analysis of the mechanical response of the consolidated part to loading.

自增强聚丙烯（SRPP）是一种复合材料，其中增强材料和基体由相同的聚合物（即聚丙烯）组成。目前的工作集中在SRPP热成型有限元模型的开发和实验验证。SRPP薄板的本构模型基于Boisse-Charmetant超弹性定律。拟合模型所需的材料特性是通过在成型温度下进行的拉伸和镜框剪切测试以及在室温下非固结织物的弯曲测试获得的。通过与实验悬垂数据进行比较来验证该模型，并特别注意皱纹的参数和图案。使用直径为4.5 cm的半球形模具，将预热至170-175°C的表面样品变形至1-4 cm的高度。总体，