Đang chuẩn bị nút TẢI XUỐNG, xin hãy chờ
Tải xuống
In this paper residual stress in thick layer composites have been studied. Using numerical analysis, the curing process has been modeled and mechanical properties of a thick layer composite are obtained and the induced residual stress in these composites has been assessed. Unlike thin layer composites, the stress in each layer is not specific and a tensile and compressive stress field can exist simultaneously in thick layer composites. | Semi-analytical study thick polymer composites behavior during curing process Engineering Solid Mechanics 7 2019 205-216 Contents lists available at GrowingScience Engineering Solid Mechanics homepage www.GrowingScience.com esm Semi-analytical study of thick polymer composites behavior during curing process V. Teimouria and M. Safarabadia a School of Mechanical Engineering College of Engineering University of Tehran Iran A R T I C L EI N F O ABSTRACT Article history Composite materials show different mechanical properties in different directions which leads to Received 28 December 2018 complications in the prediction of their behavior. In addition to being inhomogeneous behavior of Accepted 20 May 2019 composite materials is highly dependent on the curing process and many studies have tried to Available online address these issues. Residual stress can induce high errors in prediction of composite material 20 May 2019 Keywords properties and leads to a difference between theoretical and experimental results. It has been Residual stress observed that the humidity of environment and the chemical properties of composite materials are Thick layer composites also important. Fewer studies have addressed thick layer composites and no damage theory has Composite damage been developed for these materials. In this paper residual stress in thick layer composites have been Numerical analysis studied. Using numerical analysis the curing process has been modeled and mechanical properties of a thick layer composite are obtained and the induced residual stress in these composites has been assessed. Unlike thin layer composites the stress in each layer is not specific and a tensile and compressive stress field can exist simultaneously in thick layer composites. 2019 Growing Science Ltd. All rights reserved. 1. Introduction Residual stress is the stress experienced without the presence of external or thermal loading Callister amp Rethwisch 2007 . Residual stresses may be created .
