Vol. 16, No. 1, 2021

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Progressive failure and ultimate strength analysis of sandwich composite hat-stringer-stiffened panels under transverse in-plane loading

Diyi Chen, Renjun Yan, Lu Xin and Mengzhen Li

Vol. 16 (2021), No. 1, 1–21
Abstract

This article studies progressive failure and ultimate strength prediction of sandwich composite hat-stringer-stiffened panels subjected to the transverse in-plane loads. By using the finite element software ABAQUS and the nonlinear finite element method, a failure criterion and a rigid degradation mode of interwoven fibers have been found, a set of finite element analysis methods for predicting the ultimate strength of sandwich composite hat-stringer-stiffened panels has been established. It has been verified the better accuracy of this method in predicting the ultimate strength and mechanical properties of sandwich composite hat-stringer-stiffened panels by comparing with the experimental results. Finally, the paper analyzes some factors affecting the numerical simulation of progressive failure and ultimate strength and discusses how to improve the accuracy of predicting the behavior of sandwich composite hat-stringer-stiffened panels.

Keywords
sandwich composite, hat-stringer-stiffened panels, progressive failure analysis, ultimate strength prediction
Milestones
Received: 22 June 2019
Revised: 22 September 2020
Accepted: 27 September 2020
Published: 6 March 2021
Authors
Diyi Chen
Key Laboratory of High Performance Ship Technology of Ministry of Education
Wuhan University of Technology
430063 Wuhan
China
School of Transportation
Wuhan University of Technology
430063 Wuhan
China
Renjun Yan
Key Laboratory of High Performance Ship Technology of Ministry of Education
Wuhan University of Technology
430063 Wuhan
China
School of Transportation
Wuhan University of Technology
430063 Wuhan
China
Lu Xin
CSSC Guangzhou Huangpu Shipbuilding Company Limited
511462 Guangzhou, China
Mengzhen Li
Key Laboratory of High Performance Ship Technology of Ministry of Education
Wuhan University of Technology
430063 Wuhan
China
School of Transportation
Wuhan University of Technology
430063 Wuhan
China