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Analysis of load-bearing characteristics of bi-modulus composite stiffened plates: Numerical simulation method and large-scale experimental verification.

Authors :
Ye, Zhenzhou
Li, Xiaobin
Lv, Lin
Xie, Weimeng
Chen, Wei
Shen, Wei
Source :
Journal of Composite Materials; Jun2024, Vol. 58 Issue 13, p1571-1587, 17p
Publication Year :
2024

Abstract

A large number of experiments show that composite materials usually show different modulus properties in tension and compression (bi-modulus). However, for actual composite engineering structures, especially complex models, the numerical simulation calculation is usually based on a single modulus. In order to consider the different modulus characteristics of composite materials in tension and compression, researchers put forward simplified constitutive models of dual-modulus materials. However, these constitutive models have not been verified by a large number of experiments, especially by complex models. In this paper, the GWFMM model is simplified and used to analyze complex structures with different modulus in tension and compression. The experimental results of stiffened plate show that the improved GWFMM model can be used to analyze different modulus of tension and compression of complex stiffened structures. In addition, the influence of elastic modulus ratio in tension and compression under different experimental load conditions is further explored, and the influence law of bending and torsion on structures with bi-modulus is discussed. The relevant conclusions provide reference for the design and optimization of full-scale composite structures in marine engineering. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00219983
Volume :
58
Issue :
13
Database :
Complementary Index
Journal :
Journal of Composite Materials
Publication Type :
Academic Journal
Accession number :
177037030
Full Text :
https://doi.org/10.1177/00219983241244518