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

IF 2.3 3区 材料科学 Q3 MATERIALS SCIENCE, COMPOSITES
Zhenzhou Ye, Xiaobin Li, Lin Lv, Weimeng Xie, Wei Chen, Wei Shen
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引用次数: 0

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.
双模量复合加劲板的承载特性分析:数值模拟方法和大规模实验验证
大量实验表明,复合材料在拉伸和压缩时通常表现出不同的模量特性(双模量)。然而,对于实际的复合材料工程结构,尤其是复杂模型,数值模拟计算通常基于单一模量。为了考虑复合材料在拉伸和压缩时的不同模量特性,研究人员提出了简化的双模量材料构成模型。然而,这些构成模型并没有经过大量实验的验证,尤其是复杂模型。本文简化了 GWFMM 模型,并将其用于分析具有不同拉伸和压缩模量的复杂结构。加劲板的实验结果表明,改进后的 GWFMM 模型可用于分析复杂加劲结构的不同拉伸和压缩模量。此外,还进一步探讨了不同实验载荷条件下拉伸和压缩弹性模量比的影响,并讨论了弯曲和扭转对双模量结构的影响规律。相关结论为海洋工程中全尺寸复合材料结构的设计和优化提供了参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Composite Materials
Journal of Composite Materials 工程技术-材料科学:复合
CiteScore
5.40
自引率
6.90%
发文量
274
审稿时长
6.8 months
期刊介绍: Consistently ranked in the top 10 of the Thomson Scientific JCR, the Journal of Composite Materials publishes peer reviewed, original research papers from internationally renowned composite materials specialists from industry, universities and research organizations, featuring new advances in materials, processing, design, analysis, testing, performance and applications. This journal is a member of the Committee on Publication Ethics (COPE).
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