Prediction of Warp Tensile Elasticity of 2.5D Woven Composites

doi:10.3969/j.issn.1000-1093.2021.07.019

Abstract

Abstract: A prediction method is proposed for investigating the warp tensile elastic properties of 2.5D woven composites with different structures. Through the design and analysis of nonlinear multiscale materials, the warp tensile elastic properties of the typical volume element（RVE） models of curved and straight linking 2.5D woven composites were simulated, and the warp tensile elastic moduli and warp tensile failure forms of RVE models were obtained. The warp tensile properties of two 2.5D woven composites were characterized to verify the accuracy and rationality of the simulated results. The characterized results are compared with the simulated results.The results show that the design and analysis methods of nonlinear multiscale materials can be used to predict the warp tensile elastic modulus of straight linking 2.5D woven composite, and accurately predict the warp tensile failure forms of two 2.5D woven composites. This provides an effective method for designing and optimizing the warp tensile elastic properties of 2.5D woven composites.

Key words: wovencomposites, typicalvolumeelement, designandanalysisofnonlinearmultiscalematerials, elasticmodulus

CLC Number:

TB332

LI Juying, LI Ying, WANG Ronghui, WEI Huazhen, KONG Guoqiang. Prediction of Warp Tensile Elasticity of 2.5D Woven Composites[J]. Acta Armamentarii, 2021, 42(7): 1516-1523.

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