Arbitrary multiphase hybrid stress finite element method for composite materials

IF 6.3 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composite Structures Pub Date : 2025-02-15 DOI:10.1016/j.compstruct.2025.118974

Wenyan Zhang, Ran Guo, Wei Xu

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引用次数: 0

Abstract

In this paper, A new Arbitrary Multiphase Hybrid Stress Finite Element (AMHSFE) and its element formulation are established, for which the number of material phases (ph ≥ 2) and the number of element sides are arbitrary. A new modified complementary energy functional considering plasticity is proposed, into which the continuity of displacements and the continuity of tractions on the phase interface of the multiphase material are introduced by Lagrange multiplier method, based on the newly established AMHSFE model and the theory of hybrid stress element method. A new stress function that fully accounts for the reciprocal stress functions at multiple interfaces is constructed. By comparing the results with Finite Element Method (FEM) models, the accuracy and validity of the new AMHSFE considering plasticity is verified. The effect of different terms of the three types of stress functions and the number of integration points on the accuracy of the calculations is discussed. At the end of the article, the accuracy of AMHSFE is further demonstrated by a high volume fraction Particulate Reinforced Composites (PRCs) example, from which it is possible to foresee the possibilities and advantages of AMHSFE for the numerical simulation of tremendous amounts of particle phases of real multiphase materials.

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来源期刊

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.