Geometrically nonlinear analysis of layered beams using symbolic approach

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

Composite Structures Pub Date : 2024-09-24 DOI:10.1016/j.compstruct.2024.118583

U. Rodman , D. Zupan , T. Šuštar , J. Korelc

引用次数: 0

Abstract

This study presents a novel layered spatial beam model with discrete connections between layers, developed to accurately capture large displacements and rotations as well as finite strains. The formulation is characterized by simplicity, robustness and compatibility with automatic code generation, making it suitable for various applications. Key features of the model include the use of a piecewise constant strain field, the inclusion of discrete unknowns such as strains and stress resultants, and the efficient numerical implementation using the automatic code generation. The discrete connections between the layers of the model enable an efficient description of the interlaminar behaviour and the consideration of nonlinear constitutive properties. Numerical examples demonstrate the effectiveness and accuracy of the proposed approach and illustrate its potential for practical engineering applications.

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利用符号方法对层状梁进行几何非线性分析

本研究提出了一种新型分层空间梁模型，层与层之间采用离散连接，可精确捕捉大位移和旋转以及有限应变。该模型的特点是简单、鲁棒性强、与自动代码生成兼容，因此适用于各种应用。该模型的主要特点包括使用片断恒定应变场、包含离散未知量（如应变和应力结果）以及使用自动代码生成进行高效的数值计算。模型各层之间的离散连接可以有效描述层间行为并考虑非线性构成特性。数值示例证明了所提方法的有效性和准确性，并说明了其在实际工程应用中的潜力。

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

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.