编织FRP复合材料冲击和穿孔的高效计算模型

IF 7.1 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composite Structures Pub Date : 2025-09-20 DOI:10.1016/j.compstruct.2025.119683

Jakov Ratković, Darko Ivančević

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引用次数: 0

摘要

本文研究了提高编织纤维增强复合材料冲击致渐进损伤分析计算效率的不同策略。VUMAT用户定义的材料模型与商业有限元软件Abaqus/Explicit结合使用，用于编织碳纤维增强环氧层压板的渐进损伤建模。根据基于应力的破坏起始准则和能量驱动的损伤演化，通过有效的基于破坏应变的单元去除，可以捕捉到承载能力的完全丧失，从而能够准确评估全射孔能量裕度。通过采用所选的建模策略，对实验结果进行了所提出的方法的验证。该方法已在冲击模拟中得到验证，在冲击模拟中，钢球冲击器对铺层[45,0,45,0,45]s的CFRP平纹编织矩形复合板造成损伤。结果表明，在保持精度水平的同时，在模型中仔细实施简化可以显著提高计算效率。也就是说，总时间减少了75%以上。因此，与开始的“完整”模型相比，最终的“混合”模型更适合于检查大型结构部件的工程应用。

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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Computationally efficient modelling of impact and perforation in woven FRP composites

In this study, investigation of different strategies to improve the computational efficiency of impact induced progressive damage analyses in woven fibre reinforced composites is presented. A VUMAT user-defined material model is used in combination with commercial finite element software Abaqus/Explicit for progressive damage modelling of woven carbon fibre reinforced epoxy laminates. Along stress-based failure initiation criteria and energy-driven damage evolution, complete loss of load-bearing capability is captured by effective failure strain-based element removal, thus enabling the accurate assessment of full perforation energy margin. Verification of the proposed methodologies against experimental results has been performed by employing the selected modelling strategies. The approach has been validated in impact simulations in which steel spherical impactors induce damage in rectangular composite plates made of plain weave woven CFRP with the layup [45, 0, 45, 0, 45]_s. The results have shown that careful implementation of simplifications in the model leads to significant improvements in the computational efficiency, while retaining the accuracy level. Namely, an outstanding total time reduction of over 75 % was achieved. Thus, compared to the starting “Full” model, the final, “Hybrid” model is rendered much more suitable for engineering applications in which large structural components are examined.

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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.