Research on cyclic loading behavior of composite material with micro/meso-level material phase evolution

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

Composite Structures Pub Date : 2025-09-12 DOI:10.1016/j.compstruct.2025.119640

Rongxin Peng , Jinxu Teng , Biqin Dong , Yanshuai Wang , Jun Yang

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引用次数: 0

Abstract

Composite materials, widely used in mechanical equipment, aerospace vehicles with high-frequency vibration loading; structures exposed to wind and seismic loading; are typically subjected to cyclic loading, which is essential to simulate performance and pore (defect) evolution to ensure their safe application. To address this need, a simulation method is developed that incorporates micro/meso-structure, material phase evolution, and hysteresis evolution law to analyze fracture behavior of composites. This method, establishing a micro/meso-scale framework that characterizes degradation through pore evolution mechanisms with cyclic behavior. Concrete, a composite material with complex properties, serves as an illustrative example for establishing the micro/meso-level simulation model with cyclic loading, and the validity of calculation method is confirmed by experiments on different specimens. The calculation results show that stress–strain curve of material under monotonic loading closely aligns with the envelope of hysteresis curve. Under cyclic loading, cracks in material accumulate progressively, starting from initial cracks, and leading to the development of major cracks surrounded by a distribution of micro-cracks. Considering micro/meso-structure and material phase evolution, it is possible to develop simulation models for different composites, which can be used to systematically explain failure mechanism of composites, thereby improving their properties and reliability in practical applications.

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基于细观材料相演化的复合材料循环加载行为研究

复合材料，广泛应用于具有高频振动载荷的机械设备、航天飞行器；暴露在风和地震荷载下的结构；通常经受循环加载，这对于模拟其性能和孔隙（缺陷）演变至关重要，以确保其安全使用。为了满足这一需求，开发了一种结合细观结构、材料相演化和迟滞演化规律的模拟方法来分析复合材料的断裂行为。该方法建立了一个微/中尺度框架，通过具有循环行为的孔隙演化机制来表征降解。以混凝土这种性能复杂的复合材料为例，建立了循环加载细观水平的模拟模型，并通过不同试件的试验验证了计算方法的有效性。计算结果表明，单调加载下材料的应力-应变曲线与滞回曲线包络线基本一致。在循环荷载作用下，材料中的裂纹从初始裂纹开始逐渐累积，逐渐发展为大裂纹，周围分布着微裂纹。考虑细观结构和材料相演化，可以建立不同复合材料的模拟模型，用于系统地解释复合材料的破坏机制，从而提高复合材料在实际应用中的性能和可靠性。

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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.