Synchrotron microtomography results for notched composites under quasi-static and fatigue loading

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

Composite Structures Pub Date : 2025-09-29 DOI:10.1016/j.compstruct.2025.119708

J. Fernando Rojas Sanchez , Anthony M. Waas , Wooseok Ji , Chaeyoung Hong , Minsu Park

引用次数: 0

Abstract

X-ray computed microtomography (mCT) results, using the high fluxes from a synchrotron source in conjunction with a novel application of digital volume correlation (DVC) is used to study the damage initiation mechanisms in laminated cross-ply composites. This imaging and analysis framework enables to capture 3D deformation within material volumes with high spatial resolution at macroscopic to submicroscopic scales. We present novel high-resolution experimental measurements that show the sequence by which damage is initiated in a notched composite and how damage progresses under quasi-static loading and cyclic loading conditions. These experimental results serve to develop multi-scale modeling methods that provide deformation response and fatigue life estimates accurately. Damage mechanisms and measurements at these length scales are scarce in the literature.

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准静态和疲劳载荷下缺口复合材料的同步加速器微层析成像结果

利用同步加速器源的高通量，结合数字体积相关（DVC）的新应用，x射线计算机微断层扫描（mCT）结果用于研究层压交叉层合复合材料的损伤起裂机制。这种成像和分析框架能够在宏观到亚微观尺度上以高空间分辨率捕获材料体积内的3D变形。我们提出了新颖的高分辨率实验测量，显示了缺口复合材料中损伤开始的顺序，以及在准静态加载和循环加载条件下损伤的进展。这些实验结果有助于发展多尺度建模方法，准确地提供变形响应和疲劳寿命估算。在这些长度尺度上的损伤机制和测量在文献中很少。

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.