Abstract

The kinetics of damage accumulation in a D16ch sheet aluminum alloy (Al–Cu–Mg system) at various stages of static loading is investigated using a combined technique, which includes the detection of acoustic emission (AE) signals, structural studies, and the determination of electrical resistance and an eddy-current parameter. The dependences of these characteristics on the relative strain demonstrate the presence of four stages of specimen fracture. Correlation exponential dependences of the electrical resistance and the eddy-current parameter on damage are obtained, and they can be used to diagnose the state of the material.

中文翻译：

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D16ch 合金在静态加载过程中的损伤累积动力学

摘要

使用组合技术研究 D16ch 板材铝合金（Al-Cu-Mg 系统）在静载荷不同阶段的损伤累积动力学，包括声发射 (AE) 信号的检测、结构研究和测定电阻和涡流参数。这些特性对相对应变的依赖性表明存在四个阶段的试样断裂。获得了电阻和涡流参数对损伤的相关指数依赖性，可用于诊断材料的状态。