Most of the current researches on masonry damage assessment are qualitative rather than quantitative analysis. In this work, two acoustic emission (AE) rate process mathematical models were used to analyze the AE data during the in situ uniaxial compression test. The results showed that there was a linear correlation between AE cumulative events and the damage parameter, and the mathematical model proposed by S. T. Dai was suitable for analyzing the microcrack evolution of brick masonry material. Furthermore, the comparison of the fourth-order polynomial function and the Dai model with respect to the proportional coefficient k further demonstrated the applicability of the Dai model in damage assessment of in-service brick masonry structures.

中文翻译：

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基于声发射技术的在役砖砌体结构损伤评估

目前对砌体损伤评估的研究大多是定性而非定量分析。在这项工作中，两个声发射（AE）速率过程数学模型用于分析原位单轴压缩试验期间的声发射数据。结果表明，AE累积事件与损伤参数之间存在线性相关性，ST Dai提出的数学模型适用于分析砖砌体材料的微裂纹演化。此外，四阶多项式函数与 Dai 模型在比例系数 k 方面的比较进一步证明了 Dai 模型在现役砖砌体结构损伤评估中的适用性。