Acoustic emission (AE) is a powerful technique for detection and analysis of the elastic waves produced by the failure mechanisms in construction materials such as masonry. In this study, the different fracture mechanisms are studied in relation to the properties of bricks and mortars. The fracture process is being evaluated using the combination of AE and Digital Image Correlations (DIC) techniques. The isolation of the AE signatures of different types of failure mechanisms is done by testing bricks in flexure and brickwork couplets in compression. AE data are analyzed with a simplified AE parameter-based approach aiming to characterize the fracture mode. This is one of the first times where the relation between the shear and the longitudinal strain field is correlated in masonry with AE. This offers new insight in the material's behavior especially in relation to complicated structural geometries where the dominant stress mode is not known a priori.

声发射（AE）是一种强大的技术，用于检测和分析由诸如砖石建筑材料之类的破坏机制产生的弹性波。在这项研究中，研究了与砖和砂浆的性能有关的不同断裂机理。正在使用AE和数字图像关联（DIC）技术的组合来评估骨折过程。通过测试弯曲的砖块和压缩的砖砌对联，可以隔离不同类型的故障机制的AE签名。使用简化的基于AE参数的方法分析AE数据，以表征断裂模式。这是第一次将剪切力和纵向应变场之间的关系与AE相关联的情况。这为材料提供了新的见解。