Numerical Analysis of Masonry under Compression via Micro-Model
The micro-model, which the brick and the mortar model are separated, is used to analyze masonry. Meanwhile, the mortar is divided into three layers along the thickness direction to obtain the internal mechanical behavior of mortar, and the vertical mortar joint strength is taken as 50% strength of the horizontal mortar joint for considering the poor quality of vertical mortar joint. The compressive ultimate load and failure mode of masonry taken from the finite element analysis result, especially the vertical cracks throughout all bricks and mortar and change of brick and mortar strain, are in agreement with the experimental results. It shows that the micro-model and method adopted in paper are able to effectively apply in nonlinear structural analysis for masonry.
Chaohe Chen, Yong Huang and Guangfan Li
W. R. Lü et al., "Numerical Analysis of Masonry under Compression via Micro-Model", Advanced Materials Research, Vols. 243-249, pp. 1360-1365, 2011