Numerical Derivation of Pressure-Impulse Diagrams for Unreinforced Brick Masonry Walls
Pressure-impulse diagrams have been extensively used for damage assessments of structural components subject to a specified blast loading. In this paper, a numerical method is used to generate pressure-impulse diagrams for unreinforced masonry walls subjected to blast loading. A previously developed plastic damage material model accounting for strain rate effects is used for brick and mortar. Three levels of damage criteria are defined based on maximum deflection of the wall and rotation of the supports. The obtained blast response for unreinforced masonry walls are validated against field test data. It is shown that the obtained pressure-impulse diagrams have an improved ability to evaluate the damage level of masonry walls.
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
X. Y. Wei et al., "Numerical Derivation of Pressure-Impulse Diagrams for Unreinforced Brick Masonry Walls", Advanced Materials Research, Vols. 368-373, pp. 1435-1439, 2012