Dynamic interface model for masonry walls subjected to high strain rate out-of-plane loads


Rafsanjani, Seyedebrahim Hashemi; Lourenço, Paulo B.; Peixinho, Nuno

Block work masonry wall; High strain rate loading; Interface model; Out-of-plane behavior; Dynamic Increase factor

The present study proposes a dynamic constitutive material interface model that includesnon-associated flow rule and high strain rate effects, implemented in the finite element codeABAQUS as a user subroutine. First, the model capability is validated with numericalsimulations of unreinforced block work masonry walls subjected to low velocity impact. Theresults obtained are compared with field test data and good agreement is found.Subsequently, a comprehensive parametric analysis is accomplished with different jointtensile strengths and cohesion, and wall thickness to evaluate the effect of the parametervariations on the impact response of masonry walls.