A damaging beam-lattice model for quasi-brittle fracture

This work aims to propose a new damaging beam-lattice model using the Discrete Element Method paradigm dedicated simulation of quasi-brittle fracture under complex loadings. Enrichment elastic Euler–Bernoulli beam link, inspired by cohesive zone models, is proposed provide damageable behavior in mixed mode and contribution frictional not considered this first version damage model. The tensile on link taken into account from order elongation while all other contributions, i.e. bending, shear, torsion are second-order beam. These orders refer theory, where induced force normal cross-section second curvilinear length resulting bending loads. As these two kinematics do correspond conventional modes I, II, III, deep checking step undertaken. First, mixed-mode testing single performed monitor energy components dissipated each ensure that exhibits monotonic evolution between boundary values related pure modes. Based verification, test compression one simulated cylinder specimen evaluate capabilities qualitatively describe well-known characteristics such as failure facies, unilateral effect, ratio strength. Finally, used simulate crack propagation coming recent international Carpiuc benchmark.