Fig. 11From: Numerical investigation of dynamic brittle fracture via gradient damage modelsCrack length and conventional energy release rate \(G^\alpha \) for the increasing fracture toughness plate at a very slow loading speed. Comparison between the dynamic model and the first-order quasi-static model. The numerically amplified fracture toughness \((G_\mathrm {c})_\mathrm {eff}\) is calculated based on \(K_1=0.01\) Back to article page