Extended Data Fig. 5: Fracture process zone and crack propagation.
(a) Tensile loading of the \(2B = 1\ell\) specimen (\(a/\ell = 10\), \(\bar \rho\) = 0.1) and the corresponding (b) measurement and FE prediction of the tensile stress versus strain response. (c) High-speed photographs and corresponding FE predictions of crack propagation beyond peak stress with time t = 0 corresponding to the instant of the initiation of crack propagation at peak stress. (d) DVC measurements and (e) FE predictions of the distributions of the von-Mises strains εe within struts around the crack-tip. Measurements and predictions are shown at two load levels just prior to peak load marked in (b). The scale bar is applicable for the strains in c, d and e.
