X-ray computed tomography images based phase-field modeling of mesoscopic failure in concrete

Crack nucleation and propagation in concrete is significantly affected by mesoscopic heterogeneities, resulting in distinct failure modes and mechanical behavior. In this work, the phase-field regularized cohesive zone model (PF-CZM) is combined with the X-ray computed tomography (XCT) imaging technique and applied to the modeling of mesoscopic cracking in concrete. More specifically, the in situ XCT image is employed to build the finite element...