Calibration of a combined XFEM and mode I cohesive zone model based on DIC measurements of cracks in structural scale wood composites

A combined experimental and numerical approach to characterize a fracture process in wood composites of Norway Spruce is presented. Processed results of crack growth during wedge split tests in TL (tangential - longitudinal), and RL (radial-longitudinal) planes for mode I (opening) are used as a basis for numerical fracture characterization of wood composites. A non-linear plane stress finite element model with extrinsic (monotonically...