Modeling crack propagation in wood by extended finite element method

作者:Qiu L P*; Zhu E C; van de Kuilen J W G
来源:Holz als Roh- und Werkstoff, 2014, 72(2): 273-283.
DOI:10.1007/s00107-013-0773-5

摘要

The main objective of this paper is to develop extended finite element method (XFEM) based models to simulate the crack propagation behavior of wood. Fracture toughness of Mode I and II and elastic properties of Northeast China larch were determined by experiments. Tests on three full-size curved Glulam beams subjected to four-point bending were conducted. XFEM based models incorporating ABAQUS were developed to simulate the experiments and investigate cracking of wood numerically. The numerical results correlate with experiments in terms of crack propagation direction and the applied forces for crack growth.