Monte-Carlo Simulation Model for Predicting the Tensile Strength Distribution of Cross Laminated Timber

The tensile strength properties of cross laminated timber (CLT) is one of the indispensable concern for designing the structures using it. For evaluating the strength properties of wood based materials, the strength distribution has to be understood. However, experimental approach to obtain the distribution is limited because of the problem in finance and load capacity of testing machine. This study therefore developed the model for simulating the tensile strength distribution of CLT. First, relationship between tensile strength and maximum strain of virtual laminae was made using Monte-Carlo method. Second, tensile fracture of CLT was modeled and the tensile strength was calculated. In addition, reinforcement effect by the laminating was included to the presented model. The simulated result showed agreement with experimental result. However, the simulated average strength became little lower than the experimental one. This study also discussed the problem to be taken consideration for better simulating accuracy.