2019 CSCE Annual Conference - Laval (Greater Montreal)

2019 CSCE Annual Conference - Laval (Greater Montreal) Conference

Analytical Modelling of Heavy Timber Assemblies with Realistic Boundary Conditions Subjected to Blast Loading

Mr. Christian Viau, University of Ottawa (Presenter)
Dr. Ghasan Doudak, University of Ottawa

Prior studies investigating the performance of heavy timber assemblies with realistic boundary conditions have concluded that using simplified modelling tools such as single degree-of-freedom (SDOF) modelling together with current available material models for wood are not sufficient to adequately describe their behaviour and predict the level of damage observed during blast events. To circumvent the shortcomings of traditional modelling methods, a two degree-of-freedom (2DOF) material-predictive model was developed and validated with experimental test data, where glued laminated columns and cross-laminated timber wall panels were tested dynamically using a shock tube test apparatus. Consideration for high strain-rate effects and non-idealized boundary conditions have shown to significantly improve the prediction capability of the analytical model, without the need to resort to more resource-heavy methods, such as finite element analysis.