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Modelling the behaviour of heavy and mass timber members subjected to blast loads
Highlights A wood material model and ABAQUS user subroutine for blast analysis are presented. Mesh sensitivity analyses are performed to establish appropriate meshing parameters. Shock tube test results on glulam and CLT members are used to validate the model. Reasonable modelling predictions are obtained when compared with experimental data. Resistance curves from the model matched well with experimental data.
Abstract This paper presents a numerical study investigating the behaviour of glued laminated timber (glulam) beams and cross-laminated timber (CLT) panels subjected to shock-tube simulated blast loads. A 3D constitutive material model for wood, which accounts for the anisotropic nature of the material as well as high strain rate effects, was implemented into a finite element (FE) model via user subroutine. Utilizing the continuum damage approach for wood, a total of eight failure criteria were used to describe both ductile and brittle failure modes. A total of 23 full-scale experimental test results were used in the validation of the modelling approach. In general, the FE model was found to be capable of capturing the overall failure mode, damage propagation, as well as predicting the resistance curves with good accuracy.
Modelling the behaviour of heavy and mass timber members subjected to blast loads
Highlights A wood material model and ABAQUS user subroutine for blast analysis are presented. Mesh sensitivity analyses are performed to establish appropriate meshing parameters. Shock tube test results on glulam and CLT members are used to validate the model. Reasonable modelling predictions are obtained when compared with experimental data. Resistance curves from the model matched well with experimental data.
Abstract This paper presents a numerical study investigating the behaviour of glued laminated timber (glulam) beams and cross-laminated timber (CLT) panels subjected to shock-tube simulated blast loads. A 3D constitutive material model for wood, which accounts for the anisotropic nature of the material as well as high strain rate effects, was implemented into a finite element (FE) model via user subroutine. Utilizing the continuum damage approach for wood, a total of eight failure criteria were used to describe both ductile and brittle failure modes. A total of 23 full-scale experimental test results were used in the validation of the modelling approach. In general, the FE model was found to be capable of capturing the overall failure mode, damage propagation, as well as predicting the resistance curves with good accuracy.
Modelling the behaviour of heavy and mass timber members subjected to blast loads
Oliveira, Damian (author) / Viau, Christian (author) / Doudak, Ghasan (author)
Engineering Structures ; 291
2023-05-30
Article (Journal)
Electronic Resource
English
Wood , Modelling , Behaviour , Numerical , Finite element , Simulation , Material model , Continuum damage mechanics , Blast , Glulam , CLT
Behaviour of Heavy Timber Members Subjected to Sequential Shocktube-Simulated Blast Loads
| Springer Verlag | 2023