Nonlinear Dynamic Finite Element Analysis of Blast Loaded Curtain Walls

Finite element simulations of modern flexible high energy dissipation blast resistant curtain walls will be presented and compared with test results. Within the models the whole structures with all relevant components of windows, frames and anchoring are included by using a special nonlinear material algorithm for laminated glass, contact definitions, a detailed mesh etc. The focus of the presentation is the prediction of different processes of fracture and damage. Additionally some common design parameters like ductility factors and member end rotation limits will be discussed and compared with simulation and test results. Often too rigid handling of deformation limits instead of using more realistic failure criteria is counterproductive for well balanced structures and leads to increased stiffness of all parts and high support forces.