Dynamic bearing capacity of point fixed corrugated metal profile sheets subjected to blast loading

Abstract

Blast loading scenarios and the corresponding hazards have to be evaluated for infrastructure elements and buildings especially at industrial sites for safety and security issues. Point fixed corrugated metal sheets are often applied as façade elements and can become a hazard for humans if they are pulled off. This paper investigates the dynamic bearing capacity of such structural members in terms of their general bending behavior in the middle of the span and pull-out behaviors at the fixing points. The elements are fixed at two sides and the load transfer is uniaxial. An experimental series with static and dynamic tests forms the basis to identify the predominant failure modes and to quantify the maximum stress values that can be absorbed until the investigated structural members fail. The experimental findings are applied to create and to optimize an engineering model for the fast and effective assessment of the structural response. The aim is the derivation of a validated model which is capable to predict the blast loading behavior of metal sheets including arbitrary dimensions, material properties, and screw connections. Results of this study can be integrated into a systematic risk and resilience management process to assess expected damage effects and the evaluation of robustness.

Design methods of blast resistant façades, windows, and doors in Germany: a review

“…Depending on the design and the safety to be achieved, maximum support rotations or maximum plastic deformations can be set as limit values. Values for these limits can be determined experimentally (Fischer et al 2021), by numerical simulations including all failure mechanisms or for simple systems due to analytical considerations.…”