Post-Failure Modes for Steel Sheeting

Cold-formed trapezoidal sheeting of thin steel plate is a very popular product for building construction. It combines low weight and high strength and is economical in use. To increase the insight into the behaviour of the sheeting, this article presents new experiments in which firstgeneration sheeting behaviour is studied under combined concentrated load and bending. The experiments show that after ultimate load, three different post-failure modes occur. Mechanical models have been developed for the three post-failure modes. These models can help to explain why a certain post-failure mode occurs.