Behaviour of High-Strength Steel under Dynamic and Thermal Loading

The aim of this study is to investigate the material behaviour of high-strength steel at elevated temperatures and high loading rates. Such conditions may occur, for example, during progressive collapse in fire, where the failure of one structural element or part of a structure induces dynamic loading in the remaining elements.

To achieve this, a series of tensile tests is proposed, incorporating various combinations of thermal and mechanical loading. Creep becomes significant at temperatures above approximately 300–400 °C and is influenced by both the heating rate and the applied loading. An induction heating system is employed to ensure rapid and controlled heating of the specimens.