Fracture Prediction of Steel-Plated Structures under Low-Velocity Impact

In this paper, a validation study of recently proposed rate-dependent shell element fracture model using quasi-static and dynamic impact tests on square hollow sections (SHS) made from offshore high-tensile strength steel was presented. A forming limit curve used to predict the membrane loading-dominated failure, while ductile locus applied for predicting failure governed by bend loading. The predicted peak force initiation adopted material agreed well with experimental results. mode also captured accurately. Further simulations were performed discuss importance inclusion effects separate treatment modes. Finally, shortcomings common practice rate-effects in low-velocity involving highlighted.