Abstract Spallation is the phenomenon that under impact loading, material interior reaches tensile failure limit instantaneously due to effect of two sparse waves moving in opposite directions, and cracks are formed interior. The specimen a certain alloy was taken as research object, planar experiment carried out by 20mm caliber one-stage light gas gun. free surface particle velocity curve obta...

The interim guidelines of second-generation intact stability criteria and their explanatory note were issued by the IMO in 2022. However, due to complexity, direct assessments broaching loss still need be made easier for users. Therefore, mathematical models astern seas are studied this paper. Firstly, a time-domain 6 DOF numerical model is adopted, combining seakeeping maneuvering models. Seco...