Effect of debonding damage on transient dynamic response on stern ramp door of passenger ship 6311 GT

Abstract The sandwich, as an advanced material, increases innovation in the field of ship construction. One applications is on ramp door structure. characteristics sandwich material which are light and strong, main reasons for application this material. However, also has drawbacks, one debonding damage, where bond between face core released. This damage can affect structure’s stiffness, impacts reducing strength structure door. effect identified by performing numerical tests using finite element software. test aims to identify door’s dynamic response due damage’s influence. research uses software with explicit dynamics method determine stress displacement loading results testing show that increase ratio causes amplitude when subjected transient loading.