Open AccessResidual Strength Analysisof Asymmetrically Damaged Ship Hull GirderUsing Beam Finite Element Method
Author(s) -
Muhammad Zubair Muis Alie
Publication year - 2016
Publication title -
makara journal of technology
Language(s) - English
Resource type - Journals
eISSN - 2356-4539
pISSN - 2355-2786
DOI - 10.7454/mst.v20i1.3049
Subject(s) - hull , finite element method , beam (structure) , structural engineering , residual , residual strength , mathematics , materials science , composite material , engineering , algorithm
The objective of the present study is to analyze the residual strength of asymmetrically damaged ship hull girder under longitudinal bending. Beam Finite Element Method isused for the assessment of the residual strength of two single hull bulk carriers (Ship B1 and Ship B4) and a three-cargo-hold model of a single-side Panamax Bulk Carrierin hogging and sagging conditions. The Smith’s method is adopted and implemented into Beam Finite Element Method. An efficient solution procedure is applied; i.e. by assuming the cross section remains plane, the vertical bending moment is applied to the cross section and three-cargo-hold model. As a fundamental case, the damage is simply created by removing the elements from the cross section, neglecting any welding residual stress and initial imperfection. Also no crack extension is considered. The result obtained by Beam Finite Element Method so-called Beam-HULLST is compared to the progressive collapse analysis obtained by HULLST for the validation of the present work. Then, for the three-hold-model, the Beam-HULLST is used to investigate the effect of the rotation of the netral axisboth intact and damage condition taking the one and five frame spaces into account.