Vol 22, No 2 (2018) > Mini Conference >

Investigation of Ship Hull Girder Strength with Grounding Damage

Muhammad Zubair Muis Alie 1 , Ristiyanto Adiputra 2


  1. Department of Ocean Engineering, Engineering Faculty, Universitas Hasanuddin, Gowa 92172, Indonesia
  2. Department of Maritime Engineering, Engineering Faculty, Kyushu University, 744 Motooka Nishi-ku, Fukuoka 819-0395, Japan


Abstract: The objective of the present study is to investigate the ship hull girder strength of grounding damaged under longitudinal bending. A single hull bulk carrier and double hull oil tanker are taken to be analyzed. The Smith’s method is adopted and implemented into the in-house program. An efficient solution procedure is performed; i.e. by assuming the cross section remains plane and the vertical bending moment is applied to the cross section. 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 in-house program is used and the Smith's method is applied. The grounding damage is made by two conditions, those are placed at the center part of the cross section and the other is located at asymmetric position. To investigate the ultimate strength including the progressive collapse behavior of ship hull with damage, the simply supported is imposed to the cross section taking the hogging and sagging condition into account. The result obtained for intact and damage condition by the in-house program is compared with one another to observe the collapse behavior in advanced.
Keywords: grounding damage, intact, longitudinal bending, ship hull, ultimate strength
Published at: Vol 22, No 2 (2018) pages: 88-93

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