Effects of Geometrical Variations on the Performance of Hull Plate Structures under Blast Load: A Study using Nonlinear FEA

Mubarok, Muhammad Arif Husni; Muttaqie, Teguh; Prabowo, Aditya Rio; Sohn, Jung Min; Surojo, Eko; Imaduddin, Fitrian

doi:10.1016/j.prostr.2022.05.033

Cited by 2 publications

(1 citation statement)

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“…In cases of uncontrolled unloading, such as IEDs, explosive loading is generated from explosives with a payload weight (kg) and type determined directly by the explosive device. During the detonation of high explosives [1], a blast wave is generated, impacting the structure through the application of incident overpressure (Pso) [2] which, in turn, is re ected back from the structure in the form of re ected excess pressure (PCa) [3,4].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Structural Assessment of Blast Wall Designs on Military-Based Vehicle Using Explicit Finite Element Approach

Mubarok

Prabowo

Muttaqie³

et al. 2022

Mathematical Problems in Engineering

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Explosion load studies are an essential part of shield engineering design. This is especially true for explosion-proof plates, which are used in order to reduce the impact of explosions, which have the potential to cause substantial damage to structural elements. The purpose of this study is to detail the explosion phenomenon and the response of sandwich panel structures under explosive loading. The finite element method (FEM) is used to model the dynamic structural response to explosions. Explicit finite element modeling and analysis are performed using ABAQUS CAE software. An air explosion simulation code is used to determine the blast load on the lower skin plate of a test panel on a typical armored personnel vehicle. Structural analysis is carried out with respect to displacement, von-Mises stress, and internal kinetic energy. Three variations of explosive loads are considered in the simulation in order to better compare the responses of the structures. Three different design variants and materials are considered, including honeycomb, stiffener, and corrugated geometric models and mild steel, medium carbon steel, and alloy steel materials. The results provided by this study pave the way toward the development of guidelines for the design of lightweight structural reinforcement elements.

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Section: Introductionmentioning

confidence: 99%