Structural Resistance of Simplified Side Hull Models Accounting for Stiffener Design and Loading Type

Prabowo, Aditya Rio; Tuswan, Tuswan; Nurcholis, Arifin; Pratama, Anandito Adam

doi:10.1155/2021/6229498

Cited by 9 publications

(3 citation statements)

References 43 publications

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“…In this method, output stresses were generated. ABAQUS/CAE software was used to assess von Mises stress [29][30][31][32][33][34][35]. AL6XN material is used to show the result of the stress contour.…”

Section: -4-1-stress Behaviormentioning

confidence: 99%

Investigation of Honeycomb Sandwich Panel Structure using Aluminum Alloy (AL6XN) Material under Blast Loading

Ansori

Prabowo²,

Muttaqie³

et al. 2022

Civ Eng J

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In this study, we focused on the large inelastic behavior of a sandwich panel made of two solid plates as a stiffener and a honeycomb core shell subjected to blast load. The loading scheme was carried out using an explosive charge bullet mounted at a standoff distance of 100 mm with three mass variations of trinitrotoluene: 1, 2, and 3 kg TNT. The numerical simulations performed using ABAQUS/CAE were validated with the experimental results of a previous study. The geometrical effects of the sandwich panel on intact and damaged models were also numerically investigated. The panel was designed using a square and hexagonal honeycomb core. The effect of honeycomb core height was also observed by modeling the core using three height variations: 31, 51, and 71 mm. The results showed that the hexagonal core was more resistant to blast loads than the square design. The core height parameter determines the energy absorption based on these results. The structural strength is also affected by the damage. The findings of this study can be used to improve structural designs that utilize sandwich panels to withstand blast loads. Doi: 10.28991/CEJ-2022-08-05-014 Full Text: PDF

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Section: -4-1-stress Behaviormentioning

confidence: 99%

Investigation of Honeycomb Sandwich Panel Structure using Aluminum Alloy (AL6XN) Material under Blast Loading

Ansori

Prabowo²,

Muttaqie³

et al. 2022

Civ Eng J

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“…One of the crucial parts of a ship's structure is a stiffened panel, which takes the shape of a stiffened thin wall [1][2][3][4][5]. Because stiffened panels have a high strength-to-weight ratio and are reasonably stiff, they can bear the weight of both internal and external wave stresses that induce longitudinal bending moments.…”

Section: Introductionmentioning

confidence: 99%

Probabilistic ultimate strength (US) distribution against environmental casualties: Stiffened panel under imperfection

Sholikhah,

Imaduddin Hanif,

Adiputra

et al. 2024

E3S Web Conf.

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In this study, the ultimate strength of a stiffened panel, which is one of the important components of ship structure, was analyzed by considering the effects of initial imperfection and geometric aspects with variations of random amplitude. The initial imperfection is influenced by local, torsional, and column imperfection modes, while the span/bay and plate slenderness ratios influence the geometric aspects. The analysis was carried out using the ANSYS software’s finite element method (FEM). To calculate the value of normalized strength, the regression calculation stage is carried out, the input is random amplitude with a limit of 0% to 100%, and the normal distribution calculation is shown in the probabilistic distribution. The results of this study indicate that the initial imperfection decreased the ultimate strength of the stiffened panel. The short heavy model has the highest average normalized strength value compared to the other models of variations, which is equal to 0.928. In contrast, the long light model has the lowest average normalized strength value, equal to 0.618.

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“…Research on the response of the geometric structure of a plate to impact and various active loads [5][6][7][8][9][10][11][12][13], including air blast loading, has been carried out over the past few decades. Explosive loading due to landmines and improvised explosive devices (IEDs) poses a signi cant threat to military vehicles and civilian infrastructure.…”

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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Structural Resistance of Simplified Side Hull Models Accounting for Stiffener Design and Loading Type

Cited by 9 publications

References 43 publications

Investigation of Honeycomb Sandwich Panel Structure using Aluminum Alloy (AL6XN) Material under Blast Loading

Investigation of Honeycomb Sandwich Panel Structure using Aluminum Alloy (AL6XN) Material under Blast Loading

Probabilistic ultimate strength (US) distribution against environmental casualties: Stiffened panel under imperfection

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

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