Crashworthiness enhancement of thin-walled hexagonal tubes under flexural loads by using different stiffener geometries

Abdulqadir, Samer Fakhri; Abed, Ammar Adndn; Bassam, Alaseel

doi:10.1016/j.matpr.2020.12.739

Cited by 5 publications

(5 citation statements)

References 13 publications

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“…Finite element results are presented for the three different test speeds (quasi-static, dynamic 1 mps, and 5 mps) for the composite and different metals. Figures [9][10][11][12][13][14][15] represent the experimental curves for the quasi-static and high-strain tests. The composite's mechanical properties were predicted using ABAQUS and compared with the experimental values to validate the quasi-static and high strain rate (Figures 16, 23).…”

Section: Resultsmentioning

confidence: 99%

“…Lightweight materials such as aluminum, magnesium, and composites are being investigated for automotive applications [9][10][11]. Many authors have demonstrated that composite materials' structures designed to absorb impact energy possess high specific energy absorption (SEA) [8][9][10][11][12][13][14]. The combination of high SEA and mass reduction potential of composite materials has led to a significant research effort, particularly substituting metal components for composite alternatives.…”

Section: Introductionmentioning

confidence: 99%

“…Because of its broad application in the modeling of composites, especially of progressive damage and failure of nonlinear composite materials, ABAQUS was identified as a code capable of representing interest systems in this work [29]. ABAQUS/Explicit can solve dynamic equations and, although intended to solve highly dynamic problems, it can also solve quasi-static problems [14,[30][31][32]. ABAQUS/Explicit and LS-Dyna are two software programs used to simulate low-velocity impact and analytical tools [32].…”

Section: Introductionmentioning

confidence: 99%

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Comparison of the Mechanical Properties and Approach to Numerical Modeling of Fiber-reinforced Composite, High-Strength Steel and Aluminum

Abdulqadir,

Alaseel,

Sameer

2024

J. Eng. Technol. Sci.

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The performance of carbon fiber reinforced polymer (CFRP) composite materials under quasi-static and high strain rate loading can be predicted with a high level of accuracy using the non-linear finite element analysis (FEA) method. Experimental validation tests under uniaxial tensile loading have shown a good correlation with FEA predictions for thermoset polymer composites, using commercially available epoxy resin MTM710 with carbon fiber reinforcement and for comparative tests on DP600 steel and aluminum alloys (AC170 and 5754 series). The physical and numerical results comparison of composite, aluminum, and high-strength steel indicates that the composite may be used as an alternative to aluminum and high-strength steel since the composite was shown to have almost the same strength as steel and higher strength than aluminum with the advantage of being lightweight and possessing similar mechanical behavior under quasi-static conditions. The results demonstrated that the strain rate range used did not significantly affect the strength of the composite materials. The selection of materials can be optimized reliably by FEA based on mechanical properties, cost, and weight. This will significantly reduce the new product introduction timescale, which is essential for the wider use of polymer composites for structural applications, especially in the automotive industry.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of the Mechanical Properties and Approach to Numerical Modeling of Fiber-reinforced Composite, High-Strength Steel and Aluminum

Abdulqadir,

Alaseel,

Sameer

2024

J. Eng. Technol. Sci.

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“…The most popular energy absorption element employed in crashworthiness applications is the thinwalled tube, this is due to its ability to absorb kinetic energy by plastic deformation during an impact. Therefore, many studies have focused on the crushing resistance and the energy absorption capability of thin-walled tubes, with various section shapes such as circular [1,2], square [3,4], hexagonal [5,6], or graded tubes [7,8]. Nevertheless, these approaches are still based on limited mechanical processing and shaping techniques.…”

Section: Introductionmentioning

confidence: 99%

Control of the Deformation Mode of Aluminum Foam-Filled Tubes as a Function of Foam Porosity

Benhizia

Bensalem

2023

MSF

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This paper focuses on the computational modeling of the crashworthiness performance of designed foam-filled thin-walled tubular structures under quasi-static compression loading. The studied foam sample is designed in SolidWorks using the ‘sphere subtraction method’ and implemented as a filler material in the thin-walled tube. The quasi-static compression was simulated by Abaqus software. The foam porosity is manipulated to enhance the crashworthiness performance of empty tubes. The deformation mode and energy absorption capability of the analyzed structures are introduced in detail. The numerical results showed that foam-filler material could change the deformation mode and improve stability during the compression process of thin-walled tubular structures. The number of lobes significantly increases when introducing the foam filler to the tube. These folds are affected by the foam porosity. Results also indicate that the total crushing load of the foam-filled tube is also a function of foam porosity, the mechanical response of the foam-filled tubes tended towards the response of the empty tube for a high porosity (P >85%), while for low porosity (P<85%) the mechanical response of the foam-filled tubes exhibits the three universal deformation characteristics of foams, namely, initial linear stage, extended plateau stage, and final densification stage. The main mechanical properties: collapse stress, plateau stress, and densification strain were obtained via the energy-efficient method for different configurations. The calculated mechanical properties exhibited a strong dependence on foam porosity. To give a quantitative description of the obtained quasi-static compressive properties, these properties are expressed as a function of foam porosity. The proposed formulas can easily recover the quasi-static compressive properties of the empty tube in the case of the absence of foam. The control of the compressive performance of foam-filled tubes as a function of porosity allows for finding an optimum geometry with a predefined foam porosity value adjusted for a given application.

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“…12 In particular, the introduction of stiffeners into structural design shows that the impact resistance of the structure has been significantly improved by comparing the reinforced and non reinforced structures. 13 In addition, adding columnar structure to the hollow pipe can also significantly improve the mechanical properties of the structure by making the filling column interact with the matrix structure in the crushing process. 14 It is also found that the combination effect of structural optimization design and material surface strengthening treatment can play an important role in improving the strength and toughness of the overall structure.…”

Section: Introductionmentioning

confidence: 99%

Numerical study on energy absorption characteristics of bio-mimetic multi-cell thin-walled structures with different hierarchy

Hao

Liu

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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Horsetail plant is the most primitive terrestrial plant bred by spores. After hundreds of millions of years of evolution, the internal structure of horsetail plant stem is composed of multiple cavity which brings excellent impact resistance. The investigation of the internal thin-walled structure of horsetail plant can be used to improve the energy absorption property of the existing thin-walled structure, and has important significance and application potential for the design of anti-collision structure. In this study, four kinds of bio-mimetic thin-walled models with different shapes of cross-sections were proposed and established based on the horsetail plants, and the energy absorption values of the structures were calculated and analyzed by numerical method. The squ-3rd structure with the highest specific energy absorption value of 49.121 kJ/kg was obtained. Then the specific energy absorption value and crushing force efficiency of the structure under different parameters, including wall thickness, side length height ratio, and impact angle were calculated and discussed. Based on the numerical simulation results, we found that for the third-order form of structure with square cross-section, the structure with the wall thickness between 1 and 1.25 mm showed better crushing resistance. And, the energy absorption characteristics of the structure were found to have better performance when the side length height ratio is 1:1.

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Crashworthiness enhancement of thin-walled hexagonal tubes under flexural loads by using different stiffener geometries

Cited by 5 publications

References 13 publications

Comparison of the Mechanical Properties and Approach to Numerical Modeling of Fiber-reinforced Composite, High-Strength Steel and Aluminum

Comparison of the Mechanical Properties and Approach to Numerical Modeling of Fiber-reinforced Composite, High-Strength Steel and Aluminum

Control of the Deformation Mode of Aluminum Foam-Filled Tubes as a Function of Foam Porosity

Numerical study on energy absorption characteristics of bio-mimetic multi-cell thin-walled structures with different hierarchy

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