Numerical investigation of axial crushing behavior of a tailor welded tube

Gedikli, Hasan

doi:10.1016/j.matdes.2012.08.050

Cited by 30 publications

(10 citation statements)

References 28 publications

(30 reference statements)

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“…In the side impact condition, B-pillar structure faces large deformation condition, the B-pillar is the main energy-absorbing component in the side collision of automotive, and the intrusion velocity, intrusion deformation and intrusion mode are the important factors affecting the occupants ' injury [6]. Most of the currently reported work concerning the lightweight design of the automotive structure was mainly concentrated on the structural optimization that achieves mass reduction mainly by optimizing the thickness parameters of the components and using the topology technology [7,8], while there have been very few researches that explicitly address the detailed methods of structure-material integrated lightweight design of the automotive body, especially for the steel-aluminum mixed material [9]. For this study, a steel-aluminum B-pillar was designed to maximize the utilization rate of materials.…”

Section: Introductionmentioning

confidence: 99%

Research on crashworthiness and lightweight of B-pillar based on MPSO with TOPSIS method

Wang

2019

J Braz. Soc. Mech. Sci. Eng.

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To better improve the lightweight and crashworthiness performance of B-pillar, this paper presents a hybrid approach combining the modified particle swarm optimization algorithm (MPSO) and the technique for order preference by similarity to ideal solution (TOPSIS) approach with principal component analysis method (PCA) has been applied to multi-objective lightweight optimization design of the outer panel of the B-pillar structure of automotive. First, the numerical model was conducted to investigate the crashworthiness indicators of H-point under the side collision situation, which agree well with experimental results. Second, a steel-aluminum B-pillar was constructed and through integrating experimental design method with a surrogate model based on the numerical model to construct the approximate model, MPSO algorithm was adopted for multi-objective optimization design of B-pillar and the Pareto solutions set was determined. Finally, TOPSIS with PCA method can obtain the best compromise solution. It is observed that the weight of the B-pillar is reduced by 20.7% under the precondition of the peak of impacting velocity and the peak intrusion deformation has improved by 23.5% and 41.7%, respectively. Moreover, a comparison of the optimal design and original model, it reveals that the proposed hybrid method has a superior performance used for multi-objective lightweight optimization design of B-pillar structure. Keywords B-pillar • Steel-aluminum • Modified particle swarm optimization algorithm (MPSO) • Technique for order preference by similarity to ideal solution (TOPSIS) • Principal component analysis (PCA)

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Section: Introductionmentioning

confidence: 99%

Research on crashworthiness and lightweight of B-pillar based on MPSO with TOPSIS method

Wang

2019

J Braz. Soc. Mech. Sci. Eng.

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“…To overcome this defect, many joining technology, such as spot weld, adhesive and rivet joint as adopted in this study for higher reliability, have been researched. More recently, joining of dissimilar materials such as aluminum alloys and steels, which is one of the most effective ways to settle the contradictory problem mentioned above, has received wide attention from automotive researchers and manufacturers [19][20][21]. For example, Zhou et al [19] investigated the effects of five factors on the crashworthiness of steel-aluminum hybrid S-shaped front rail by taking the peak impact force, the absorbed energy, the weight and the specific total efficiency as indices.…”

Section: Introductionmentioning

confidence: 99%

“…It was found that by reasonably matching these factors, both the crashworthiness and lightweight performances could be significantly improved. Using coupled FE and smooth particle hydrodynamics (SPH) methods, Gedikli performed numerical simulations for the dynamic behaviors of empty [20] and foam-filled [21] hybrid material tailor-welded tubes under axial impact. The purpose was to improve the SEA and the crash force efficiency (CFE, the ratio of mean crash force to maximum force) of the tubes while reducing the initial peak force (F ip ).…”

Section: Introductionmentioning

confidence: 99%

On design of hybrid material double-hat thin-walled beams under lateral impact

Sun

et al. 2016

International Journal of Mechanical Sciences

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“…The conventional thin-walled structures (Abramowicz, 2003;Alghamdi, 2001;Fan, Lu, & Liu, 2013;Gedikli, 2013;Li, Zheng, Yu, & Guo, 2013;Liu, 2010;Mamalis, Manolakos, Ioannidis, Kostazos, & Dimitriou, 2003;White & Jones, 1999;Yamashita, Gotoh, & Sawairi, 2003;Yang & Qi, 2013;Zhang & Zhang, 2013) mainly use single material and uniform wall thickness. In fact, energy absorbers often bear very complex loading, implying that different regions should have different roles to maximize usage of materials.…”

Section: Introductionmentioning

confidence: 99%

“…To address this issue, some researchers presented hybrid steel-aluminum TWB http://dx.doi.org/10.1016/j.eswa.2014.12.054 0957-4174/Ó 2015 Elsevier Ltd. All rights reserved. structures for crashworthiness (Gedikli, 2013;Hosseini-Tehrani & Nikahd, 2006;Zhou, Lan, & Chen, 2011). From their research results, it is easily found that energy absorption and crushing force can be favorably adjusted by choosing different combination of materials and thickness.…”

Section: Introductionmentioning

confidence: 99%