Crashworthiness capability of thin-walled fibre metal laminate tubes under axial crushing

This investigation focuses on the interaction effect during the quasi-static axial crushing of circular and square thin-walled aluminium extrusions filled with polymeric foam or cork. The increment in the absorbed energy due to interactions between materials was assessed using a validated numerical model calibrated with experimental material data. Simulations were run with variable cross-section dimensions, thickness, and foam density. The results were used to adjust the parameters of design formulas to predict the average crush forces of foam- and cork-filled thin-walled tubes. The analysis of the energy dissipation per unit volume revealed that the highest increments due to the interaction between materials appeared in the foam-filled square extrusions. Energy dissipation increased with higher density foams for both cross-sections due to a stronger constraint of the aluminium walls, and thus a reduction of the folding length. Thinner tube walls also delivered a higher improvement in the energy dissipation per unit volume than those with thicker walls. The contribution of friction was also quantified and investigated.

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Quasi-static axial crushing of thin-walled steel tapered tubes with hybrid geometry: experimental and numerical investigation

International Journal of Crashworthiness ◽

10.1080/13588265.2020.1774037 ◽

2020 ◽

pp. 1-15 ◽

Cited By ~ 1

Author(s):

Stavros Lykakos ◽

P. K. Kostazos ◽

D. E. Manolakos

Keyword(s):

Numerical Investigation ◽

Axial Crushing ◽

Thin Walled

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On the fracture behaviour of adhesively bonded CFRP hat-shaped thin-walled beam under axial crushing load: An experimental and modelling study

Composite Structures ◽

10.1016/j.compstruct.2019.01.075 ◽

2019 ◽

Vol 215 ◽

pp. 258-265 ◽

Cited By ~ 12

Author(s):

Xiao Han ◽

Shaoqiang Hou ◽

Liang Ying ◽

Wenbin Hou ◽

Husniddin Aliyev

Keyword(s):

Fracture Behaviour ◽

Adhesively Bonded ◽

Axial Crushing ◽

Thin Walled ◽

Modelling Study

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Weighting of Natural Fibre Criteria for Fibre Metal Laminate Using Entropy Method for Car Front Hood Utilization

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.740.75 ◽

2017 ◽

Vol 740 ◽

pp. 75-80

Author(s):

Noordiana Mohd Ishak ◽

Sivakumar Dhar Malingam ◽

Muhd Ridzuan Mansor

Keyword(s):

Material Selection ◽

Selection Process ◽

Success Probability ◽

Natural Fibre ◽

Entropy Method ◽

Raw Material ◽

Information Measurement ◽

Suitable Material ◽

Fibre Metal ◽

Fibre Metal Laminate

Material selection is one of the crucial stages in design and development process which depend on various physical, mechanical and manufacturing properties. To increase the success probability of the product, the designer needs to decide the suitable material. Therefore, to increase the reliability of the product, entropy method could be applied to determine the importance of criteria for the material used. Entropy method is a highly reliable and can be adjusted to information measurement to determine weighting criteria in decision making environment. Weighting criteria of material play a very significant role in the ranking results of the material selection. Therefore, the aim of this study is to utilise entropy method to rank the main criteria of the natural fibre used in fibre metal laminate panel for car front hood design. It is important to define the main criteria of materials during the material selection process to prevent any mechanical failure and to control the raw material cost. Most of the fibre metal laminate in the market utilise synthetic fibre, while natural fibre is rarely explored. Entropy method was applied to determine the main criteria weighting of natural fibre using five criteria. The result showed the highest rank to the lowest rank for the main criteria is density, stiffness, water absorption, cost and finally availability.

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