Performance of composite cones under axial compression loading

Khalid, Asad A.; Sahari, Barkawi; Khalid, Y. A.

doi:10.1016/s0266-3538(01)00092-6

Cited by 22 publications

(15 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In view of this, in the last two decades a lot of research work has been done in understanding the crashworthiness of composite materials. Most of these work focused on the crashworthiness of tube-like geometries [2][3][4][5][6][7][8][9][10]. Based on these findings, composite materials if designed properly, i.e.…”

Section: Introductionmentioning

confidence: 99%

Composite sandwich structures for crashworthiness applications

Tarlochan

Mahdi

Sahari

2007

Proceedings of the Institution of Mechanical Engineers, Part L:

View full text Add to dashboard Cite

Fibre-reinforced polymer sandwiches are promising materials for reducing vehicle mass, thereby improving the fuel economics. Nonetheless, to fully explore these materials as the primary structures and energy absorbers in vehicles, it is important to understand the energy absorption capabilities of these materials. Hence, in the present work, comprehensive experimental investigation on the response of composite sandwich panels to quasi-static compression has been carried out. The crashworthiness parameters, namely the peak load, absorbed crash energy, specific absorbed energy, average crushing load, stroke efficiency, and crush force efficiency of various types of composite sandwich panels were investigated in a series of edgewise compression tests. The composite sandwich panels tested consists of several designs, such as C-shaped, wrapped, and with composite inserts in the core of the panel. The tested composite sandwich specimens were primarily fabricated from glass fibre. For some of the designs, Kevlar and carbon fibres were used. For the core material, two different types of polymeric foams, polystyrene and polyurethane, were used with densities close to 30 kg/m 3 . Several modes of failure were observed and recorded. The primary mode of failure observed was progressive crushing with capabilities of high energy absorption and high stroke efficiencies. Particular attention is paid on the analysis of the mechanism of progressive crushing of the sandwich panels and its relation to the energy absorption capabilities. This is a vital information for designing these materials as energy absorbers.

show abstract

Section: Introductionmentioning

confidence: 99%

Composite sandwich structures for crashworthiness applications

Tarlochan

Mahdi

Sahari

2007

Proceedings of the Institution of Mechanical Engineers, Part L:

View full text Add to dashboard Cite

show abstract

“…The energy absorption and mode of failure of metal tubes under axial compression is influenced by geometrical parameters and material properties of the component [3]. Tubes of different cross sections such as circular [4], square [5], hexagonal [6] and conical [7] were investigated under axial compression and used as energy absorbers for different applications. Khalid et al [7] investigated the performance of composite cones made of glass and cotton/ epoxy under axial compression.…”

Section: Introductionmentioning

confidence: 99%

Performance of tri-tubular conical energy absorber under axial compression

Khalid,

Rohaizan

2024

J. Mech. Eng. Sci.

View full text Add to dashboard Cite

Quasi static axial compression loading on tri-tubular cone (TC) has been carried out using LS-DYNA finite element analysis method. Tri-tubular cones of three arrangements; the first arrangement (model TC-1) consists of cone heights of 50 mm, 75 mm and 100 mm where the inner cone is the maximum height. The second arrangement (model TC-2) consists of cone heights of 100 mm, 75 mm, and 50 mm where the outer cone is the maximum height. The third arrangement (model TC-3) consists of three cones of the same height of 100 mm. Cone semi vertex angle of 20o was maintained for all tri-tubular cones tested. Materials used for this research are glass, jute and jute-glass/epoxy. Crashworthiness analyses were performed to investigate the effect of material used, and tri-tubular cone arrangement on peak load. Crush efficiency, and absorbed energy were drawn and discussed. Failure mechanism of the fractured specimens was also discussed. Effect of number of layers and fiber stacking sequence were also investigated. Results show that the cone arrangement TC-3 gives better performance than the cone arrangement TC-2 followed by the cone arrangement TC-1. Maximum load obtained by tri-tubular cone type TC-3 was found higher 7.09% and 14.96% than TC-2 and TC-1 respectively for glass/epoxy. Material saving was achieved by using tri-tubular cones of different heights under compression. Material used has significant influence on the absorbed energy. Failure mode of tri-tubular conical energy absorber was presented and discussed.

show abstract

“…The crush behaviour of composite structures offers distinct advantages for automotive applications and has been the subject of numerous investigations [3]. Several studies performed on composite structures like tubes [3][4][5][6][7][8][9][10] and cones [11][12][13][14] have been carried out to investigate the energy absorption capability and failure mechanism of these structures at different testing conditions. Researchers found that, high energy absorption can be obtained during the progressive crushing of composite tubes and cones under axial loading.…”

Section: Introductionmentioning

confidence: 99%

Axial Crushing and Energy Absorption of Empty and Foam Filled Jute-glass/ Epoxy Bi-tubes

Khalid

Morsidi

2016

MATEC Web Conf.

View full text Add to dashboard Cite

Abstract. Experimental work on the axial crushing of empty and polyurethane foam filled bitubular composite cone-tube has been carried out. Hand lay-up method was used to fabricate the bi-tubes using woven roving glass, jute and hybrid jute-glass/epoxy materials. The tubes were of 56 mm diameter, and the cones top diameters were 65 mm. Cone semi-apical angles of 5°, 10°, 15 o , 20° and 25 o were examined. Height of 120 mm was maintained for all the fabricated specimens. Effects of material used, cone semi apical angle and foam filler on the load-displacement relation, maximum load, crush force efficiency, and the specific energy absorption and failure mode were investigated. Results show that the foam filler improved the progressive crushing process, increased the maximum load and the absorbed energy of the bitubes. The maximum crushing load and the specific energy absorption increased with increasing the cone semi apical angle up to 20 o for the empty bi-tubes and up to 25 o for the foam filled bi-tubes. Progressive failure mode with fiber and matrix cracking was observed at the top narrow side of the fractured bi-tubes as well as at the bottom surface of 20 o and 25 o cone semi-apical angle bi-tubes.

show abstract

Performance of composite cones under axial compression loading

Cited by 22 publications

References 9 publications

Composite sandwich structures for crashworthiness applications

Composite sandwich structures for crashworthiness applications

Performance of tri-tubular conical energy absorber under axial compression

Axial Crushing and Energy Absorption of Empty and Foam Filled Jute-glass/ Epoxy Bi-tubes

Contact Info

Product

Resources

About