000			03118nam a22003377a 4500
005			20250513112150.0
008			181208t2016 bx a g bm o000 0 eng d
020			_qhardback
040			_aUniversiti Teknologi Brunei _cUTB _dUniversiti Teknologi Brunei
084			_aUTB 120 REPORT, THESIS & DISSERTATION _aRTDS 39
100	1		_aNoor Hamdiana Bte Hj Abdul Hamid _eauthor.
245	1	0	_aBehavior of empty and foam filled bi-tubular cone-tube subjected to axial loading/ _cNoor Hamdiana Bte Hj Abdul Hamid
260			_aBrunei Darussalam : _bUniversiti Teknologi Brunei, _c© 2016.
300			_a88 pages : _bsome colour illustrations ; _c30cm.
500			_aA project report submitted in partial fulfillment of the requirements for the degree of Bachelor of Engineering in Mechanical Engineering
500			_aABSTRACT In this project, experimental tests were performed on empty and foam-filled bi-tubular composite cone-tubes under axial compression loading. The hand lay-up method was used to fabricate the bi-cone-tubes using jute and glass/epoxy materials. Tube and top cone diameters were 40 mm and 65.6 mm, respectively. Cone semi-apical angles of 5°, 10°, 15°, 20°, and 25° were examined. The length of the fabricated tubes and cones was maintained at 110 mm. Polyurethane foam was used as a foam filler. Load-displacement graphs for all the tested specimens were drawn and discussed. Energy absorption, crush force efficiency, and stroke efficiency were calculated and discussed. The effect of cone semi-apical angle, foam filler, and material used on the maximum load and on the absorbed energy were investigated. Crashworthiness analysis was also made based on the results of specific energy absorption, crush force efficiency, and stroke efficiency. Results show that glass/epoxy bi-tubular cone-tubes supported a load 71% higher than the jute-glass/epoxy 52% and jute/epoxy cone-tubes, respectively. It has been found that the foam-filled bi-tubular cone tubes improved the absorbed energy significantly, and the crushing process became more stable than the empty bi-tubular cone tubes. The increase in cone semi-apical angle increases the absorbed energy, crush force efficiency, and the stroke efficiency for both empty and foam-filled bi-tubes. Maximum energy absorption values obtained from the axially crushed bi-tubular cone-tubes were 50%, 49%, and 48% for glass/epoxy, Jute-glass/epoxy, and Jute/epoxy composite materials used.
502			_aDissertation (Degree) - Universiti Teknologi Brunei (2016)
504			_aIncludes bibliographical references and appendices
610		4	_aUniversiti Teknologi Brunei _vDissertation
650		4	_aCone
650		4	_aEnergy _zBrunei Darussalam
650		4	_aFibres _zBrunei Darussalam
650		4	_aAxial loads
650		4	_aDissertation, Academic
650		4	_aThesis writing
700	1		_cDr _eSupervisor _aAsad A Khalid
942			_2lc _cRTDS
998			_eReport, Thesis & Dissertation _s828578 : 001605 c.1 UTB _xUniversiti Teknologi Brunei
999			_c19221 _d19221