American Journal of Mechanical Engineering
ISSN (Print): 2328-4102 ISSN (Online): 2328-4110 Website: http://www.sciepub.com/journal/ajme Editor-in-chief: Kambiz Ebrahimi, Dr. SRINIVASA VENKATESHAPPA CHIKKOL
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American Journal of Mechanical Engineering. 2015, 3(4), 135-141
DOI: 10.12691/ajme-3-4-5
Open AccessArticle

The Effect of Defence Hole System on the Failure Load and Bearing Strength of GFRP Bolted Joint

Khudhayer J. Jadee1, and A.R. Othman2

1Technical Engineering College-Baghdad, Middle Technical University, Baghdad, Iraq

2School of Mechanical Engineering, Universiti Sains Malaysia, Malaysia

Pub. Date: August 17, 2015

Cite this paper:
Khudhayer J. Jadee and A.R. Othman. The Effect of Defence Hole System on the Failure Load and Bearing Strength of GFRP Bolted Joint. American Journal of Mechanical Engineering. 2015; 3(4):135-141. doi: 10.12691/ajme-3-4-5

Abstract

The introduction of an auxiliary holes (or defence hole system) near the main hole has provided several benefits in redistributing the stress flows, hence increasing the failure load. This paper presents the experimental study on the effect of the defence hole system (DHS) on the failure load and bearing strength of the glass fibre reinforced polymer (GFRP) composite bolted joint. A series of bearing tests have been carried out on a double lap bolted joint for a wide range of geometric parameters for the cases of without and with the DHS. It was found that adding the auxiliary hole near the bolt-hole has contributed in improving the failure load up to 34.81% increment, with most of the laminates with the defence hole system have failed at higher failure loads.

Keywords:
defence hole system composite bolted joint bearing test failure load

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References:

[1]  Goswami S, A finite element investigation on progressive failure analysis of composite bolted joints under thermal environment, Journal of reinforced plastics and composites, 24(2). 161-171. January 2005.
 
[2]  Choi JH, Ban CS, Kweon JH, Failure load prediction of a mechanically fastened composite joint subjected to a clamping force, Journal of composite materials, 42(14). 1415-1429. July 2008.
 
[3]  Ryu CO, Choi JH, Kweon JH, Failure load prediction of composite joints using linear analysis, Journal of composite materials, 41(7). 865-878. April 2007.
 
[4]  Collings T, The strength of bolted joints in multi-directional CFRP laminates, Composites, 8(1). 43-55. January 1977.
 
[5]  Dhir SK, Optimization in a class of hole shapes in plate structures, Journal of applied mechanics, 48(4). 905-908. January 1981.
 
[6]  Wu Z, Optimal hole shape for minimum stress concentration using parameterized geometry models, Structural and multidisciplinary optimization, 37(6). 625-634. February 2009.
 
[7]  Younis NT, Assembly stress for the reduction of stress concentration, Mechanics research communications, 33(3). 837-845. November 2006.
 
[8]  Wu HC, Mu B, On stress concentrations for isotropic/orthotropic plates and cylinders with a circular hole, Composites Part B: Engineering, 34(2). 127-134. March 2003.
 
[9]  William LK, Stress concentration around a small circular hole in the HiMAT composite plate, NASA technical memorandum 86038. 1-15. December 1985.
 
[10]  Toubal L, Karama M, Lorrain B, Stress concentration in a circular hole in composite plate, Composite structures, 68(1). 31-36. April 2005.
 
[11]  Dan-Jumbo E, Keller R, Chan WS, Selvaraj S, “Strength of composite laminate with multiple holes” in ICCM-17 17th International conference on composite materials, IOM communications Ltd., 27-31.
 
[12]  Giare GS, Shabahang R, The reduction of stress concentration around the hole in an isotropic plate using composite materials, Engineering fracture mechanics, 32(5). 757-766. January 1989.
 
[13]  Tenchev TR, K. Nygard M, Echtermeyer A, Design procedure for reducing the stress concentration around circular holes in laminated composites, Composites, 26(12). 815-828. December 1995.
 
[14]  Tosh MW, Kelly DW, On the design, manufacture and testing of trajectorial fibre steering for carbon fibre composite laminates, Composites part A: applied science and manufacturing, 31(10). 1047-1060. October 2000.
 
[15]  Akour SN, Al-Husban M, Nayfeh JF, Technology engineering and management in aviation: advancements and discoveries, IGI Global, Hershey, 2012, 151-160.
 
[16]  Rhee J, Cho H-K, Marr DJ, Rowlands RE, Local compliance, stress concentrations and strength in orthotropic materials, The journal of strain analysis for engineering design, 47(2). 113-128. February 2012.
 
[17]  Jain NK, The reduction of stress concentration in a uni-axially loaded infinite width rectangular isotropic/orthotropic plate with central circular hole by coaxial auxiliary holes, IIUM engineering journal, 12(6). 141-150. 2011.
 
[18]  ASTM D 5961M-10, Standard test method for bearing response of polymer matrix composite laminates, American society for testing of materials, 2010.
 
[19]  McCarthy M, McCarthy C, Finite element analysis of effects of clearance on single shear composite bolted joints, Plastics, rubber and composites, 32(2). 65-70. February 2003.
 
[20]  Okutan B, Aslan Z, Karakuzu R, A study of the effects of various geometric parameters on the failure strength of pin-loaded woven-glass-fiber reinforced epoxy laminate, Composites science and technology, 61(10). 1491-1497. August 2001.
 
[21]  Riccio A, Marciano L, Effects of geometrical and material features on damage onset and propagation in single-lap bolted composite joints under tensile load: part I – experimental studies, Journal of composite materials, 39(23). 2071-2090. December 2005.
 
[22]  Caprino G, Giorleo G, Nele L, Squillace A, Pin-bearing strength of glass mat reinforced plastics, Composites part A: applied science and manufacturing, 33(6). 779-785. June 2002.
 
[23]  Wu TJ, Hahn HT, The Bearing strength of e-glass/vinyl-ester composites fabricated by vartm, Composites science and technology, 58(9).1519-1529. September 1998.