Abstract - An Investigation, using Finite Element Analysis, of the Effect of Swaging on Stiffnesses of Rubber Bushes


	Journals and Publications


	Publications of MRB Latest Publications MRB Digest Journal of Rubber Research 3^rd Qtr 2008 Vol 11(3) 2^nd Qtr 2008 Vol 11(2) 1^st Qtr 2008 Vol 11(1) 4^th Qtr 2007 Vol 10(4) 3^rd Qtr 2007 Vol 10(3) 2^nd Qtr 2007 Vol 10(2) 1^st Qtr 2007 Vol 10(1) 1^st Qtr 2006 Vol 9(1) 2^nd Qtr 2006 Vol 9(2) 3^rd Qtr 2006 Vol 9(3) 4^th Qtr 2006 Vol 9(4) Submit paper/article Order Form	Abstract An Investigation, using Finite Element Analysis, of the Effect of Swaging on Stiffnesses of Rubber Bushes Julia Gough A common practice in the manufacture of cylindrical rubber bushes is to apply a radial contraction to the outer sleeve or a radial expansion to the inner sleeve after moulding – a process known as swaging. This relieves tensile stresses which arise due to differential thermal contraction of the rubber and the sleeves and, if a sufficiently large swaging strain is applied, this compresses the bush which improves its fatigue life. A Finite Element Analysis (FEA) investigation of the effect of swaging on the small strain stiffnesses of some representative, initially stress-free, bushes was carried out. The axial and torsional stiffnesses reduce slightly as the swaging strain increases, contrary to the effect of dimensional changes alone, whereas the radial and tilting stiffnesses increase as predicted from dimensional changes. The reduction in the axial and tilting stiffness was attributed to the effect of compressive stresses introduced by swaging. An approximate estimate of the bush stiffnesses may be obtained from existing theoretical formulae if the original dimensions are used in the calculation of the axial and torsional stiffness and the swaged dimensions are used in the calculation of radial and tilting stiffness. back
The Government and Malaysian Rubber Board shall not be liable for any loss or damage caused by the usage of any information obtained from this site. Malaysian Rubber Board 2002. All Rights Reserved. Best viewed with Internet Explorer 6.x browser.