Finite element analysis of square CFST beam strengthened by CFRP composite material
作者： Ahmed W. Al Zand , Wan Hamidon W. Badaruzzaman , Azrul A. Mutalib , A.H. Qahtan
DOI: 10.1016/J.TWS.2015.08.019
关键词: Finite element method 、 Square (algebra) 、 Beam (structure) 、 Composite material 、 Materials science 、 Delamination 、 Structural engineering 、 Fe model 、 Steel tube 、 Composite number 、 Composite beams
摘要: Abstract Concrete-filled steel tubes (CFSTs) have become the most recommended composite structural members in many modern structures. These may need upgrading or strengthening like any conventional for reasons. In this research, Finite element (FE) models are prepared to investigate behavior of square CFST beams, partially strengthened with carbon fiber-reinforced polymer (CFRP) sheets. The proposed FE verified existing experimental test results. Several parameters studied including various CFRP wrapping lengths/layers, tube yielding strengths, depth-to-thickness ( D / t ), and length-to-depth L ) ratios. application strengthen found less improvement elastic range compared significant plastic range. is be not very effective if applied along 50% length those 75% more their because delamination failure. Load ratios achieved close values when 100% sheets up three layers. Better load were observed higher lower yield strength adopting same scenario.
elsevier.com
sci-hub.se 参考文章(24)
Sabrina Fawzia, Riadh Saleh Hassan Al-Mahaidi, Xiao-Ling Zhao, Sami H Rizkalla, Bond characteristics between CFRP and steel plates in double strap joints Advanced Steel Construction. ,vol. 1, pp. 17- 27 ,(2005)
Carlos G. Davila, Pedro P. Camanho, Mixed-Mode Decohesion Finite Elements for the Simulation of Delamination in Composite Materials ,(2002)
Xiao-Ling Zhao, Lei Zhang, State-of-the-art review on FRP strengthened steel structures Engineering Structures. ,vol. 29, pp. 1808- 1823 ,(2007) , 10.1016/J.ENGSTRUCT.2006.10.006
Haider Al-Zubaidy, Riadh Al-Mahaidi, Xiao-Ling Zhao, Experimental investigation of bond characteristics between CFRP fabrics and steel plate joints under impact tensile loads Composite Structures. ,vol. 94, pp. 510- 518 ,(2012) , 10.1016/J.COMPSTRUCT.2011.08.018
Jimmy Haedir, Xiao-Ling Zhao, Raphael H. Grzebieta, Michael R. Bambach, Non-linear analysis to predict the moment–curvature response of CFRP-strengthened steel CHS tubular beams Thin-walled Structures. ,vol. 49, pp. 997- 1006 ,(2011) , 10.1016/J.TWS.2011.03.004
Lin-Hai Han, Hong Huang, Zhong Tao, Xiao-Ling Zhao, Concrete-filled double skin steel tubular (CFDST) beam–columns subjected to cyclic bending Engineering Structures. ,vol. 28, pp. 1698- 1714 ,(2006) , 10.1016/J.ENGSTRUCT.2006.03.004
R.D.S.G. Campilho, M.F.S.F. de Moura, J.J.M.S. Domingues, Using a cohesive damage model to predict the tensile behaviour of CFRP single-strap repairs International Journal of Solids and Structures. ,vol. 45, pp. 1497- 1512 ,(2008) , 10.1016/J.IJSOLSTR.2007.10.003
J.A.B.P. Neto, R.D.S.G. Campilho, L.F.M. da Silva, Parametric study of adhesive joints with composites International Journal of Adhesion and Adhesives. ,vol. 37, pp. 96- 101 ,(2012) , 10.1016/J.IJADHADH.2012.01.019
Haider Al-Zubaidy, Riadh Al-Mahaidi, Xiao-Ling Zhao, Finite element modelling of CFRP/steel double strap joints subjected to dynamic tensile loadings Composite Structures. ,vol. 99, pp. 48- 61 ,(2013) , 10.1016/J.COMPSTRUCT.2012.12.003
N. Attari, S. Amziane, M. Chemrouk, Flexural strengthening of concrete beams using CFRP, GFRP and hybrid FRP sheets Construction and Building Materials. ,vol. 37, pp. 746- 757 ,(2012) , 10.1016/J.CONBUILDMAT.2012.07.052