Abstract
This article reported on finite element simulation to predict the creep responses of wood/poly (vinyl chloride) (WPVC) composite members before and after strengthening by using high carbon steel (HCS) flat bar strips bonded to the tension side of composite members. The short-term properties and creep characteristics, in accordance with power law models of WPVC composites and HCS flat bar materials, were determined individually by extensive experimental investigations. The experimental results indicated that strengthening of WPVC composites with HCS flat bar strips could increase the flexural and creep performances of the WPVC composite members both in flat-wise and edge-wise directions. The improvement in the edge-wise direction was relatively greater than that in the flat-wise direction, representing the loading direction dependence for this composite member. Abaqus finite element analysis (FEA) software was applied to predict the creep responses of WPVC composite members based on the characteristics of the individual component material; these results were then verified by the experimental results. Good correlations between FEA and experimental results were found in all cases, indicating that Abaqus software with the power law creep model can be used as an alternative tool for determining the creep responses of WPVC composites.
References
American Society for Testing and Materials, ASTM E8: Standard Test Methods for Tension Testing of Metallic Materials, ASTM International, West Conshohocken PA, USA (2011)Search in Google Scholar
American Society for Testing and Materials, ASTM D198: Standard Test Methods of Static Tests of Lumber in Structural Sizes, ASTM International, West Conshohocken PA, USA (2009)Search in Google Scholar
American Society for Testing and Materials, ASTM D790: Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials, ASTM International, West Conshohocken PA, USA (2007)Search in Google Scholar
Choi, K. K., Taha, M. M. R., Masia, M. J., Shrive, P. L. and Shrive, N. G., “Numerical Investigation of Creep Effects on FRP-Strengthened RC Beams”, J. Compos. Constr., 14, 812–822 (2010) 10.1061/(ASCE)CC.1943-5614.0000123Search in Google Scholar
Davids, W. G., Dagher, H. J. and Breton, J. M., “Modeling Creep Deformations of FRP-Reinforced Glulam Beams”, Wood Fiber. Sci., 34, 426–441 (2000)Search in Google Scholar
Farak, O., Matuana, L. M., “Nanoclay Reinforced HDPE as a Matrix for Wood Plastic Composite”, Compos. Sci. Technol., 68, 2073–2077 (2008) 10.1016/j.compscitech.2008.03.004Search in Google Scholar
Findley, W. N., Lai, J. S. and Onaran, K., “Creep and Relaxation of Nonlinear Viscoelastic Materials”, Dover Publications, Mineola NY, USA (1989)Search in Google Scholar
Fridley, K. J., Tang, R. C. and Soltis, L. A., “Creep Behavior Model for Structural Lumber”, J. Struct. Eng., 118, 2261–2277 (1992) 10.1061/(ASCE)0733-9445(1992)118:8(2261)Search in Google Scholar
Jiang, H., Kamdem, D. P., “Development of Poly(vinyl chloride)/Wood Composites. A Literature Review”, J. Vinyl Addit. Technol., 10, 59–69 (2004) 10.1002/vnl.20009Search in Google Scholar
Lim, S. D., Rhee, J. M., Nah, C., Lee, S.-H. and Lyu, M.-Y., “Predicting the Long-term Creep Behavior of Plastics Using the Short-term Creep Test”, Int. Polym. Proc., 3, 313–3919 (2004) 10.3139/217.1826Search in Google Scholar
Park, B. D., Balatinez, J. J., “Short Term Flexural Creep Behavior of Wood Fiber/Polypropylene Composite”, Polym. Compos., 19, 377–382 (1998) 10.1002/pc.10111Search in Google Scholar
Plevris, N., Triantafillou, T. C., “Creep Behavior of FRP-Reinforced Wood Members”, J. Struct. Eng., 121, 174–186 (1995) 10.1061/(ASCE)0733-9445(1995)121:2(174)Search in Google Scholar
Pulngern, T., Chucheepsakul, S., Padyenchean, C., Sombatsompop, N., Prapruit, W., Chaochanchaikul, K. and Rosarpitak, V., “Effects of Cross-Section Design and Loading Direction on the Creep and Fatigue Properties of Wood/PVC Composite Beams”, J. Vinyl Addit. Technol., 16, 42–49 (2010) 10.1002/vnl.20227Search in Google Scholar
Pulngern, T., Padyenchean, C., Rosarpitak, V., Prapruit, W. and Sombatsompop, N., “Flexural and Creep Strengthening for Wood/PVC Composite Members using Flat Bar Strips”, Mater. Design, 32, 3431–3439 (2011) 10.1016/j.matdes.2011.02.005 Search in Google Scholar
Pulngern, T., Chimkhlai, A., Rosarpitak, V. and Sombatsompop, N., “Analytical, Numerical and Experimental Investigations on Flexural Strengthening for Wood/PVC Composite Members using Flat Bar Strips”, Constr. Build. Mater., 41, 545–556 (2013) 10.1016/j.conbuildmat.2012.12.017Search in Google Scholar
Seed, G. M.: Strength of Materials, Saxe-Coburg Publications, Stirling, UK (2000)Search in Google Scholar
Shi, J., Zhang, J., Pittman, C. U., Toghiani, H. and Xue, Y., “Preliminary Study of the Stiffness Enhancement of Wood-plastic Composites using Carbon Nanofibers.” Holz. Roh. Werkst., 66, 313–322 (2008) 10.1007/s00107-008-0261-5Search in Google Scholar
Sombatsompop, N., Chaochanchaikul, K., “Average Mixing Torque, Tensile and Impact Properties, and Thermal Stability of Poly(vinyl chloride)/Sawdust Composites with Different Silane Coupling Agents”, J. Appl. Polym. Sci., 96, 213–221 (2005) 10.1002/app.21422Search in Google Scholar
Sombatsompop, N., Prapruit, W., Chaochanchaikul, K., Pulngern, T. and Rosarpitak, V., “Effect of Cross Section Design and Testing Conditions on the Flexural Properties of Wood/PVC Composite Beams”, J. Vinyl Addit. Technol., 16, 33–41 (2010) 10.1002/vnl.20202Search in Google Scholar
Tan, K. H., Saha, M. K., “Long-term Deflections of Reinforced Concrete Beams Externally Bonded with FRP System”, J. Compos. Constr., 10, 474–482 (2006) 10.1061/(ASCE)1090-0268(2006)10:6(474)Search in Google Scholar
Xu, Y., Wu, Q., Lei, Y., Yao, F. and Zhang, Q., “Natural Fiber Reinforced Poly(vinyl chloride) Composites: Effects of Fiber Type and Impact Modifier”, J. Polym. Environ., 16, 250–257 (2008) 10.1007/s10924-008-0113-8Search in Google Scholar
Yahyaei-Moayyed, M., Taheri, F., “Experimental and Computational Investigations into Creep Response of AFRP Reinforced Timber Beams”, Compos. Struct., 93, 616–628 (2011a) 10.1016/j.compstruct.2010.08.017Search in Google Scholar
Yahyaei-Moayyed, M., Taheri, F., “Creep Response of Glued-Laminated Beam Reinforced with Pre-Stressed Sub-Laminated Composite”, Constr. Build. Mater., 25, 2495–2506 (2011b) 10.1016/j.conbuildmat.2010.11.078Search in Google Scholar
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