By a News Reporter-Staff News Editor at Journal of Engineering -- Researchers detail new data in Structural Engineering. According to news reporting from Penrith, Australia, by VerticalNews journalists, research stated, "This paper studies the behaviors of large amplitude vibration, nonlinear bending and thermal postbuckling of nanocomposite beams reinforced by single-walled carbon nanotubes (SWCNTs) resting on an elastic foundation in thermal environments. Two types of carbon nanotube-reinforced composite (CNTRC) beams, namely, uniformly distributed (UD) and functionally graded (FG) reinforcements, are considered."
The news correspondents obtained a quote from the research from the University of Western Sydney, "The material properties of FG-CNTRCs are assumed to be graded in the beam thickness direction, and are estimated through a micromechanical model. The motion equations of a CNTRC beam on an elastic foundation are derived based on a higher order shear deformation beam theory. The thermal effects are also included in the motion equations and the material properties of CNTRCs are assumed to be temperature-dependent. Numerical studies are carried out for the nonlinear vibration, nonlinear bending and thermal postbuckling of CNTRC beams resting on Pasternak elastic foundations under different thermal environmental conditions. It is found that a CNTRC beam with intermediate CNT volume fraction does not necessarily have intermediate nonlinear frequencies, buckling temperatures and thermal postbuckling strengths."
According to the news reporters, the research concluded: "Thermal postbuckling path of unsymmetric FG-CNTRC beams is no longer the bifurcation type."
For more information on this research see: Nonlinear analysis of nanotube-reinforced composite beams resting on elastic foundations in thermal environments. Engineering Structures, 2013;56():698-708. Engineering Structures can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier - www.elsevier.com; Engineering Structures - www.elsevier.com/wps/product/cws_home/30415)
Our news journalists report that additional information may be obtained by contacting H.S. Shen, University of Western Sydney, Sch Comp Engn & Math, Penrith, NSW 2751, Australia.
Keywords for this news article include: Penrith, Structural Engineering, Australia and New Zealand
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC