Constructal Hypothesis for Mechanical Deformation
About this article
Abstract
Mild Steel specimen, when subjected to tensile forces shows considerable plastic deformation before fracture. A cross-section of the fractured specimen has the familiar cup – cone form and shows traces of a three – dimensional parabolic geometry. The morphing of the steel specimen from a volume to a point as a spontaneous, entropy producing or energy dispersing process is analysed using the Constructal law.References
[1] P. K. Nag, Engineering Thermodynamics, Tata McGraw Hill Publications, New Delhi, 2008.
[2] S. P. Timoshenko and D. H. Young, Elements of Strength of Materials, Litton Educational Publishing Inc., New York, 2009.
[3] Information on http://www.2ndlaw.oxy.edu/
[4] A. Bejan, Advanced Engineering Thermodynamics, John Wiley, USA, 1998.
[5] A. B. Chatterjee, “Emergence of structures and forms in complex adaptive systems in nature”, Sixth International Conference on Relating Design in Nature with Engineering and Science, Spain, 2012.
View more references (4)
[6] P. W. Atkins and J. de Paula, Physical Chemistry, Oxford University Press, New York, 2005.
[7] V. Raghavan, Materials Science and Engineering, PHI Learning Private Limited, India, 2004.
[8] W. D. Callister, Jr., Callister’s Material Science and Engineering, John Wiley and Sons, 2007.
[9] S. K. Som and G. Biswas, Introduction to Fluid Mechanics and Fluid Machines, Tata McGraw Hill Publications, New Delhi, 2010.