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Analysis of Circular Elastic Plate Resting on Pasternak Foundation by Strain Energy Approach |
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| Authors: | Sanjay Kumar Shukla Ashish Gupta Nagaratnam Sivakugan |
| Institution: | (1) Discipline of Civil and Environmental Engineering, School of Engineering and Physical Sciences, James Cook University, Townsville, QL, 4811, Australia;(2) Discipline of Civil Engineering, School of Engineering, Edith Cowan University, Perth, WA, 6027, Australia;(3) Department of Civil Engineering, Institute of Technology, Banaras Hindu University, Varanasi, 221 005, India;(4) Department of Civil Engineering, Bundelkhand Institute of Engineering and Technology, Jhansi, 284 128, India |
| Abstract: | In this paper, an analytical expression for the deflection of a thin circular elastic plate resting on the Pasternak foundation is derived by adopting the strain energy approach. The parametric study is carried out to observe the location of the plate lift-off and the variation of the deflection profiles for comparing the variation pattern reported in the literature based on an approximate solution technique. It is found that the radial distance of the point of lift-off of the plate decreases with increase in the values of both the shear modulus and the modulus of subgrade reaction of the foundation soil; the reduction being more for their lower values. It is also observed that the variation in deflection of the plate at any radial distance due to change in soil subgrade conditions is significant for lower values of modulus of subgrade reaction. |
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