Analytical Study on Dynamic Response Due to a Moving Load on Distinctly Characterized Orthotropic Half-Spaces Under Different Physical Conditions with Comparative Approach

• Published in: Arabian journal for science and engineering (2011) Vol. 44; no. 5; pp. 4863 - 4883
• Main Authors: Singh, A. K., Pal, M. K., Negi, A., Mistri, K. Ch
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-05-2019; Springer Nature B.V
• Subjects: Carbon fiber reinforced plastics; Compressive properties; Dynamic response; Elastic half spaces; Engineering; Functionally gradient materials; Graphite fiber reinforced plastics; Graphite-epoxy composites; Humanities and Social Sciences; Initial stresses; Irregularities; Laminates; Moving loads; multidisciplinary; Parameters; Physical properties; Research Article - Civil Engineering; Science; Viscoelasticity; Orthotropic–magnetoelastic; Functionally graded; Orthotropic–viscoelastic; Moving load; Induced stress
• ISSN: 2193-567X; 1319-8025; 2191-4281
• DOI: 10.1007/s13369-018-3577-4

The present article analyzes the induced compressive, shear and tensile stresses due to a moving load on three distinctly characterized irregular orthotropic half-spaces, viz. functionally graded orthotropic viscoelastic half-space (Case-I), functionally graded initially stressed orthotropic elastic half-space (Case-II) and orthotropic magnetoelastic half-space (Case-III) under hydrostatic initial stress. The expressions for said induced stresses are deduced in closed form using analytical approach. The influences of various physical parameters, viz. maximum depth of irregularity, functionally gradedness, irregularity factor, initial stress, magnetoelastic coupling parameter, hydrostatic initial stress and frictional coefficient on induced stresses for concerned cases, have been investigated with a comparative analysis. To depict the outcomes numerically, the half-spaces comprised of Carbon fiber, Prepreg and T300/5208/graphite/epoxy material have been taken into account and the observations are highlighted. Moreover, some notable characteristics have been outlined and delineated through graphs.