STRESS CONCENTRATION IN ISOTROPIC & ORTHOTROPIC COMPOSITE PLATES WITH CENTER CIRCULAR HOLE SUBJECTED TO TRANSVERSE STATIC LOADING

Abstract

The present study brings out the thorough analysis of isotropic and orthotropic fixed rectangular plate with center circular hole under transverse static loading condition. In this paper influence of stress concentration and deflection due to singularity for isotropic and orthotropic composite materials under different parametric conditions is obtained. The effect of thickness -to- width of plate (T/A) and diameter-to-width (D/A) ratio upon stress concentration factor (SCF) for different stresses were studied. An isotropic and one composite material were considered for analysis to determine the variation of SCF with elastic constants. Deflection in transverse direction were calculated and analyzed. Results are presented in graphical form and discussed. Three-dimensional finite element models were created using ANSYS software. Results showed that maximum stress appear near the vicinity of the hole at the upper and lower portions of the plate. The effect of material properties, (E1/E2) on SCF for stresses along x, y and z axis is established thorough this analysis.

Square Openings as Sources of Stress Concentration in Parts of Machines and Devices

“…A large number of researchers have contributed to the study of the distribution and concentration of stress in parts of weakened openings of different shapes, made of both isotropic and anisotropic materials [9][10][11][12][13][14][15][16][17][18][19]. Silpa et al [20] carried out a structural analysis of thin isotropic and orthotropic plates with a circular opening using the finite element method and Rahman [21] studies the stress distribution in uniaxial stressed steel plates of the finite dimensions weakened by rectangular aperture using the finite element method.…”

A novel method for estimation of stress concentration factor of central cutouts located in orthotropic plate

“…They checked the plate under uniaxial tension. Banerjee et al, studied stress distribution around the circular cutout in an orthotropic plate under transverse static loading using the numerical method [18]. They examined the effects of material, cutout diameter, and thickness plate in orthotropic plates on stress concentration.…”