Structural Performance Evaluation of Circular Perforated Plates under Mechanical Loading

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Year : 2026 | Volume : 14 | 03 | Page :
    By

    Pavan Kishorre ML,

  • D.V. Raghunatha Reddy,

  • G.Srinivasa Gupta,

  • Ramagopala Charyulu,

  1. , Department of Mechanical Engineering, Faculty of Science and Technology (Icfai Tech), Icfai Foundation for Higher Education, Hyderabad, Telangana, India
  2. , Department of Mechanical Engineering, Sridevi Women’s Engineering College, Hyderabad, Telangana, India
  3. , VNR Vignanajyothi Institute of Engineering and Technology, Pragati Nagar, Hyderabad, Telangana, India
  4. Faculty Associate, Department of Mechanical Engineering, Faculty of Science and Technology (Icfai Tech), Icfai Foundation for Higher Education, Hyderabad, Telangana, India

Abstract

Circular perforated plates are structurally critical components in aerospace, automotive, and marine sectors, where perforation-induced stress concentrations govern failure under mechanical loading. This study conducts a systematic finite element analysis of stress distribution, deformation, and interlaminar behavior in aluminum and glass-epoxy laminates ([−45/45/90/0]S and [−45/45/90/0]AS) under uniform transverse pressure with clamped-free boundary conditions. Four perforation configurations—no hole, central hole, single-series, and 25-hole grid—were evaluated using ANSYS Shell-181, verified against Kirchhoff–Love, Classical Lamination Theory, and Lekhnitskii–Savin analytical benchmarks. Aluminum stress concentration factors ranged from 2.89 to 3.58 with a maximum 4.06% error, while composite laminates yielded elevated Kt values of 3.73 to 4.56 due to orthotropic stiffness asymmetry. The antisymmetric layup recorded the peak Von Mises stress of 486.01 MPa and interlaminar shear stress of 152.96 MPa, confirming that bending-extension coupling critically intensifies damage near perforation boundaries. A stress reversal between the single-series and 25-hole grid configurations revealed a transition from stress-concentration-governed to net-section-governed failure mechanics. Interlaminar normal stress peaked at 24.24 MPa for the single-series arrangement, identifying it as the highest delamination-risk configuration among all cases studied. Mesh convergence validated discretization accuracy below 2% error, with FEM-analytical agreement substantiating the computational framework’s reliability across the full parametric space. Results provide quantitative design guidance favoring symmetric stacking sequences and distributed perforation layouts for structurally efficient, damage-tolerant lightweight panel applications.

Keywords: Ansys solver, Circular Plate, Deformations, Finite Element Method, Laminated Composites, Stress analysis.

How to cite this article:
Pavan Kishorre ML, D.V. Raghunatha Reddy, G.Srinivasa Gupta, Ramagopala Charyulu. Structural Performance Evaluation of Circular Perforated Plates under Mechanical Loading. Journal of Polymer & Composites. 2026; 14(03):-.
How to cite this URL:
Pavan Kishorre ML, D.V. Raghunatha Reddy, G.Srinivasa Gupta, Ramagopala Charyulu. Structural Performance Evaluation of Circular Perforated Plates under Mechanical Loading. Journal of Polymer & Composites. 2026; 14(03):-. Available from: https://journals.stmjournals.com/jopc/article=2026/view=245604


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Ahead of Print Subscription Original Research
Volume 14
03
Received 14/05/2026
Accepted 18/05/2026
Published 02/06/2026
Publication Time 19 Days
12

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