laminated composites

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• Published Subscription Original Research 2 Jun 2026

  Structural Performance Evaluation of Circular Perforated Plates under Mechanical Loading

  By Pavan Kishorre ML, D.V. Raghunatha Reddy, G.Srinivasa Gupta, Ramagopala Charyulu

  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, …

  Published in Journal of Polymer & Composites · Vol. 14, Issue 4, 2026 · pp. 1–20 Read article →

• Published Subscription Original Research 4 Apr 2026

  Free Vibration Analysis of Circular Perforated Laminated Plates

  By M. L. Pavan Kishore, K. Manohar Reddy, M. Avinash, G. Srinivasa Gupta

  Abstract: This study investigates the free vibration characteristics of circular perforated laminated composite plates. A finite element model is created to analyze the effects of perforation patterns, hole sizes, and laminate configurations on the natural frequencies and mode shapes of these structures. The model incorporates shear deformation theory and accounts for the anisotropic nature of composite materials. Parametric studies were held to examine how varying perforation geometries, including hole diameter, spacing, …

  Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 281–296 Read article →