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April 7, 2026EvergreenOpen Access

Optimization of Unidirectional Carbon/Epoxy Facesheets for Enhanced Flexural Strength in PVC Foam Sandwich Beam

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Authors

JHJameer HavaldarSSSachin M. ShindeSSSachin Solanke

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Overview

Explores improved flexural strength in sandwich composites using optimized carbon fiber configurations, suggesting better structural applications.

Key Points

  • The study aims to enhance the flexural strength of sandwich beams using optimized carbon fiber-reinforced face sheets with PVC foam cores.
  • Fabricated sandwich panels via vacuum infusion technique.
  • Varied stacking sequences of carbon fiber/epoxy layers: 2/2, 2/4, and 4/2.
  • Conducted four-point bending tests to assess stiffness and load capacity.
  • Performed material characterization using DSC, FTIR, SEM, and EDS.
  • The 4-top/2-bottom layer arrangement achieved the highest flexural strength of 6.52 MPa.
  • Asymmetric configurations demonstrated better damage tolerance compared to symmetric setups.
  • Identified fiber rupture and matrix cracking as main failure mechanisms through SEM analysis.

Cite This Study

Havaldar et al. (2026) studied this question.

synapsesocial.com/papers/69d49ecbb33cc4c35a22781ehttps://doi.org/10.5109/7411077
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