The effect of ply blocking on near-edge impact damage mechanisms

S. Hua, N. Dubary, C. Bouvet, A. T. Rhead

Research output: Contribution to conferencePaperpeer-review


Out-of-plane impact near the edge of composite plates has received little attention in the research literature but is a recognized damage mode for aerospace structures and can lead to significant reductions in compressive strength. In this paper, a combined high fidelity Discrete Ply Finite Element Analysis (DPFEA) and quasi-static in-situ X-ray Computed Tomography (XRCT) approach is used to provide insight into the processes driving damage formation in near edge impact of a [(±45)3(03/90)2/02]S laminate. Comparison of DPFEA and XRCT results highlight the significance of 0n/90 interfaces in the development of the most extensive delaminations. Ply blocking is seen to contain damage to the inner 50% of plies in the laminate. Discrepancies are seen between the XRCT and DPFEA results as a consequence of the extent of numerical modelling of the experimental boundary conditions and the need for further consideration of the effect of compression on fracture.

Original languageEnglish
Number of pages12
Publication statusPublished - 1 Jan 2017
Event21st International Conference on Composite Materials, ICCM 2017 - Xi'an, China
Duration: 20 Aug 201725 Aug 2017


Conference21st International Conference on Composite Materials, ICCM 2017


  • Damage tolerance
  • FEA
  • Impact damage
  • X-ray CT

ASJC Scopus subject areas

  • Engineering(all)
  • Ceramics and Composites


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