Study of the machining induced damage in UD-CFRP laminates with various fibre orientations: FE assessment

F. Cepero-Mejías, J. L. Curiel-Sosa, K. Kerrigan, V. A. Phadnis

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


Finite elements (FE) provide an excellent and low-cost approach in the assessment of composite machining induced damage. This article is focused on the evaluation of the damage underlying the machined surface through the development of a novel 3D FE model in composite machining. Sub-surface damage of UD-CFRP with fibre orientations from 0o to 90o is evaluated. An algorithm to assess composite damage evolution and chip formation is inserted via user-defined subroutine. Damage initiation is determined using Hashin's failure criteria for fibre damage modes, while matrix damage modes are assessed via Puck's failure criteria. Subsequent damage evolution is modelled using an energy-based linear damage degradation law. Numerical results reveal relevant advances in the prediction of the damage induced underlying the machined surface for fibre orientations from 60o to 90o obtained in previous investigations.

Original languageEnglish
Pages (from-to)366-371
Number of pages6
JournalProcedia CIRP
Publication statusPublished - 31 May 2020
Externally publishedYes
Event5th CIRP Conference on Surface Integrity, CSI 2020 -
Duration: 1 Jun 20205 Jun 2020

Bibliographical note

Funding Information:
This work is funded by the EPSRC Industrial Doctoral Centre (EP/L016257/1) of Sheffield.

Publisher Copyright:
© 2020 The Author(s).


  • Composite
  • Finite element
  • Machining
  • Subsurface damage

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering


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