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Journal of Composite Materials
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Influence of Delamination Growth and Contact Phenomena on the Compressive Behaviour of Composite Panels

P. Perugini

C.I.R.A. (Italian Aerospace Research Centre), via Mairise, Capua (CASERTA) 81043, Italy

A. Riccio

Department of Aerospace Engineering, II University of Naples, via Roma 29, Aversa (CASERTA) 81031, Italy

F. Scaramuzzino

Department of Aerospace Engineering, II University of Naples, via Roma 29, Aversa (CASERTA) 81031, Italy

A numerical analysis, providing a realistic insight on the compressive behaviour of composite panels with through-the-width delaminations, was performed by means of an in-house Finite Element Method (FEM) based code able to analyse the influence of delaminations' growth and contact phenomena on the load carrying capability of these kinds of structures. First of all a sensitivity analysis was carried out to underline the influence of delaminations' position along the thickness and their growth on panels' compressive behaviour. Then comparisons with experimental data available in bibliography were performed to test the effectiveness of new numerical techniques. Finally a panel with two delaminations was investigated to point out the need of a numerical tool able to take into account contacts between sublaminates in order to evaluate the real structure's response under compressive load.

Key Words: composite materials • energy release rate • delamination growth • contact • FEM analysis • virtual crack closure technique • buckling

Journal of Composite Materials, Vol. 33, No. 15, 1433-1456 (1999)
DOI: 10.1177/002199839903301504
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A. Riccio and M. Gigliotti
A Novel Numerical Delamination Growth Initiation Approach for the Preliminary Design of Damage Tolerant Composite Structures
Journal of Composite Materials, August 1, 2007; 41(16): 1939 - 1960.
[Abstract] [PDF]