The effect of facesheet/core delamination in sandwich structures under transverse loading
Source abstract
Abstract
The present work is concerned with the problem of a delamination crack along the facesheet/core interface of a sandwich structure which is submitted to transverse loading. In contrast to a loading by compressive inplane forces or a bending loading the presumed transverse loading does not lead to buckling of the delaminated facesheet but it may provoke further delamination crack growth. As a kind of crack driving force the energy release rate is studied for a virtual crack growth by means of Irwin's crack closure integral within a finite element modelling. The resultant energy release rate is dependent on various geometrical and material parameters which is investigated in some detail.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Structural Analysis of Composite Materials · Textile materials and evaluations
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References (12)
Show source-provided references
1. Strain-energy release rate analysis of plates with postbuckled delaminations10.1177/002199838902300705 ↗
2. Heitzer J. Buckling and failure of thin elliptical delaminations in composites. In: Proceedings of the International Conference on Spacecraft Structures and Mechanical Testing, ESA SP-321, 1991 April 24–26; Noordwijk, The Netherlands. p. 383–9
3. Analysis of a laminate with a postbuckled embedded delamination, including contact effects10.1177/002199839202601008 ↗
4. Postbuckling of laminated composites with delaminations10.2514/3.12752 ↗
5. Efficient modeling of postbuckling delamination growth in composite laminates using plate elements10.2514/3.13038 ↗
6. Hadi BK. Buckling and wrinkling analysis of debonded sandwich structures. In: Proceedings of the Fifth International Conference on Sandwich Construction, 2000 September 5–7; Zurich, Switzerland. p. 221–8
7. A finite element calculation of stress intensity factors by a modified crack closure integral10.1016/0013-7944(77)90013-3 ↗
8. A virtual crack-closure technique for calculating stress intensity factors for cracked three dimensional bodies10.1007/BF00035103 ↗
9. Computational analysis of interlaminar fracture of laminated composites10.1023/A:1007385126008 ↗
10. Interfacial fracture in sandwich laminates10.1016/S0266-3538(99)00065-2 ↗
11. Irwin GR. Fracture. In: Flügge S, editor. Handbuch der Physik 6: Elastizität und Plastizität. Berlin: Springer; 1958. p. 55110.1007/978-3-642-45887-3_5 ↗
12. ABAQUS/Standard User's Manual, Version 5.8. Hibbitt, Karlsson and Sorensen, Inc., USA, 1998