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Inter-relationships among stiffness matrix components for general laminates with transverse cracks in oblique plies.
- Source :
- Archive of Applied Mechanics; Feb2019, Vol. 89 Issue 2, p329-341, 13p
- Publication Year :
- 2019
-
Abstract
- In this paper, nine inter-relationships linking the stiffness matrix components of symmetrical or unsymmetrical laminates having transverse matrix cracks in some of the off-axis plies is presented. The crack closure condition under membrane and bending deformations is established and used to obtain the inter-relationships. The derived crack closure conditions and inter-relationships are validated using a numerical model based on previous work by the authors. These inter-relationships include the eighteen stiffness matrix components and are exact within the assumptions made in the classical lamination theory. When using a two-scale finite element-based model, six loading cases would be needed to obtain the complete stiffness matrix. With the obtained inter-relationships, only four loading cases would be needed, thus saving a third of the total amount of information and computing time. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09391533
- Volume :
- 89
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Archive of Applied Mechanics
- Publication Type :
- Academic Journal
- Accession number :
- 134786915
- Full Text :
- https://doi.org/10.1007/s00419-018-1470-y