X-FEM ANALYSIS OF DELAMINATION BETWEEN FRP LAMINATES AND CONCRETE BY NEW ORTHOTROPIC ENRICHMENT FUNCTIONS
Publish place: 1st International Conference on Concrete Technology
Publish Year: 1388
Type: Conference paper
Language: English
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Document National Code:
ICCT01_174
Index date: 10 September 2009
X-FEM ANALYSIS OF DELAMINATION BETWEEN FRP LAMINATES AND CONCRETE BY NEW ORTHOTROPIC ENRICHMENT FUNCTIONS abstract
The extended finite element method (XFEM), which can simplify and enhance the modeling of strong and weak discontinuities in material and geometric behaviours, is applied to stress analysis of composite laminates bonded to concrete, containing interlaminar delamination. Newly developed set of orthotropic enrichment functions are utilized in XFEM analysis of linear elastic fracture mechanics. Interlaminar crack-tip enrichment functions are derived as those that span the analytical asymptotic displacement fields for a traction free interfacial crack. Combined mode I and mode II loading conditions are studied. The domain interaction integral approach is also adopted in order to determine the mode I and II stress intensity factors.
X-FEM ANALYSIS OF DELAMINATION BETWEEN FRP LAMINATES AND CONCRETE BY NEW ORTHOTROPIC ENRICHMENT FUNCTIONS Keywords:
X-FEM ANALYSIS OF DELAMINATION BETWEEN FRP LAMINATES AND CONCRETE BY NEW ORTHOTROPIC ENRICHMENT FUNCTIONS authors
S Esna Ashari
School of Civil Engineering, University of Tehran, Tehran, Iran
S Mohammadi
School of Civil Engineering, University of Tehran, Tehran, Iran
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