Numerical simulation of delamination growth in layered composite plates. (English) Zbl 0944.74068
Summary: We describe a numerical method to simulate the delamination growth in layered composite plates within tbe framework of fracture mechanics. The method is based on the search for stationary points of the total energy of the plate (the sum of the mechanical energy and the fracture energy associated with the delamination growth). The resulting nonlinear problem is solved by Newton’s method. We derive analytically expressions for the first and second derivatives of energy with respect to the crack front displacement. Numerical examples are presented for DCB specimens loaded in mode I.
MSC:
| 74R99 | Fracture and damage |
| 74E30 | Composite and mixture properties |
| 74S05 | Finite element methods applied to problems in solid mechanics |
| 74K20 | Plates |
Keywords:
stationary points of total energy of plate; delamination growth; layered composite plates; fracture mechanics; Newton’s method; first and second derivatives of energy; crack front displacement; DCB specimens; mode IReferences:
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