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Separation of delamination modes in composite beams with symmetric delaminations
AbstractDelaminated composite beam under general edge loading conditions is studied. Based on a technical engineering theory an analytical procedure for calculation of strain energy release rate and its separation into modes I and II of delamination is presented. By choosing a suitable displacement field based on second-order shear-thickness deformation theory and using the principle of minimum total potential energy, the equations of equilibrium are obtained along with the appropriate boundary conditions. The J integral and its definition for different modes of fracture is used for calculation of strain energy release rate and its separation into different modes. Double cantilever beam (DCB) problem is a special case of this general problem in which loading is in mode I of fracture. The results of this method shows good agreement with FEM (i.e., finite element method) results and experimental data.
Separation of delamination modes in composite beams with symmetric delaminations
AbstractDelaminated composite beam under general edge loading conditions is studied. Based on a technical engineering theory an analytical procedure for calculation of strain energy release rate and its separation into modes I and II of delamination is presented. By choosing a suitable displacement field based on second-order shear-thickness deformation theory and using the principle of minimum total potential energy, the equations of equilibrium are obtained along with the appropriate boundary conditions. The J integral and its definition for different modes of fracture is used for calculation of strain energy release rate and its separation into different modes. Double cantilever beam (DCB) problem is a special case of this general problem in which loading is in mode I of fracture. The results of this method shows good agreement with FEM (i.e., finite element method) results and experimental data.
Separation of delamination modes in composite beams with symmetric delaminations
Hamed, M.A. (author) / Nosier, A. (author) / Farrahi, G.H. (author)
2005-03-09
11 pages
Article (Journal)
Electronic Resource
English
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