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1 Engineering Transactions

1 2018

1 Rizov V. I.

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Analysis of delamination in two-dimensional functionally graded multilayered beam with non-linear behaviour of material

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Rizov V. I.

tom Vol. 66, iss. 1

61--78

An analytical study of delamination fracture in a two-dimensional functionally graded multilayered beam exhibiting material non-linearity is carried-out. The beam is made of adhesively bonded horizontal layers. The material is two-dimensional functionally graded in the cross-section of each layer. A delamination crack is located symmetrically with respect to the beam mid-span. The delamination is studied in terms of the strain energy release rate. The solution derived is compared with the J-integral for verification. The effects of material gradients, the crack location along the beam height and the material non-linearity on the delamination fracture are investigated. The distribution of the J-integral value along the crack front is analysed too.