Abstract
Interface damage and delamination is usually accompanied by frictional slip at contacting interfaces under compressive normal stress. Under tensile stress the separation and opening mode develops. The present study provides a simplified analysis of progressive interface failure under applied in plane tractions and normal compressive traction. The cohesive crack model is used to simulate damage frictional traction present at contact. Both monotonic and cyclic loadings are considered for an elastic plate bonded to a rigid substrate by means of cohesive interface. The analysis of progressive delamination process revealed three solution types, namely short, medium and long plate solutions. For cyclic loading the states of frictional slip accompanied by shake down or incremental failure are distinguished. The finite element solutions confirm the validity of simplified analysis. The thermal loading case is studied separately under monotonic and cyclic temperature loading history. The cracking of plate is now accompanied by frictional slip and progressive delamination of the interface layer. The analysis predicts the cracking pattern and the size of delaminated zones.
Published Version
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