The paper analyses the problem of an interfacial crack propagating between two elastic layers, generally different the one from the other for thickness and material. The layers are modelled as shear-deformable laminated beams of finite length, connected one another by an interface of negligible thickness, and subjected to general loads at their ends. The problem is formulated through a set of six differential equations. In the simplest case of a linearly elastic interface, the problem is analytically solved by adopting the interfacial stresses as principal unknowns. Thus, explicit expressions for the interfacial stresses, internal forces, displacements, energy release rate, and mode mixity angle are determined.
Modelling of interfacial fracture of layered structures
BENNATI, STEFANO;VALVO, PAOLO SEBASTIANO
2010-01-01
Abstract
The paper analyses the problem of an interfacial crack propagating between two elastic layers, generally different the one from the other for thickness and material. The layers are modelled as shear-deformable laminated beams of finite length, connected one another by an interface of negligible thickness, and subjected to general loads at their ends. The problem is formulated through a set of six differential equations. In the simplest case of a linearly elastic interface, the problem is analytically solved by adopting the interfacial stresses as principal unknowns. Thus, explicit expressions for the interfacial stresses, internal forces, displacements, energy release rate, and mode mixity angle are determined.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
