6533b859fe1ef96bd12b77f2

RESEARCH PRODUCT

A thermodynamically consistent cohesive-frictional interface model for mixed mode delamination

Guido BorinoGiuseppe Vincenzo MarannanoFrancesco Parrinello

subject

Work (thermodynamics)Materials scienceConstitutive equation02 engineering and technologyPlasticity01 natural sciencesThermodynamic0203 mechanical engineeringDamage mechanicsMechanics of MaterialGeneral Materials Science0101 mathematicsComposite materialSettore ING-IND/15 - Disegno E Metodi Dell'Ingegneria IndustrialeMechanical EngineeringCohesive-frictional interfaceDelaminationMode (statistics)Fracture mechanicsMechanicsStrength of materials010101 applied mathematics020303 mechanical engineering & transportsMechanics of MaterialsMixed-mode delaminationMaterials Science (all)Settore ICAR/08 - Scienza Delle Costruzioni

description

Abstract A new interface constitutive model based on damage mechanics and frictional plasticity is presented. The model is thermodynamically consistent, it is able to accurately reproduce arbitrary mixed mode debonding conditions and it is proved that the separation work is always bounded between the fracture energy in mode I and the fracture energy in mode II. Analytical results are given for proportional loading paths and for two non-proportional loading paths, confirming the correct behavior of the model for complex loading histories. Numerical and analytical solutions are compared for three classical delamination tests and frictional effects on 4ENF are also considered.

yearjournalcountryeditionlanguage
2016-03-01Engineering Fracture Mechanics
https://doi.org/10.1016/j.engfracmech.2015.12.001