5-1 – Cohesive-zone Modelling – Advances and Challenges
Albert Turón (Universitat de Girona), Giulio Alfano (Brunel University), Bent F. Sørensen (Technical University of Denmark)
Cohesive-zone models have been widely used for modelling the onset and growth of cracks in structures. The latest versions of most common nonlinear finite element codes incorporate different technologies that use the cohesive-zone model approach to model fracture problems.
However, there are still some challenges to be addressed in order to improve the reliability and spread the applicability of these technologies. Cohesive zone model formulations depend on different aspects, such as the loading type, ageing/environmental effects or material system and the application of the cohesive zone model approach embraces different fields, leading the scientific community to actively work on the cohesive zone model approach.
This mini-symposium is aimed at highlighting the current challenges and presenting the lasts developments proposed by the research community in the field of cohesive-zone modelling. The particular topics to be covered in this mini-symposium, but not limited to, include:
Time dependent behaviour, fatigue (high-cycle, low-cycle, thermal…) and creep.
Ageing and/or environmental effects.
Friction and dilatancy
Interaction with damage/plasticity in the bulk material.
Experimental determination of cohesive laws
Model assessment and reliability, sensitivity to the model parameters.