Webtraining – Modeling adhesives with Abaqus

– For 4RealSim Customers –
Are you ready to enhance your Abaqus skills? Join us for an informative webtraining session where 4RealSim will introduce cohesive modeling, explore the different methods, and explain how it is integrated into Abaqus. Additionally, we will provide an introduction to the Virtual Crack Closure Technique (VCCT).

At 4RealSim, we believe in continuous learning and regularly organize webtrainings to help our customers stay ahead. This session will enable you to:
– Gain insights into cohesive modeling strategies in Abaqus
– Increase your confidence in using Abaqus
– Become more efficient in your simulation tasks

Cohesive modeling strategies

Abaqus provides two primary methods for modeling adhesive behavior: cohesive elements and contact cohesive behavior.

Cohesive elements

Cohesive elements are useful for modeling adhesives, bonded interfaces, gaskets, and rock fractures. Their constitutive response depends on the specific application, based on assumptions about deformation and stress states appropriate for each area. The mechanical response can be broadly classified into:
– Continuum description of the material
– Traction-separation description of the interface
– Uniaxial stress state for modeling gaskets and/or laterally unconstrained adhesive patches

Contact cohesive behavior

Contact cohesive behavior can model bonded interfaces, with or without the possibility of damage and failure of the bond. It also models regular contact behavior where the interface is not bonded. This method is typically easier to define than using cohesive elements and allows simulation of a wider range of cohesive interactions, such as two sticky surfaces coming into contact during an analysis.

VCCT (Virtual Crack Closure Technique)

VCCT is used to investigate the onset and propagation of cracks in quasi-static problems. Based on the principles of linear elastic fracture mechanics (LEFM), VCCT is appropriate for problems involving brittle crack propagation along predefined surfaces. It operates on the assumption that the strain energy released when a crack extends by a certain amount equals the energy required to close the crack by the same amount.

Who should attend the 4RealSim Abaqus webtraining?

This webtraining is intended for 4RealSim customers who want to deepen their understanding of cohesive modeling in Abaqus.