A three-dimensional self-adaptive cohesive zone model for interfacial delamination

2011 ◽  
Vol 200 (49-52) ◽  
pp. 3540-3553 ◽  
Author(s):  
M. Samimi ◽  
J.A.W. van Dommelen ◽  
M.G.D. Geers
Keyword(s):  
Cohesive Zone ◽  
Cohesive Zone Model ◽  
Three Dimensional ◽  
Zone Model ◽  
Interfacial Delamination ◽  
Self Adaptive

scholarly journals Numerical Study of the Fatigue Crack in Welded Beam-To-Column Connection Using Cohesive Zone Model

2006 ◽  
Vol 324-325 ◽  
pp. 847-850 ◽  
Author(s):  
Cedric Lequesne ◽  
A. Plumier ◽  
H. Degee ◽  
Anne Marie Habraken
Keyword(s):  
Cohesive Zone ◽  
Cohesive Zone Model ◽  
Numerical Study ◽  
Damage Model ◽  
Three Dimensional ◽  
Fatigue Behaviour ◽  
Bending Test ◽  
Zone Model ◽  
Moment Resisting Frame ◽  
Moment Resisting

The fatigue behaviour of the welded beam-to-column connections of steel moment resisting frame in seismic area must be evaluated. The cohesive zone model is an efficient solution to study such connections by finite elements. It respects the energetic conservation and avoids numerical issues. A three-dimensional cohesive zone model element has been implemented in the home made finite element code Lagamine [1]. It is coupled with the fatigue continuum damage model of Lemaître and Chaboche [2]. The cohesive parameters are identified by the inverse method applied on a three points bending test modelling.

scholarly journals The Mechanical Mechanism and Influencing Factors of Ice Adhesion Strength on Ice-Phobic Coating

2021 ◽  
Vol 9 (3) ◽  
pp. 315
Author(s):  
Qiang Xie ◽  
Tianhui Hao ◽  
Chao Wang ◽  
Zhenhang Kang ◽  
Zhonghua Shi ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Cohesive Zone ◽  
Cohesive Zone Model ◽  
Polymer Network ◽  
Three Dimensional ◽  
Interpenetrating Polymer Network ◽  
Interface Debonding ◽  
Zone Model ◽  
Ice Accretion ◽  
Elastic Film

Ice accretion can cause problems on polar ships, ocean platforms, and in other marine industries. It is important to understand the interface debonding behavior between ice and the surface of equipment. In this work, we created a mechanical model to analyze the interface debonding behavior between a square-based ice cuboid and an elastic coating base, using contact mechanics and fracture mechanics. Three-dimensional (3D) finite element (FE) simulation was used to simulate the interface debonding for normal and shear separation. A bilinear cohesive zone model (CZM) was used to simulate the interface between the ice cuboid and the elastic coating. We investigated the effect of the elastic modulus E of an elastic film on the critical detachment force Fc for normal and shear separation. The results showed that Fc increases with an increase of the elastic modulus of the elastic film. When E exceeds a certain level, Fc achieves a constant value and then remains stable. Finally, a series of epoxy/polydimethylsiloxane (PDMS) interpenetrating polymer-network (IPN) gel coatings with different elastic moduli were prepared. The ice tensile and shear adhesion strengths (σice and τice) of the coatings were measured. The results were roughly consistent with the results of the numerical simulation when E < 1 MPa.

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