Comparison of different stress-state dependent cohesive zone models applied to thin-walled structures

Scheider, Ingo; Rajendran, Manoj Kumar; Banerjee, Anuradha

doi:10.1016/j.engfracmech.2010.05.003

Cited by 17 publications

(5 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cohesive zone modeling provides alternative way to predict crack growth in ductile materials under elastoplastic loading conditions [5][6][7][8][9][10][11][12][13][14][15][16][17][18]. The cohesive zone model (CZM) was originally proposed to correct elastoplastic stresses in the fracture process zone (FPZ) ahead of the crack-tip [19,20] and was extended to reflect the local material degradation process by introducing a constitutive law, in which the traction is related to the material http://dx.doi.org/10.1016/j.ijfatigue.2015.01.008 0142-1123/Ó 2015 Elsevier Ltd. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%

Assessment of low cycle fatigue crack growth under mixed-mode loading conditions by using a cohesive zone model

Yuan

2015

International Journal of Fatigue

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Assessment of low cycle fatigue crack growth under mixed-mode loading conditions by using a cohesive zone model

Yuan

2015

International Journal of Fatigue

View full text Add to dashboard Cite

“…The match in the force initial peak could be improved by using traction-separation laws that are specialized for ductile fracture in plates and shells (e.g. [16][17][18][19][20]). Another source of discrepancy may come from the assumption that the clamping is perfectly rigid; the authors in [38] report that modeling the compliance of the test device fixture was necessary to obtain good agreement when using their ductile fracture model.…”

Section: Mode III Tearing Of a Platementioning

confidence: 99%

“…For example, important improvements in plate and shell cohesive zone constitutive models for ductile fracture have recently been proposed (cf. [16][17][18][19][20]); these models could be deployed in the framework proposed here.…”

Section: Introductionmentioning

confidence: 99%

A parallel discontinuous Galerkin/cohesive-zone computational framework for the simulation of fracture in shear-flexible shells

Talamini

Radovitzky

2017

Computer Methods in Applied Mechanics and Engineering

View full text Add to dashboard Cite

We propose a computational framework for the simulation of deformation and fracture in shells that is well suited to situations with widespread damage and fragmentation due to impulsive loading. The shell is modeled with a shear-flexible theory and discretized with a discontinuous Galerkin finite element method, while fracture is represented with a cohesive zone model on element edges. A key feature of the method is that the underlying shear-flexible shell theory enables the description of transverse shear fracture modes, in addition to the in-plane and bending modes accessible to Kirchhoff-Love thin shell formulations. This is especially important for impulsive loading conditions, where shear-off failure near stiffeners and supports is common. The discontinuous Galerkin formulation inherits the scalability properties demonstrated previously for large-scale simulation of fracture in solids, while avoiding artificial elastic compliance issues that are common in other cohesive model approaches. We demonstrate the ability of the framework to capture the transverse shear fracture mode through numerical examples, and the parallel computation capabilities of the method through the simulation of explosive decompression of the skin of a full-scale passenger aircraft fuselage.

show abstract

“…7 are taken A=1.4 and B=-0.2, which gives the best approximation to the experimental results. In fracture simulation by using the CZM, the maximum traction seems more sensitive to the computational results than the cohesive energy [11,12]. To obtain the correlation between the maximum traction and the stress triaxiality T max (), monotonic crack propagation tests are performed on side-grooved C(T) specimens and rod bar specimens.…”

Section: Identification Of the Cohesive Parametersmentioning

confidence: 99%

Cohesive Zone Modeling for 3D Ductile Crack Propagation

Xiao

Yuan

2016

AMM

View full text Add to dashboard Cite

Computational modeling of three-dimensional crack propagation in very ductile materials is still a challenge in fracture mechanics analysis. In the present work a new stress-triaxiality-dependent cohesive zone model (TCZM) is proposed to describe elastic-plastic fracture process in full three-dimensional specimens. The cohesive parameters are identified as a function of the stress triaxiality from ductile fracture experiments. The predictions of TCZM show good agreement with the experimental results for both side-grooved C(T) specimen and rod bar specimen.

show abstract

Comparison of different stress-state dependent cohesive zone models applied to thin-walled structures

Cited by 17 publications

References 17 publications

Assessment of low cycle fatigue crack growth under mixed-mode loading conditions by using a cohesive zone model

Assessment of low cycle fatigue crack growth under mixed-mode loading conditions by using a cohesive zone model

A parallel discontinuous Galerkin/cohesive-zone computational framework for the simulation of fracture in shear-flexible shells

Cohesive Zone Modeling for 3D Ductile Crack Propagation

Contact Info

Product

Resources

About