Results 91 to 100 of about 1,442 (188)

FINITE ELEMENT MODELING OF THE CRACK PROPAGATION IN RC BEAMS BY USING ENERGY APPROACH

open access: yesJournal of Urban and Environmental Engineering, 2014
In present study, an interface element with nonlinear spring is used to simulate cohesive zone model (CZM) in reinforced concrete (RC) beam for Mode I fracture.
Shahriar Shahbazpanahi, Chia Paknahad
doaj  

Numerical investigation of crack growth behaviour using a cohesive zone model

open access: yes, 1998
This thesis concerns modeling ductile fracture using a cohesive zone model (CZM) and finite element (FE) methods. A FE program system (FECGS), which includes a pre-processor and a post-processor, has been developed for that purpose. A simple CZM has been
GKSS-Forschungszentrum Geesthacht GmbH (Germany)   +1 more
core  

Cohesive zone modeling of interfacial delamination in PZT thin films

open access: yes, 2009
Previous experimental investigations [Shang, F., Kitamura, T., Hirakata, H., Kanno, I., Kotera, H., Terada, K., 2005. Experimental and theoretical investigations of delamination at free edge of interface between piezoelectric thin films on a substrate ...
Yan, Yabin, Shang, Fulin
core   +1 more source

Novel criterion for W-Cu interlayer joint delamination in divertor target monoblock under heating through ANSYS-CZM parametric studies

open access: yesNuclear Materials and Energy
To evaluate the possibility of delamination in the joint interface between the divertor target tungsten monoblock and the copper interlayer, the stress and displacement distributions around the joint interface under monotonic heat loading up to the ...
Yuta Tobata   +3 more
doaj   +1 more source

Assessment of Reinforcement Effect of FRP-Strengthened Shield Segment Joint Based on the CZM Model

open access: yesAdvances in Civil Engineering
As the weakest link in the shield segment, the reinforcement and repair technology of shield segment joint has received widespread attention. In this study, an finite element model utilizing a cohesive zone model (CZM) was constructed to simulate the ...
Jianjun Kuang   +5 more
doaj   +1 more source

A two-dimensional in situ fatigue cohesive zone model for crack propagation in composites under cyclic loading

open access: yes, 2016
•Formulate, implement, and validate a new non-Paris-Law-based fatigue CZM.•Provide an efficient cycle jump strategy for high-cycle fatigue simulation.•Demonstrate the fatigue CZM can be calibrated from simple fatigue fracture tests.•Demonstrate the ...
Yang, Q.D, Schesser, D, Nojavan, S
core   +1 more source

Application of a New Cohesive Zone Model in Low Cycle Fatigue

open access: yes, 2013
A cohesive zone model (CZM) for material fatigue analysis is presented. This cyclic CZM contains a damage variable and a corresponding damage evolution law.
Vormwald, Michael, Cao, Xuan
core  

A simple cohesive zone model that generates a mode-mixity dependent toughness

open access: yes, 2014
A simple, mode-mixity dependent toughness cohesive zone model (MDGc CZM) is described. This phenomenological cohesive zone model has two elements. Mode I energy dissipation is defined by a traction–separation relationship that depends only on normal ...
Reedy, E.D., Emery, J.M.
core   +1 more source

Numerical modelling of intergranular fracture in polycrystalline materials and grain size effects [PDF]

open access: yesFracture and Structural Integrity, 2011
In this paper, the phenomenon of intergranular fracture in polycrystalline materials is investigated using a nonlinear fracture mechanics approach. The nonlocal cohesive zone model (CZM) for finite thickness interfaces recently proposed by the present ...
P. Wriggers, M. Paggi
doaj  

Comparison between a Cohesive Zone Model and a Continuum Damage Model in Predicting Mode-I Fracture Behavior of Adhesively Bonded Joints

open access: yes, 2012
In this work, a comparison between a cohesive zone model and a continuum damage model in predicting the mode-I fracture behavior of adhesively bonded joints is performed on the basis of reliability and applicability.
A.S. Koumpias, K.I. Tserpes
core   +1 more source

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