Results 41 to 50 of about 727,752 (137)

Measurement and simulation of strain fields around crack tips under mixed-mode fatigue loading [PDF]

open access: yesFracture and Structural Integrity, 2015
For various configurations examined in a series of fatigue experiments on thin-walled tubes under tension and torsion, the experimental results – crack path, crack growth life, near crack tip deformations, and crack closure – are measured and compared to
Y. Hos, M. Vormwald, J.L.F. Freire
doaj   +2 more sources

Numerical implementation of a multiaxial cyclic plasticity model for the Local Strain Method in low cycle fatigue

open access: yesFracture and Structural Integrity, 2014
Very often computations on structural elements or machine components subjected to variable loading require using an advanced finite element model. This paper reports the numerical implementation of a model for multiaxial cyclic elasticplastic behaviour ...
C. Madrigal, V. Chaves, A. Navarro
doaj  

Integrating the Chaboche Hardening Model into Phase Field Frameworks: A Numerical Study of Fatigue Crack Growth in S275 Mild Steel [PDF]

open access: yesMATEC Web of Conferences
In this research work, we present an implementation of the Chaboche hardening law within a phase field model to predict fatigue crack growth under cyclic plasticity in metals.
Zayani Iheb, Hamdi Adel, Mansouri Khalil
doaj   +1 more source

A new accelerated technique for validation of cyclic plasticity models

open access: yesMATEC Web of Conferences, 2018
This contribution presents a new methodology of fatigue tests evaluation based on digital image correlation application. The full-field strain analysis brings the possibility of 3D strain measurement evaluation on a curved part of specimen standardly ...
Halama Radim   +3 more
doaj   +1 more source

Safe structural design for fatigue and creep using cyclic yield strength [PDF]

open access: yes, 2014
This study proposes cyclic yield strength (CYS, σ_cy) as a potential characteristic of safe design for structures operating under fatigue and creep conditions.
Gorash, Yevgen, Mackenzie, Donald
core   +3 more sources

Numerical simulation of ratcheting and fatigue behaviour of mitred pipe bends under in-plane bending and internal pressure [PDF]

open access: yes, 2013
This paper investigates the ratcheting and fatigue behaviour of 90 degree single unreinforced mitred pipe bends subjected to a cyclic in-plane closing moment with a non-zero mean value and constant internal pressure. An experiment was conducted to induce
Wood, James   +3 more
core   +4 more sources

The role of type 4 phosphodiesterases in generating microdomains of cAMP: Large scale stochastic simulations [PDF]

open access: yes, 2010
Cyclic AMP (cAMP) and its main effector Protein Kinase A (PKA) are critical for several aspects of neuronal function including synaptic plasticity. Specificity of synaptic plasticity requires that cAMP activates PKA in a highly localized manner despite ...
Terrin, A.   +35 more
core   +2 more sources

A numerical study of crack shielding and deflection under extensive plasticity [PDF]

open access: yes, 2009
Experimentally observed crack deflection events in multi-layered material systems, occurring even under pure mode-I loading, are here simulated and explained through elasto-plastic finite element modelling.
Reed, Philippa A.S.   +2 more
core   +1 more source

Comparison of two models of numerical simulation of low cycle fatigue of a plastic material with small grid inclusions [PDF]

open access: yes, 2013
Theory of Cells and a numerical FE method based on strain cyclic plasticity, damage model and technology of died elements were used for a prediction of the fatigue life of a metal matrix composite material.
Azmetov, Khakim   +2 more
core  

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