Results 11 to 20 of about 9,925 (261)
A discontinuous Galerkin method for cohesive zone modelling [PDF]
Finite Elements in Analysis and Design, 2015 We propose a discontinuous finite element method for small strain elasticity allowing for cohesive zone modeling. The method yields a seamless transition between the discontinuous Galerkin method and classical cohesive zone modeling. Some relevant numerical examples are presented.
Peter Hansbo, Kent Salomonsson
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A fractional rate‐dependent cohesive‐zone model [PDF]
International Journal for Numerical Methods in Engineering, 2015 SummaryThis paper presents a novel formulation of a hereditary cohesive zone model able to effectively capture rate‐dependent crack propagation along a defined interface, over a wide range of applied loading rates and with a single set of seven input parameters only, as testified by the remarkable agreement with experimental results in the case of a ...
Musto, M, Alfano, G
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Simplified approach for ductile fracture mechanics SSTT and its application to Eurofer97
Nuclear Materials and Energy, 2021 The determination of fracture-mechanical properties is often very challenging, because the available standards like ASTM E1820 need specific size-requirements for the specimen dimensions to obtain valid fracture toughness.
Michael Mahler +2 more
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Stress-state dependent cohesive model for fatigue crack growth [PDF]
Fracture and Structural Integrity, 2016 In the cohesive framework, a stress-state dependent cohesive model, combined with an irreversible damage parameter has been used in simulation of fatigue crack growth initiation and continued growth.
R. Shravan Kumar +4 more
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The Cohesive Zone Model for Fatigue Crack Growth
Advances in Mechanical Engineering, 2013 In the past decade, the cohesive zone model has been receiving increasing attention as a powerful tool for the simulation of fatigue crack growth. When applying cohesive zone model to fatigue fracture problem, three aspects should generally be taken into
Jinxiang Liu, Jun Li, Bo Wu
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A damage criterion based on energy balance for isotropic cohesive zone model [PDF]
Journal of Theoretical, Computational and Applied Mechanics, 2022 The objective of this paper is to present an energy damage criterion for cohesive zone models (CZM) within the framework of the non-linear thermodynamics of irreversible processes (TIP).
André Chrysochoos +2 more
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Frequency-Dependent Cohesive Zone Models for Fatigue
Journal of Physics: Conference Series, 2017 This paper is concerned with a new cohesive zone model (CZM) to better describe the effects of rate and cyclic loading. Rate is known to affect the manner in which cracks propagate in materials, yet there presently exists no rate-dependent cohesive model for fatigue simulation.
S. Salih, K. Davey, Z. Zou
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Cohesive zone modeling of creep–fatigue crack propagation with dwell time
Advances in Mechanical Engineering, 2017 In engineering application, a quantitative description of both fatigue and creep damage mechanisms is demanded for high-temperature alloy. This work employs the cohesive zone model to numerically simulate the crack propagation in a nickel-based super ...
Wen Li +3 more
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An isogeometric approach to cohesive zone modeling [PDF]
International Journal for Numerical Methods in Engineering, 2010 AbstractThe possibility of enhancing a B‐spline basis with discontinuities by means of knot insertion makes isogeometric finite elements a suitable candidate for modeling discrete cracks. In this contribution we use isogeometric finite elements to discretize the cohesive zone formulation for failure in materials. In the case of a pre‐defined interface,
Verhoosel, C.V. +3 more
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Nanotechnology and Precision Engineering, 2018 A finite element method based on the cohesive zone model was used to study the micromachining process of nanosized silicon-carbide-particle (SiCp) reinforced aluminum matrix composites.
Hongmin Pen +4 more
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