Searched for: subject:"Fatigue%5C+Crack%5C+Growth"
(1 - 16 of 16)
document
Dekker, R. (author), van der Meer, F.P. (author), Maljaars, J. (author), Sluijs, L.J. (author)
Structures are subjected to cyclic loads that can vary in direction and magnitude, causing constant amplitude mode I simulations to be too simplistic. This study presents a new approach for fatigue crack propagation in ductile materials that can capture mixed-mode loading and overloading. The extended finite element method is used to deal with...
journal article 2019
document
Rans, C.D. (author), Michielssen, J. (author), Walker, M.S. (author), Wang, W. (author), Hoen-Velterop, Ludmila ’t (author)
A challenge in developing an in-depth understanding of the crack growth resistance of Additively Manufactured materials is the fact that their mechanical properties have been shown to be both process and part-geometry dependent. Up to now, no studies have investigated the influence of off-axis (beyond the three orthogonal build orientations)...
journal article 2018
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Saeedifar, M. (author), Ahmadi Najafabadi, Mehdi (author), Mohammadi, Kaivan (author), Fotouhi, Mohamad (author), Hosseini Toudeshky, Hossein (author), Shah Mohammadi, Mohammad Reza (author)
The aim of this study was to investigate the applicability of acoustic emission (AE) technique to evaluate delamination crack in glass/epoxy composite laminates under quasi-static and fatigue loading. To this aim, double cantilever beam specimens were subjected to mode I quasi-static and fatigue loading conditions and the generated AE signals...
journal article 2018
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Usman, M. (author), Pascoe, J.A. (author), Alderliesten, R.C. (author), Benedictus, R. (author)
The effect of temperature on fatigue crack growth in epoxy adhesive bonds was investigated for a range of temperatures from -55 to 80[U+202F]°C. The fatigue crack growth behaviour was characterised using both strain energy release rate (SERR) and by measurements of energy dissipation. It was found that for a given maximum SERR, or a given...
journal article 2018
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Martinez, M.J. (author), Pant, S (author), Yanishevsky, M (author), Backman, D (author)
Structural health monitoring has focused on the use of computational models to capture the effect of crack-like discontinuities on the behaviour of acoustic-ultrasonic signals. However, few models have taken into account the effect of geometric complexity in combination with residual stresses generated during the fatigue crack growth (FCG)...
journal article 2017
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Wang, W. (author)
Fibre metal laminates (FMLs)were developed and refined for their superior crack growth resistance and critical damage size that complimented the damage tolerance design philosophy utilized in the aerospace sector. Robust damage tolerance tools have been developed for FMLs. However, they tend to focus on the evolution of an isolated crack. There...
doctoral thesis 2017
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Zhang, Z. (author), Wang, W. (author), Rans, C.D. (author), Benedictus, R. (author)
This paper provides an experimental investigation into the pin loading effects on the crack growth behaviour in Fibre Metal Laminates. The pin loading effects and bypass loading effects are incorporated in two different tested joints. The analysis of the test results shows that pin loading dominates the crack growth only in the vicinity of the...
journal article 2016
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Pascoe, J.A. (author), Alderliesten, R.C. (author), Benedictus, R. (author)
The available models for the prediction of fatigue crack growth in adhesive bonds rely on the similitude principle. In most cases, one of three similitude parameters based on the strain energy release rate (SERR) is used; i.e. G<sub>max</sub>, (Δ√G)<sup>2</sup>, or ΔG. In all cases it is usually observed that keeping the similitude parameter...
journal article 2016
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Pascoe, J.A. (author), Alderliesten, R.C. (author), Benedictus, R. (author)
Measurement of the energy dissipation during fatigue crack growth is used as a technique to gain more insight into the physics of the crack growth process. It is shown that the amount of energy dissipation required per unit of crack growth is determined by Gmax, whereas the total amount of energy available for crack growth in a single cycle is...
conference paper 2016
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Wilson, G.S. (author)
The excellent durability performance of Glare, a thin fiber metal laminate (FML) material system, is now being proven in service. This has motivated work towards the application of FMLs to thicker structures driven by damage tolerance. In order to fully characterize the crack growth life of such materials, models are necessary that can account...
doctoral thesis 2013
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Khan, S. (author)
This thesis presents the investigation into the fatigue propagation and delamination growth of Fibre Metal Laminates under variable amplitude loading. As explained in the first chapter, the motivation of the research is twofold: first, to obtain a clear understanding and detailed characterization of the failure mechanisms in GLARE under variable...
doctoral thesis 2013
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Van Kranenburg, C. (author)
Fatigue is a gradual process of local strength reduction. It is a phenomenon of damage accumulation at stress concentrations caused by fluctuating stresses and/or strains. In metals this results in microscopic cracks. These will start to grow under continued cyclic loading until final failure occurs. The process of fatigue is essentially a...
doctoral thesis 2010
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Lemmen, H.J.K. (author)
Friction stir welding is a young welding process with high potential to replace riveted joints in aerospace structures like the fuselage. Friction stir welding is a robust process and capable of welding high strength aluminum alloys. Therefore it can lead to both costs and weight savings. To substitute riveted joints by friction stir welded...
doctoral thesis 2010
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Zuidema, J. (author)
doctoral thesis 1995
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Chen, D. (author)
doctoral thesis 1991
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Chen, D. (author)
report 1990
Searched for: subject:"Fatigue%5C+Crack%5C+Growth"
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