Results 11 to 20 of about 7,508,587 (309)
A phase field modeling approach of cyclic fatigue crack growth
International Journal of Fracture, 2020 Phase field modeling of fracture has been in the focus of research for over a decade now. The field has gained attention properly due to its benefiting features for the numerical simulations even for complex crack problems.
Christoph Schreiber +3 more
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Nonlinear Crack Growth Monitoring [PDF]
Reliability, Stress Analysis, and Failure Prevention Issues, 2000 Abstract Structures subject to crack growth spend 90–95% of their lifetime in nucleation of very tiny flaws into measurable crack sizes. Due to the large variation in initial flaw sizes and the mathematics of flaw growth, the fatigue lifetimes, even of high-quality structures, can vary by a factor of as much as 10 to 20 even in a small ...
D.E Welch, L.M Hively, R.F Holdaway
openaire +1 more source
The role of plastic strain gradients in the crack growth resistance of metals [PDF]
Journal of the mechanics and physics of solids, 2019 Crack advance from short or long pre-cracks is predicted by the progressive failure of a cohesive zone in a strain gradient, elasto-plastic solid. The presence of strain gradients leads to the existence of an elastic zone at the tip of a stationary crack,
E. Mart'inez-Paneda +3 more
semanticscholar +1 more source
Development of Automatic Crack Growth Simulation Program Based on Finite Element Analysis
Applied Sciences, 2022 A crack growth simulation program based on the advanced iterative-finite element method (AI-FEM) was developed to predict realistic crack growth of structures.
Gi-Bum Lee +6 more
doaj +1 more source
Influence of microstructural discontinuities on the behaviour of long cracks in the VHCF regime for the aluminium alloys EN AW 6082 and EN AW 5083 [PDF]
MATEC Web of Conferences, 2018 In the present study two different aluminium alloys, the precipitation hardening alloy EN AW 6082 (peak-aged and overaged) and the work-hardening alloy EN AW 5083 (soft annealed) were examined. Fatigue cracks were initiated by means of a focused ion beam
Kirsten Tina +5 more
doaj +2 more sources
Crack Growth Behavior through Wall Pipes under Impact Load and Hygrothremal Environment
Al-Khawarizmi Engineering Journal, 2018 This research concerns study the crack growth in the wall of pipes made of low carbon steel under the impact load and using the effect of hygrothermal (rate of moisture 50% and 50℃ temperature).
Ali Jamal Khaled, Ahmed Abdul Hussain
doaj +1 more source
Advances in Materials Science and Engineering, 2020 To understand the effect of cold working of welding heat-affected zone on the driving force of the crack growth and crack growth rate of stress corrosion cracking (SCC) near the welding fusion line, the finite element simulation method was used to ...
Hongliang Yang +3 more
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Metals, 2021 The paper presents a comparison of the results of the fatigue crack growth rate for raw rail steel, steel reinforced with composite material—CFRP—and also in the case of counteracting crack growth using the stop-hole technique, as well as with an ...
Grzegorz Lesiuk +7 more
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Phase-field models for fatigue crack growth [PDF]
Theoretical and applied fracture mechanics (Print), 2018 We introduce a class of models based on near crack tip degradation of materials that can account for fracture growth under cyclic loads below the Griffith threshold. We incorporate the gradual degradation due to a cyclic load through a flow equation that
A. Mesgarnejad, A. Imanian, A. Karma
semanticscholar +1 more source
Crack closure effect of fatigue crack under cyclic tensile loading
Nihon Kikai Gakkai ronbunshu, 2015 The objective of this study is to evaluate crack growth behavior under cyclic tensile loading considering crack closure effect. Crack growth behavior under cyclic tensile loading on a plate with surface crack is tested.
Akiyuki TAKAHASHI +3 more
doaj +1 more source