Results 231 to 240 of about 7,508,587 (309)
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Multiple-cracked fatigue crack growth by BEM
Computational Mechanics, 1995The dual boundary element method is applied to the two-dimensional linear elastic analysis of fatigue problem of multiple-cracked body. For each crack, the traction integral equation is applied on one surface of the crack, while the usual displacement integral equation is used simultaneously on the other. General multiple crack growth problem is solved
Yan, A. M., Nguyen-Dang, H.
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Acta Materialia, 2019
The yield strength (σy) of Ti 6Al 4V alloy, additively manufactured via selective laser melting (SLM) of powder beds, can exceed 1000 MPa while possessing a mode I fracture toughness (KIc) of ∼50 MPa m .
Punith Kumar, U. Ramamurty
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The yield strength (σy) of Ti 6Al 4V alloy, additively manufactured via selective laser melting (SLM) of powder beds, can exceed 1000 MPa while possessing a mode I fracture toughness (KIc) of ∼50 MPa m .
Punith Kumar, U. Ramamurty
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Crack Nucleation, Growth, and Arrest Under Subcritical Crack Growth
Transactions of the Indian Institute of Metals, 2015Component failures occur by crack initiation, growth and fast or overload fracture. The energetics demands that the crack tip driving forces must exceed the material resistance to crack growth. Crack being a high energy defect cannot nucleate spontaneously. However, it can nucleate in the presence of applied and localized internal stresses.
K. Sadananda, A. K. Vasudevan
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A review on 3D-FE adaptive remeshing techniques for crack growth modelling
Engineering Fracture Mechanics, 2015Ricardo Branco, F V Antunes
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Evaluation of the crack-growth resistance of ceramics in the stage of subcritical crack growth
Materials Science, 1996We propose a procedure for the evaluation of the parameters of crack growth in ceramic materials based on the application of soft and rigid loading to a standard beam specimen with lateral notch. The kinetic diagrams of fracture of aluminooxide ceramics obtained as a result enable one to predict the durability of products made of this material under ...
O. M. Romaniv, B. D. Vasyliv
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Fatigue crack growth threshold and short crack growth in austenitic materials
International Journal of Pressure Vessels and Piping, 1996Abstract The fatigue crack growth (FCG) and the FCG threshold behaviour of long cracks in 316 L(N) material have been determined at 550°C. For the FCG behaviour an influence of R-ratio on the slope of the Paris law trend line was found with higher FCG rates in the range of low ΔK values for example R = 0.5.
H. Huthmann, V.B. Livesey, G. Robert
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Growth of a fatigue crack. 3. Model of unstable crack growth
Strength of Materials, 1989A quantitative model of unstable fatigue-crack growth is proposed on the basis of a determination of the specific plastic strain energy stored the distance X* from the crack tip. The model makes allowance for the energy irreversibly dissibated within the damage zone and the resistance of the material to brittle fracture during static loading. The model
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1987
Components of energy units in service are subjected to cyclic loading combined with dwell times and high temperatures. Crack growth which occurs at defects in such components is thought to be a combination of fatigue crack growth and creep crack growth.
W. Oberparleiter, P. Agatonovic
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Components of energy units in service are subjected to cyclic loading combined with dwell times and high temperatures. Crack growth which occurs at defects in such components is thought to be a combination of fatigue crack growth and creep crack growth.
W. Oberparleiter, P. Agatonovic
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A fatigue crack growth threshold
Engineering Fracture Mechanics, 1992Abstract Fatigue crack growth (FCG) threshold has been determined on Ti6A14V, Al 7475-T7351, quenched and tempered steel 24CrMo4 as well as on the Ni-base alloys Inconel 617 and Nicrofer 5219 Nb. The main objective of the studies was to prove the transferability of the experimentally determined FCG threshold to service type fatigue loading.
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Automated crack assessment and quantitative growth monitoring
Comput. Aided Civ. Infrastructure Eng., 2020Crack assessment has remained one of the high‐priority research topics for structural health monitoring. However, the current research mainly focuses on the crack assessment at some point, but pays relatively less attention to the long‐term development ...
Si-Yu Kong +4 more
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