Results 251 to 260 of about 1,354,072 (296)
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Initial Strain Field and Fatigue Crack Initiation Mechanics
Journal of Applied Mechanics, 1983On single aluminum crystals under cyclic loadings, fresh slip lines appeared during the reversed loading, lying very close to, but not coincident with the slip lines formed in the forward loading. These slip lines indicate the start of extrusion or intrusion as commonly observed in fatigue specimens.
S. R. Lin, T. H. Lin
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Fatigue crack initiation and subsequent crack growth in fillet welded steel joints
International Journal of Fatigue, 2019The fatigue damage evolution in fillet welded steel joints where cracks are emanating from the weld toe is investigated. Based on existing experimental data for as-welded joints including crack depth measurements of the early crack growth it is proposed ...
Z. Mikulski, T. Lassen
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Effect of stress gradient and quadrant averaging on fretting fatigue crack initiation angle and life
Tribology International, 2019Fretting fatigue involves multiaxial stress field due to presence of contact between two bodies. Near the contact edge, high stress gradient may be present depending on load and geometrical conditions.
N. A. Bhatti, Kyvia Pereira, M. Wahab
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Study on small fatigue crack initiation and growth for friction stir welded joints
Materials Science & Engineering: A, 2019Small fatigue crack initiation and growth behavior for 7075 aluminum alloy friction stir welded joints are investigated with the replica technique.
Guoqin Sun +4 more
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International Journal of Rock Mechanics And Mining Sciences, 2019
The wing crack initiation and propagation of the inclined crack under uniaxial compression is the key factor affecting and controlling the cracked rock mass mechanical behavior.
Hongyan Liu, Shuran Lv
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The wing crack initiation and propagation of the inclined crack under uniaxial compression is the key factor affecting and controlling the cracked rock mass mechanical behavior.
Hongyan Liu, Shuran Lv
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Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1957
A discussion is given of the formation of persistent slip bands during cyclic stressing and their development into fatigue cracks. In copper and in aluminium at low temperatures fatigue cracks appear to be formed in this way; at room temperature in aluminium they may form also along grain boundaries.
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A discussion is given of the formation of persistent slip bands during cyclic stressing and their development into fatigue cracks. In copper and in aluminium at low temperatures fatigue cracks appear to be formed in this way; at room temperature in aluminium they may form also along grain boundaries.
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Studies on Crack Initiation and Stable Crack Growth
1979Experimental results are presented which suggest that parameters based on the J-integral and the crack opening tip displacement δ are viable characterizations of crack initiation and stable crack growth. Observations based on some theoretical studies and finite-element investigations of the extending crack revealed that J and δ when appropriately ...
CF Shih, HG deLorenzi, WR Andrews
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Crack Initiation and Damage Evolution of Micritized Framework Reef Limestone in the South China Sea
Rock Mechanics and Rock Engineering, 2021Haifeng Liu +4 more
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Crack-Tip-Acuity Effect on Crack Growth Initiation
Journal of Engineering Materials and Technology, 1987For a stationary crack of an initially finite root radius in plane-strain tension, the strain fields around the smoothly blunted crack-tip are calculated for each deformation stage using the slipline field method for nonhardening plastic material. The crack growth initiation from the blunt crack-tip in small-scale yielding, with a full triaxiality ...
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Crack initiation at contact surface
Theoretical and Applied Fracture Mechanics, 2003By using the S-theory, the crack initiation angle from the contact surface of rectangular rigid punch and flat-surface substrate has been investigated. The coefficient of friction at the edge of contact, which characterizes the asymptotic stress field, is considered as the controlling parameter in the analysis.
Y.J. Xie, D.A. Hills
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