Results 231 to 240 of about 1,354,072 (296)
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, 2020
Crack initiation mechanisms in the very high cycle fatigue (VHCF) regime of nickel-based single-crystal (SX) superalloys have been investigated at high temperature (1000 °C) and under fully reversed conditions (R = −1). For all Ni-based SX alloys tested,
A. Cervellon +5 more
semanticscholar +1 more source
Crack initiation mechanisms in the very high cycle fatigue (VHCF) regime of nickel-based single-crystal (SX) superalloys have been investigated at high temperature (1000 °C) and under fully reversed conditions (R = −1). For all Ni-based SX alloys tested,
A. Cervellon +5 more
semanticscholar +1 more source
Crack Gages for Detecting Fatigue Crack Initiation
Journal of Structural Engineering, 1987The use of fatigue crack gages is examined, in order to provide a clear indication of fatigue crack inititation and early subscritical crack growth in structural steel details. The crack gage consists of a thin steel coupon that can be bonded to a structural member in the vicinity of a known stress raiser, such as at the end of a cover plate or near a ...
Charles K. Nmai, Mark D. Bowman
openaire +1 more source
, 2020
Ultrasonic fatigue tests were performed to investigate high and very high cycle fatigue behaviors of a laser additively manufactured Inconel 718 (IN718) alloy in the as-deposited condition.
Kun Yang +3 more
semanticscholar +1 more source
Ultrasonic fatigue tests were performed to investigate high and very high cycle fatigue behaviors of a laser additively manufactured Inconel 718 (IN718) alloy in the as-deposited condition.
Kun Yang +3 more
semanticscholar +1 more source
, 2020
We describe here the distinct high cycle fatigue properties of advanced bainitic steels to elucidate the significant role of retained austenite with different morphologies on sub-surface fatigue crack initiation process.
G. Gao +5 more
semanticscholar +1 more source
We describe here the distinct high cycle fatigue properties of advanced bainitic steels to elucidate the significant role of retained austenite with different morphologies on sub-surface fatigue crack initiation process.
G. Gao +5 more
semanticscholar +1 more source
Crack initiation in polystyrene
Journal of Materials Science, 1973A technique is described for demonstrating the flaws at which fracture initiates in injection-moulded polystyrene. The primary flaws are shown to be the same features as occur at the foci of secondary fractures in this polymer.
B. L. Earl, R. J. Loneragan, M. Crook
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Anisotropic characteristics of crack initiation and crack damage thresholds for shale
, 2020The inherent anisotropy is the most important structural feature of shale. Most research on the mechanical behavior of shale has focused on its anisotropic strength, deformation and failure patterns.
Cunbao Li, Heping Xie, Jia-ling Wang
semanticscholar +1 more source
, 2020
Sensitive structures, such as airframes, need careful inspection and maintenance to avoid fatigue failures. These activities are expensive, discrete and imperfect, since catastrophic failure may occur before cracks can be detected.
Seyed Fouad Karimian +2 more
semanticscholar +1 more source
Sensitive structures, such as airframes, need careful inspection and maintenance to avoid fatigue failures. These activities are expensive, discrete and imperfect, since catastrophic failure may occur before cracks can be detected.
Seyed Fouad Karimian +2 more
semanticscholar +1 more source
, 2020
High-cycle fatigue crack initiation and propagation in an equiatomic CrMnFeCoNi high-entropy alloy were investigated using smooth specimens. The microstructural deformation characteristics, i.e., planar dislocation slip, significantly affected the ...
Kai Suzuki +4 more
semanticscholar +1 more source
High-cycle fatigue crack initiation and propagation in an equiatomic CrMnFeCoNi high-entropy alloy were investigated using smooth specimens. The microstructural deformation characteristics, i.e., planar dislocation slip, significantly affected the ...
Kai Suzuki +4 more
semanticscholar +1 more source
, 2020
Small fatigue crack initiation behaviour in a series of specimens containing different sizes of micro-notch has been observed through RepliSet system during interrupted low cycle fatigue tests. From the replicating observations, very initial single crack
G. Yuan +4 more
semanticscholar +1 more source
Small fatigue crack initiation behaviour in a series of specimens containing different sizes of micro-notch has been observed through RepliSet system during interrupted low cycle fatigue tests. From the replicating observations, very initial single crack
G. Yuan +4 more
semanticscholar +1 more source
, 2020
Fatigue crack initiation behaviour of notched 34CrNiMo6 high-strength steel bars with transverse blind holes and lateral U-shaped notches subjected to proportional bending-torsion loading is studied.
R. Branco +4 more
semanticscholar +1 more source
Fatigue crack initiation behaviour of notched 34CrNiMo6 high-strength steel bars with transverse blind holes and lateral U-shaped notches subjected to proportional bending-torsion loading is studied.
R. Branco +4 more
semanticscholar +1 more source