Results 241 to 250 of about 8,845 (277)

Analysis of fatigue crack propagation under mixed mode II + III in ARMCO iron

International Journal of Fatigue, 2015
Abstract Near-threshold propagation of shear cracks under mixed-mode II + III loading was investigated in ARMCO iron. Special specimens for simultaneous growth of cracks in II, III and II + III loading modes were employed in these experiments. All experiments were performed under small-scale yielding as verified by both analytical and numerical ...
Anton Hohenwarter, Pavel Šandera, Jana Horníková   +2 more
exaly   +2 more sources

Study on Fracture Prediction for Cracks Under Mode II and III Loading Combined With Mode I

Volume 1: Offshore Technology; Structures, Safety and Reliability; Materials Technology
Abstract Predicting brittle fractures in beam-to-column connections under mixed-mode loading remains a significant challenge in structural engineering. Traditional approaches predominantlyy focus on mode I crack opening, often neglecting the contributions of modes II and III.
Takuya Akahoshi, Koji Azuma, Tsutomu Iwashita   +2 more
openaire   +1 more source

Intrinsic Behaviour of Mode II and Mode III Long Fatigue Cracks in Zirconium and the Ti-6Al-4V Alloy

Solid State Phenomena, 2016
This work is focused on experimental study of micromechanisms of mode II and mode III fatigue cracks in metallic materials in the near-threshold regime. The resistance to fatigue crack growth can be divided to an intrinsic component (ahead of the crack tip) and an extrinsic component (shielding, closure), which is significantly higher than the ...
Tomáš Vojtek, Jaroslav Pokluda, Anton Hohenwarter, Richard Pippan   +3 more
openaire   +1 more source

Mode II and mode III stress singularities and intensities at a crack tip terminating on a transversely isotropic-orthotropic bimaterial interface

Proceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences, 1994
Abstract In a recent paper (referred to as I) we obtained inter alia, the stress and displacement fields at the tips of a transverse crack in an isotropic medium sandwiched between orthotropic media under in-plane loading (mode II). The crack was lying wholly within the isotropic medium so that the singularity at the crack tip was of ...
Wang, J., Karihaloo, B. L.
openaire   +3 more sources

Threshold and growth mechanism of fatigue cracks under mode II and III loadings

Fatigue & Fracture of Engineering Materials & Structures, 2003
ABSTRACT The fatigue crack growth behaviour of 0.47% carbon steel was studied under mode II and III loadings. Mode II fatigue crack growth tests were carried out using specially designed double cantilever (DC) type specimens in order to measure the mode II threshold stress intensity factor range, ΔKIIth.
Y. MURAKAMI, K. TAKAHASHI, R. KUSUMOTO
openaire   +1 more source

Experimental Investigation of Modes II and III Fatigue Crack Growth in Unalloyed Titanium

Key Engineering Materials, 2013
The study is focused on finding and describing microscopic paths of modes II and III cracks in commercially pure α-titanium (hcp structure). Experiments were done on cylindrical bars with a circumferential cracked notch loaded in shear (modes II, III and II + III) and torsion (mode III).
Tomáš Vojtek, Jaroslav Pokluda
openaire   +1 more source

Stress corrosion cracking under modes I, II and III loadings

Engineering Fracture Mechanics, 1988
Abstract Stress corrosion cracking tests for modes I, II and III were carried out on high tensile strength steel in water or 3.5% salt water. The single edge notched cantilever beam specimen was used for mode I. The circumferentially-notched pipe specimen for mode II and the circumferentially-notched bar specimen for mode III were subjected to ...
openaire   +1 more source

Configurational Stability of a Crack Propagating in Mixed-Mode I + II + III

2019
In some previous papers, we presented some linear stability analyses of the coplanar propagation of a crack loaded in mixed-mode I + III, using a propagation criterion combining a Griffith-type energetic condition and Goldstein and Salganik’s “principle of local symmetry”. In the last one, the local value of the fracture energy was no longer considered
Jean-Baptiste Leblond, Alain Karma, Laurent Ponson, Aditya Vasudevan   +3 more
openaire   +1 more source

The topography of the core-region around cracks under modes I, II and III of fracture

International Journal of Mechanical Sciences, 1983
Abstract The core region, defined as the limiting zone of validity of the various brittle fracture criteria, has been intuitively assumed as a circle. Its experimental determination is based here on a simple asymptotic elastic theory and a verification by the method of reflected caustics.
Theocaris, P. S., Pazis, D.
openaire   +3 more sources

Specimens for Simultaneous Mode II, III and II+III Fatigue Crack Propagation: Elasto-Plastic Solution of Crack Tip Stress-Strain Field

Advanced Materials Research, 2014
Determination of fatigue crack growth characteristics under shear-mode loading is a rather complicated problem. To increase an efficiency and precision of such testing, special specimens enabling simultaneous propagation of shear cracks under II, III and II+III loading modes started to be used rather recently.
Jana Horníková, Pavel Šandera, Stanislav Žák, Jaroslav Pokluda   +3 more
openaire   +1 more source