Results 11 to 20 of about 54,625 (266)

Surface Crack Growth in Offshore Metallic Pipes under Cyclic Loads: A Literature Review

open access: yesJournal of Marine Science and Engineering, 2020
The surface crack, also known as the partly through-thickness crack, is a serious threat to the structural integrity of offshore metallic pipes. In this paper, we review the research progress in regard to surface crack growth in metallic pipes subjected ...
Zongchen Li, Xiaoli Jiang, Hans Hopman
doaj   +1 more source

A new digital surface crack image monitoring technology for coal failure

open access: yesEnergy Science & Engineering, 2023
The experimental study on the variation law of coal fracture and stress was carried out in the laboratory and engineering fields, respectively. A multiparameter monitoring system including electromagnetic radiation and a high‐speed camera was built, and ...
Yankui Li   +6 more
doaj   +1 more source

Generating surface crack patterns [PDF]

open access: yesGraphical Models, 2009
We present a method for generating surface crack patterns that appear in materials such as mud, ceramic glaze, and glass. To model these phenomena, we build upon existing physically based methods. Our algorithm generates cracks from a stress field defined heuristically over a triangle discretization of the surface.
Hayley N. Iben, James F. O'Brien
openaire   +4 more sources

FINITE ELEMENT ANALYSIS OF FRACTURE MECHANICS OF WHEEL-RAIL [PDF]

open access: yesمجله مدل سازی در مهندسی, 2011
In this paper, wheel-rail contact problem in the presence of rail surface crack is investigated. The reason for investigating this problem is significant effect of wheel-rail contact on stress intensity factors.
یوسف Ahmadi Broughani   +1 more
doaj   +1 more source

Surface crack growth subject to bending and biaxial tension-compression [PDF]

open access: yesFracture and Structural Integrity, 2016
Fatigue surface crack growth and the in-plane and out-of-plane constraint effects are studied through experiments and computations for aluminium alloy D16T.
V. Shlyannikov   +3 more
doaj   +1 more source

Probability-Based Crack Width Estimation Model for Flexural Members of Underground RC Box Culverts

open access: yesApplied Sciences, 2022
Crack control for slabs and beams in current design practices in Korea are based on the Frosch’s model, which is adapted in ACI 318. It is more difficult to have consistent quality control in underground construction sites, such as the RC box culverts ...
Sang-Hyo Kim   +4 more
doaj   +1 more source

Z-factor equations for elastic-plastic fracture mechanics analysis prescribed in the JSME rules on fitness-for-service for nuclear power plants

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Fracture strength of cracked pipes made of moderate toughness materials is derived using J-integral value, which represents the driving force for fracture, and J-R curve, which corresponds to the material strength.
Masayuki KAMAYA   +3 more
doaj   +1 more source

Fatigue Behavior of Alumina with Surface Crack. Effects of Initial Surface Crack Size and Multiple Surface Cracks.

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 2001
In this paper, the effect of crack size, number and distance between the centers of surface cracks on the fatigue behavior of alumina has been investigated. A single crack and two or three collinear surface cracks were introduced by Vickers indenter. The crack size was changed by several indentation load. The fatigue tests were carried out under static
YOSHIKAWA, Akira   +3 more
openaire   +2 more sources

Acoustic microscopy of surface cracks

open access: yesPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1986
Abstract The uniqueness of the acoustic microscope lies in its ability to image the way in which acoustic waves interact with the elastic properties of a specimen with microscopic resolution. A dominant role in the contrast achieved is played by Rayleigh waves that are excited in the surface of the specimen.
Rowe, J   +3 more
openaire   +2 more sources

On surface cracks in glasses [PDF]

open access: yesProceedings of the Royal Society of London. Series A - Mathematical and Physical Sciences, 1937
Abstract The fact that the rupture strength of solids is, in general, only an ex­ceedingly small fraction—of the order of one-thousandth—of the theoretical strength has been explained on the hypothesis of submicroscopic flaws existing in the material. In a fundamental paper A. A.
Edward Neville Da Costa Andrade   +1 more
openaire   +1 more source

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