Results 291 to 300 of about 4,555,706 (361)

Frost heave and freezing processes of saturated rock with an open crack under different freezing conditions

Frontiers of Structural and Civil Engineering, 2020
Zhitao Lv, C. Xia, Yuesong Wang, Ziliang Lin   +3 more
semanticscholar   +1 more source

Critical Crack Opening Displacement

2003
A three-point bend specimen with S = 25 cm, W = 6 cm, a = 3 cm, and B = 3 cm is used to determine the critical crack opening displacement δc of a steel plate according to the British Standard BS 5762. The load versus crack mouth displacement (P — V) record of the test is shown in Figure 1.
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Crack opening and rotation factor

International Journal of Fracture, 1994
Where l is the length of the specimen between two supports. If the relationship of V and S can be determined, the rotation factor r can be calculated by (1). Figure 2 is the measurement of S and V for several polymers and a steel with dimensions of 10x10x55mm and l=40mm. A very good linear relationship is exhibited for the materials except for a little
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Nonlinear crack opening integral: Mode mixity for finite cracks

Engineering Fracture Mechanics, 2017
Abstract In this work the incremental energy release rate is analyzed for single-lap adhesive joints by means of the crack closure/opening integral. To this aim, geometrically nonlinear numerical analyses are performed. For nonlinear elastic analyses the relationship between nodal forces and displacements during nodal load reduction generally cannot ...
A. Talmon l’Armée, S. Hell, P.L. Rosendahl, J. Felger, W. Becker   +4 more
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Cracking Open the Iranian Door

Science, 2007
ARCHAEOLOGYAt the Ravenna meeting ([see main text][1]), Hassan Fazeli-Nashali, the new chief of the Archaeology Research Center in Tehran, laid out a bold plan for engaging more foreign scientists and honing the skills of Iranian academics.
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Crack opening displacement in pressurized spheres with surface cracks

International Journal of Fracture, 1985
The crack opening displacement at the centre of a surface crack in a pressurized sphere has been calculated using a strip yielding model. The shallow shell solution for the stress intensity factor derived by Folias has been extended to derive the COD, and the resulting equations have been solved numerically by a procedure due to Erdogan.
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Effect of loading rates on crack propagating speed, fracture toughness and energy release rate using single-cleavage trapezoidal open specimen under impact loads

Journal of Central South University, 2020
Lin Lang, Zhe-ming Zhu, Hanchen Wang, Jian-wei Huang, Meng Wang, Xianshang Zhang   +5 more
semanticscholar   +1 more source

An approximative crack opening displacement field for embedded cracks

Engineering Fracture Mechanics, 1989
Abstract For the application of Cruse and Besuner's method to calculate approximative energy release rates or “averaged weighted stress intensity factors” the crack opening displacement field of the considered crack has to be known for a reference loading case. In this paper an embedded elliptical crack is investigated.
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Modeling and optimization of open crack detection by flying spot thermography

, 2017
A. Thiam, J. Kneip, E. Cicala, Y. Caulier, J. Jouvard, S. Mattéï   +5 more
semanticscholar   +1 more source

A stable X‐FEM in cohesive transition from closed to open crack

, 2015
S. Sádaba, I. Romero, C. González, J. Llorca   +3 more
semanticscholar   +1 more source