Results 11 to 20 of about 4,688 (263)
Applied Sciences, 2022 In order to investigate the effect of optimized reinforcement of cross-section of steel box girders with fatigue cracks on other vulnerable parts (cross-section, U-rib and deck slab, etc.) under wheel load, and to reveal the stress distribution law of ...
Yan Liu +5 more
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Applied Sciences, 2022 In order to solve the impact on the accuracy of a life prediction model when the initial crack angle of the curved surface is not 0°, the traditional stress intensity factor model is revised by the non-linear regression analysis method, and an optimized ...
Xiuyun Zhou +3 more
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ANALYSIS OF APPROXIMATED CURVED CRACKS IN HOMOGENEOUS AND GRADED MATERIALS
Journal of Engineering, 2009 In this paper two stages of analysis are studied. In stage I, the influence of crack shape on the crack-tip stresses, critical loads and subsequent propagation direction is investigated via a simple analytical model for cracks in homogeneous materials ...
HAYDER FANOOS NEAMAH
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Study on the Fatigue Crack Growth of the 3D Surface of the Curved Steel Plate
Chemical Engineering Transactions, 2016 In the present study, the author researched on the fatigue crack growth of the 3D surface of the curved steel plate. The new conceptual design of the fatigue crack arrest device provides the user with flexible operating.
X.L. Wang, L.L. He
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Evaluation of the Behaviour of Reinforced Concrete Curved in-Plane Beams
Iraqi Journal of Civil Engineering, 2010 A full three-dimensional finite element computational model is constructed for nonlinear analysis of reinforced concrete curved beams using ANSYS Version 11.
Anas H. Yousifany
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Nihon Kikai Gakkai ronbunshu, 2022 The gauge corner cracking (GCC) occurs on heat treated rails of the high rail in curved sections with a radius of 600 to 800m. In case of GCC propagates deeply, it may cause rail breakage.
Masahiro TSUJIE +3 more
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Study of cracks formation in curved bars and rocks
Austrian Journal of Technical and Natural Sciences, 2016 As it is know, different load-gripping devices, so called hooks, are used in the performance of loading and unloading works of mobile installations, cranes. Years-long use of load hooks showed that the wrong selection of the material, production technology as well as violations of the exploitation regime lead to the appearance of hollows, cracks, slag ...
KULIEV SABIR, KAZYMOV MUSA
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The Effect of the Free Surface on the Singular Stress Field at the Fatigue Crack Front
Journal of Mechanical Engineering, 2017 Description of stress singularity in the vicinity of a free surface is presented. Its presence causes the retardation of the fatigue crack growth in that region and fatigue crack is being curved.
Oplt Tomáš +3 more
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Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
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Analysis of Stress Intensity Factors for Curved Cracks.
TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1993 In this paper, the hypersingular integral equation method (HIEM) is applied to calculate the stress intensity factors of curved crack problems. The stress fields induced by two kinds of displacement discontinuity are used as fundamental solutions. Then, the problem is formulated as a system of integral equations with the singularity of the form of r-2.
Noda, Nao-Aki +2 more
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