Results 271 to 280 of about 50,764 (304)

Multiple surface crack interaction of non-coplanar cracks

Hollow cylinders represent one of the important elements in the industry. It is widely recognized that fracture characterizes the predominant mode of failure in cylindrical structures, which is precipitated by inherent imperfections or flaws. Over a period, these imperfections (cracks) may propagate and culminate in catastrophic failure, thereby ...
Mohammed, Omar, Ismail, Al Emran, Kamil, Ali, Jamian, Saifulnizan   +3 more
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Creep Crack Interaction of High Temperature Structure with Multiple Cracks

Key Engineering Materials, 2006
The interaction behavior of two non-aligned through-wall cracks in flat plates is investigated by the finite element method (FEM) under extensive creep condition. The time-dependent fracture parameter C*-integral along the crack tips are calculated and compared to the results of a single crack of the same size.
Jun Si, Fu Zhen Xuan, Shan Tung Tu
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Multiple cracks effects and identification

Mechanical Systems and Signal Processing, 2008
An important rotor fault, which can lead to catastrophic failure if undetected, is fatigue crack in the shaft. The cracked rotor problem received the first attention in 1970, since when the interest among the researchers started. Vibration behavior of cracked structures, in particular cracked rotors, has received considerable attention in the last two ...
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Effects of Multiple Cracking on Crack Growth and Coalescence in Contact Fatigue

Journal of Tribology, 1997
A three-dimensional fracture analysis is applied to investigate the interaction effects of multiple cracking on the crack growth in contact fatigue and to simulate the process of crack coalescence that leads to pitting failure. The rolling contact fatigue is simulated by a cyclic Hertzian contact loading moving across the surface of an elastic half ...
C. H. Kuo, L. M. Keer, M. P. Bujold
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Microscopic analysis of crack propagation for multiple cracks, inclusions and voids

Theoretical and Applied Fracture Mechanics, 2001
The elastic crack interaction with internal defects, such as microcracks, voids and rigid inclusions, is investigated in this study for the purpose of analyzing crack propagation. The elastic stress field is obtained using linear theory of elasticity for isotropic materials.
I. Demir, H.M. Zbib, M. Khaleel
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Micromechanics of multiple cracking Part II Statistical tensile behaviour

Journal of Materials Science, 1998
A computational model for fibre-reinforced brittle materials in tension is developed. The model includes multiple cracking and strain-hardening processes, as well as single fracture and strain softening. The composite behaviour is derived from a single-fibre analysis by integrating over all possible fibre locations and orientations.
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Stress Concentration Caused by Multiple Punches and Cracks

Journal of Applied Mechanics, 1956
Abstract The paper contains (a) a general theory of stress distribution under several punches in simultaneous action and of stress concentration caused by several cracks; (b) a complete evaluation for the case of two punches or two cracks. Considerable stress interference is found with punches (cracks) close to each other.
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A Dislocation Green’s Function for the Analysis of Multiple Coplanar Cracks or Cracks With Nonuniform Crack Fronts

Journal of Applied Mechanics, 1990
This analysis considers the interaction between a penny-shaped crack or a circular external crack and a mode I “opening” point dislocation. The dislocation is taken to lie on the plane of the crack. Symmetry considerations allow the reduction to a mixed boundary value problem for a half space which is solved by well-known methods from potential theory.
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Experiment and simulation investigation of multiple cracks evolution at the weld toe

International Journal of Fatigue, 2021
Siwen Chen
exaly  

Experimental investigation of crack growth direction in multiple cracks

Fatigue & Fracture of Engineering Materials & Structures, 2011
P. C. GOPE, A. THAKUR
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