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Author: Yaoming Mi
Publisher: Computational Mechanics
ISBN: 9781853124457
Category : Technology & Engineering
Languages : en
Pages : 184
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Book Description
The engineering applications presented in this text concentrate on the simulation and analysis of general mixed mode crack growth in three dimensions.
Author: Yaoming Mi
Publisher: Computational Mechanics
ISBN:
Category : Nature
Languages : en
Pages : 208
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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In this study, the frozen stress photoelastic method was used to investigate the three-dimensional effect on the crack growth behavior in a centrally perforated circular cylinder under internal pressure. The inner surface of the cylinder had a star shape, which consisted of six fins. The specimens were capped at the ends and pressurized internally above critical temperature after real cracks were introduced at the fin tip. After growing to a desired size, the pressure was reduced to stop crack growth and held through cooling. Two different types of cracks, part-through crack and long crack with the crack length nearly equal to the length of the cylinder, were considered. The experimental data were analyzed, and the results are discussed.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 18
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Author: Ani Ural
Publisher:
ISBN:
Category :
Languages : en
Pages : 344
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Author: Yaoming Mi
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Mohammed Bikry
Publisher:
ISBN:
Category :
Languages : en
Pages : 122
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 17
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The objectives of this study were to (1) Investigate the Effect of Crack Geometry and Location on the Crack Growth Behavior in Centrally Perforated Cylinders under Internal Pressure. (2) Determine the Safety Factor for a Two-Dimensional Analysis of a Deep Part-Through crack.
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723458934
Category :
Languages : en
Pages : 168
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Book Description
The results are presented of a stress intensity factor analysis of semicircular surface cracks in the inner raceway of an engine bearing. The loading consists of a moving spherical Hertzian contact load and an axial stress due to rotation and shrink fit. A 3-D linear elastic Boundary Element Method code was developed to perform the stress analysis. The element library includes linear and quadratic isoparametric surface elements. Singular quarter point elements were employed to capture the square root displacement variation and the inverse square root stress singularity along the crack front. The program also possesses the capability to separate the whole domain into two subregions. This procedure enables one to solve nonsymmetric fracture mechanics problems without having to separate the crack surfaces a priori. A wide range of configuration parameters was investigated. The ratio of crack depth to bearing thickness was varied from one-sixtieth to one-fifth for several different locations of the Hertzian load. The stress intensity factors for several crack inclinations were also investigated. The results demonstrate the efficiency and accuracy of the Boundary Element Method. Moreover, the results can provide the basis for crack growth calculations and fatigue life prediction. Ballarini, R. and Hsu, Y. Unspecified Center BEARINGS; BOUNDARY ELEMENT METHOD; STRESS DISTRIBUTION; STRESS INTENSITY FACTORS; SURFACE CRACKS; AXIAL STRESS; COMPUTER PROGRAMS; CONTACT LOADS; CRACK PROPAGATION; FATIGUE LIFE; FRACTURE MECHANICS; LOAD TESTS...
Author: Guanshui Xu
Publisher:
ISBN:
Category :
Languages : en
Pages : 224
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Author: Michael L. Stokes
Publisher:
ISBN:
Category : Finite element method
Languages : en
Pages : 236
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