scholarly journals Plane-strain stress intensity factors for cracked hexagonal subassembly ducts. [LMFBR]

1977 ◽  
Author(s):  
H. J. Petroski ◽  
J. L. Glazik ◽  
J. D. Achenbach
Keyword(s):  
Stress Intensity ◽  
Plane Strain ◽  
Stress Intensity Factors ◽  
Intensity Factors ◽  
Strain Stress

scholarly journals Analytical Solution of a Crack Problem in a Radially Graded FGM

2009 ◽  
Vol 631-632 ◽  
pp. 115-120
Author(s):  
Suat Çetin ◽  
Suat Kadıoğlu
Keyword(s):  
Stress Intensity ◽  
Plane Strain ◽  
Stress Intensity Factors ◽  
Crack Problem ◽  
Approximate Model ◽  
Plane Elasticity ◽  
Functionally Graded ◽  
Homogeneous Layer ◽  
Intensity Factors ◽  
Functionally Graded Layer

The objective of this study is to determine stress intensity factors (SIFs) for a crack in a functionally graded layer bonded to a homogeneous substrate. Functionally graded coating contains an edge crack perpendicular to the interface. It is assumed that plane strain conditions prevail and the crack is subjected to mode I loading. By introducing an elastic foundation underneath the homogeneous layer, the plane strain problem under consideration is used as an approximate model for an FGM coating with radial grading on a thin walled cylinder. The plane elasticity problem is reduced to the solution of a singular integral equation. Constant strain loading is considered. Stress intensity factors are obtained as a function of crack length, strip thicknesses, foundation modulus, and inhomogeneity parameter.

Generation of Crack Propagation Data on Notched Rotating Beam Specimens by Means of an Interrupted Stressing Technique

1970 ◽  
Vol 92 (1) ◽  
pp. 183-190 ◽  
Author(s):  
R. Eisenstadt ◽  
Ware D. Fuller
Keyword(s):  
Stress Intensity ◽  
Powder Metallurgy ◽  
Crack Propagation ◽  
Crack Growth ◽  
Plane Strain ◽  
Stress Intensity Factors ◽  
Growth Data ◽  
Rotating Beam ◽  
Intensity Factors ◽  
Inexpensive Technique

A simple, inexpensive technique of generating crack propagation data on rotating beam specimens of relatively small dimensions (1/2 in. dia by 3 in. long) has been developed. A recent solution for stress intensity factors on circumferentially notched round specimens [1]2 has made such data comparable with data generated by other specimen geometries. It is the purpose of this paper to develop this approach as an alternative method of generating crack propagation data. This technique should be especially useful for generating crack growth data approaching plane strain conditions under very low stresses where many cycles are required or for those materials where only small volumes are available as composites and powder metallurgy.

The evolution of stress intensity factors in the propagation of two dimensional cracks

2000 ◽  
Vol 11 (5) ◽  
pp. 453-471 ◽  
Author(s):  
AVNER FRIEDMAN ◽  
BEI HU ◽  
JUAN J. L. VELAZQUEZ
Keyword(s):  
Stress Intensity ◽  
Elastic Medium ◽  
Plane Strain ◽  
Asymptotic Expansions ◽  
Stress Intensity Factors ◽  
Matched Asymptotic Expansions ◽  
Two Dimensional ◽  
Intensity Factors ◽  
Plane Strain Deformation ◽  
Isotropic Elastic Medium

The aim of this paper is to describe a technique based on matched asymptotic expansions that allows us to derive the variation of the stress intensity factors in a homogeneous isotropic elastic medium under plane strain deformation. The case of antiplane shearing is also considered.

The Evaluation of the Stress Intensity Factors for Cracks Subjected to Tension, Torsion, and Flexure by an Efficient Numerical Technique

1972 ◽  
Vol 94 (2) ◽  
pp. 387-393 ◽  
Author(s):  
A. F. Emery ◽  
C. M. Segedin
Keyword(s):  
Stress Intensity ◽  
Plane Strain ◽  
Stress Intensity Factors ◽  
Numerical Technique ◽  
Efficient Computation ◽  
Intensity Factors ◽  
Hollow Cylinders ◽  
High Degree

A numerical technique for the efficient computation of singular states of stress is developed and applied to several plane strain elastic problems. The method which extracts the effect of the singularity from the field permits the use of relatively coarse nodal meshes with rapid solution times but maintains a high degree of accuracy. Using this technique, stress intensity factors are calculated for the torsion and flexure of solid and hollow cylinders and the internal pressurization of cylinders of varying thicknesses.

DETERMINATION OF RESIDUAL STRESSES AND STRESS INTENSITY FACTORS BY REMOVING LOCAL MATERIAL

2017 ◽  
Vol 48 (4) ◽  
pp. 377-398
Author(s):  
Svyatoslav Igorevich Eleonskii ◽  
Igor Nikolaevich Odintsev ◽  
Vladimir Sergeevich Pisarev ◽  
Stanislav Mikhailovich Usov
Keyword(s):  
Stress Intensity ◽  
Residual Stresses ◽  
Stress Intensity Factors ◽  
Intensity Factors ◽  
Local Material
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