Results 261 to 270 of about 1,528,319 (313)

Summary of Stress-Intensity Factors

1996
Abstract The stress-intensity concept is based on the parameter that quantifies the stresses at a crack tip. This article summarizes some stress-intensity factors for various crack geometries commonly found in structural components. Through-the-thickness cracks may be located in the middle of a plate; at the edge of a plate; or at the ...
openaire   +1 more source

On the Stress Intensity Factor for the Elliptical Crack

International Journal of Fracture, 1998
Stress intensity factor (SIF) for the elliptical crack under polynomial (uniform, as a special case) loading was first given by Kassir and Sih (1975). However, their expressions contain an error, corrected by Fabrikant (1987). This correction appears to have gone largely unnoticed, and some authors still use the incorrect result. We demonstrate, on the
B. Nuller, E. Karapetian, M. Kachanov
openaire   +1 more source

Dynamic Stress Intensity Factor

2003
An infinite strip of height 2h with a semi-infinite crack is rigidly clamped along its upper and lower faces at y = ± h (Figure 1). The upper and lower faces are moved in the positive and negative y-direction over distances u0, respectively. Determine the dynamic stress intensity factor K(t) during steady state crack propagation.
openaire   +1 more source

Minimax approximation to stress intensity factors with mathematica

Computers & Structures, 1992
Abstract The use of minimax approximation is suggested as the best possible approach during the evaluation of stress intensity factors from the respective integral including the loading distribution and the corresponding weight/Green function. This kind of approximation is generally better than alternative methods.
openaire   +1 more source

Intensity of Corner and Stress Concentration Factor

Journal of Engineering Mechanics, 1983
The relation between the stress intensity of the corner with an arbitrary angle and the stress concentration factor is investigated. In the thin plate bending problem and the plane elastic problem, the relation is concerned with stress conditions, symmetric to the bisector of a re‐entrant corner angle ranging from 180°–360°.
Norio Hasebe, Jiro Iida
openaire   +1 more source

Determination of stress intensity factors

1982
The application of fracture mechanics principles bears largely upon the stress intensity factor. An essential part of the solution of a fracture problem in linear elastic fracture mechanics is the establishment of the stress intensity factor for the crack problem under consideration. Since the introduction of fracture mechanics much effort has been put
openaire   +1 more source

Stress Intensity Factors for a Linear Stress Distribution

2003
The stress intensity factor for an edge crack of length a in a semi-infinite plate subjected to a pair of equal and opposite concentrated forces at a distance b from the plate edge (Figure 1) is given by [1] $$ K'_I = \frac{2} {{\sqrt \pi }}\frac{{1 + F\left( {{b \mathord{\left/ {\vphantom {b a}} \right.
openaire   +1 more source

Stress intensity factors for plates in flexure

The Aeronautical Journal, 1984
SummaryA method for determining stress intensity factors for cracked plates is proposed. The method uses a generalisation of Westergaard's stress functions to describe the stress intensity at the crack. Eigenfunctions of angular regions are used to satisfy the boundary conditions.
openaire   +1 more source

A note on cylinder stress-intensity factors

International Journal of Pressure Vessels and Piping, 1975
Abstract A comparison is made between Shannon's finite element K results for internally pressurised thick-walled cylinders with one and two radial cracks and Bowie and Freese's mapping-collocation results for the same geometries. The comparison is good except for shallow cracks relative to the cylinder wall thickness. Based on the nature of the
openaire   +1 more source

Stress Intensity Factor

2020
openaire   +1 more source