Affiliation:
1. Department of Mechanical Engineering, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
Abstract
Abstract
Weight functions for the surface and the deepest point of an internal longitudinal semi-elliptical crack in a thick-wall cylinder (Ri/t = 1) were derived from a general weight function and two reference stress intensity factors. For several linear and nonlinear crack face stress, fields, the weight functions were validated against finite element data. Stress intensity factors were also calculated for the Lame´ through the thickness stress distribution induced by internal pressure. The weight functions appear to be particularly suitable for fatigue and fracture analysis of surface semi-elliptical cracks in complex stress fields. All stress intensity factor expressions given in the paper are valid for cylinders with the inner-radius-to-wall-thickness ratio, Ri/t = 1.
Subject
Mechanical Engineering,Mechanics of Materials,Safety, Risk, Reliability and Quality
Reference18 articles.
1. Andrasic
C.
P.
, and
ParkerA.
P., 1984,
“Dimensionless Stress Intensity Factors for Cracked Thick
Cylinder under Polynomial Crack Face Loading,”
Engineering Fracture Mechanics, Vol. 19,
No. 2, pp.
187–193.
2. Bueckner
H.
F.
, 1970,
“A Novel Principle for the Computation of Stress Intensity
Factors,” Zeitschrift Angewandte Mathematik und
Mechanik, Vol. 50, pp.
529–546.
3. Desjardins
J.
L.
, BurnsD.
J., and
ThompsonJ.
C., 1991,
“A Weight Function Technique for Estimating Stress Intensity
Factors for Cracks in High Pressure Vessels,” ASME
JOURNAL OF PRESSURE VESSEL TECHNOLOGY, Vol. 113,
Feb., pp. 10–21.
4. Fett
T.
,
MattheckC.,
and
MunzD.,
1987, “On the Calculation of Crack Opening
Displacement From the Stress Intensity Factor,”
Engineering Fracture Mechanics, Vol. 27,
No. 6, pp.
697–715.
5. Forman
R.
G.
, MettuS.
R., and
ShivakumarV.,
1992, “Fracture Mechanics Evaluation of Pressure
Vessels and Pipes in Aerospace Applications,” ASME
PVP-Vol. 241, Fatigue, Fracture and
Risk, pp. 25–36.
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