
Accession Number : ADA117674
Title : FiniteElement Analysis of Some Full and PartialRing CrackPropagation Test Specimens.
Descriptive Note : Final rept. Jun 79May 81,
Corporate Author : SYSTEMS RESEARCH LABS INC DAYTON OH RESEARCH APPLICATIONS DIV
Personal Author(s) : Ashbaugh,Noel E. ; Ahmad,Jalees
Report Date : MAR 1982
Pagination or Media Count : 63
Abstract : Ringshaped specimens containing cracks are analyzed by a finiteelement method. Results are obtained for the stressintensity factor and the deformation or compliance of the specimen at locations which are convenient for experimental measurement. The specimens which are analyzed are the fullring geometries under tensile and compressive loads having a single or double crack emanating from the inner radius, with the crack plane perpendicular to the load line for tensile loads and coinciding with the load line for compressive loads. A modified Cspecimen and half rings under tensile loads having a single crack are analyzed. Results are obtained for various crack lengths and aspect ratios (inner radius divided by outer radius) equal to 0.5, 0.333, and 0.25. The results for the modified Cspecimen are determined only for an aspect ratio of 0.5. Functional expressions are given for the stressintensity factor and the compliance for the singlecrack ring tension specimen and the modified Cspecimen. (Author)
Descriptors : *Cracking(Fracturing), *Rings(Mathematics), *Finite element analysis, Test methods, Stress strain relations, Intensity, Deformation, Aspect ratio, Fatigue tests(Mechanics), Pressure measurement, Tensile stress, Compressive properties, Loads(Forces), Radius(Measure)
Subject Categories : Theoretical Mathematics
Solid State Physics
Distribution Statement : APPROVED FOR PUBLIC RELEASE