Stress and strain range predictions for axisymmetric and two-dimensional components with stress concentrations and comparisons with notch stress-strain conversion rule estimates
| Autor: | S J Hardy, A. R Gowhari-Anaraki |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Materials science
Strain (chemistry) business.industry Applied Mathematics Mechanical Engineering Stress–strain curve Rotational symmetry Mechanics Structural engineering Strain hardening exponent Finite element method Condensed Matter::Materials Science Mechanics of Materials Modeling and Simulation Range (statistics) Axial symmetry business Stress concentration |
| Zdroj: | The Journal of Strain Analysis for Engineering Design. 28:209-221 |
| ISSN: | 2041-3130 0309-3247 |
| DOI: | 10.1243/03093247v283209 |
| Popis: | A comparison is made between finite element predictions of strain and strain range for hollow tubes with axially loaded axisymmetric internal projections and values obtained from the simple notch stress-strain conversin (NSSC) rules. Data from other published analyses, where notch strains were predicted, support this investigation. The comparison is made for a variety of monotonic and cyclic loads, material hardenning assumptions, and geometries. An intermediate rule ( m = 0.5) which appears to correlate with the finite element predictions to a reasonable degree of accuracy, is identified. In addition, an analytical relationship is suggested for calculating strain and strain range, in terms of load level, strain hardening assumption, and elastic stress concentration factor (SCF) for this type of axisymmetric component. Also, a comparison is made between some previously published experimental and numerical data, obtained for other two-dimensional and axisymmetric problems, and NSSC rule estimates in order to confirm the suitability of the intermediate rule. Finally, on the basis of these comparisons, an approximate procedure for predicting stress and strain ranges under conditions of gross yielding is presented for plane stress, plane strain, and axisymmetric problems. |
| Databáze: | OpenAIRE |
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