CYCLIC INELASTIC DEFORMATION AND THE FATIGUE NOTCH FACTOR
CYCLIC INELASTIC DEFORMATION RESPONSE AND THE FATIGUE NOTCH FACTOR ARE PRESENTED AND DISCUSSED FOR TWO METALS OF CONTRASTING STRESS-STRAIN BEHAVIOR (2024-T351 ALUMINUM ALLOY AND SAE 1015 MILD STEEL). THIN CIRCULAR OR ELLIPTICAL NOTCH PLATES FABRICATED FROM THESE METALS WERE SUBJECTED TO CYCLIC STRAINING IN A SERVO-CONTROLLED TESTING MACHINE. EXPERIMENTAL RESULTS OBTAINED FROM THE DEFORMATION STUDIES INDICATE THAT FOR SMALL SCALE CONFINED PLASTICITY, THE TRANSIENT NOTCH RESPONSE HAD LITTLE EFFECT ON NOMINAL DEFORMATION RESISTANCE. HOWEVER, AS THE SIZE OF THE ZONE INCREASED OR THE DEGREE OF CONFINEMENT DECREASED, TRANSIENT NOTCH RESPONSE WAS REFLECTED IN THE OVERALL DEFORMATION RESPONSE. THESE RESULTS ARE DISCUSSED IN TERMS OF CYCLIC STRESS AND STRAIN CONCENTRATION FACTORS AND RELATED TO NOTCH PLATE DEFORMATION THROUGH NEUBER'S RULE. IN THE LOW ENDURANCE REGION, THE RESULTS INDICATE THAT THE DEFORMATION ANALYSIS EMPLOYED, RATHER THAN A MATERIAL "SIZE EFFECT," IS RESPONSIBLE FOR VALUES OF K SUB F LESS THAN K SUB T. /ASTM/
-
Supplemental Notes:
- ASTM 519
-
Corporate Authors:
Cyclic Stress-strain Behavior
, -
Authors:
- LEIS, B N
- Gowda, C V
- Topper, T H
- Publication Date: 1971-12
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 133-50
-
Serial:
- Publication of: Cyclic Stress-strain Behavior
- Publisher: Cyclic Stress-strain Behavior
Subject/Index Terms
- TRT Terms: Aluminum alloys; Deformation; Deformation curve; Fatigue (Mechanics); Forecasting; Notching (Cutting); Soils; Solidification; Structural plates; Testing equipment
- Old TRIS Terms: Notched plates; Soil solidification
- Subject Areas: Bridges and other structures; Geotechnology; Highways;
Filing Info
- Accession Number: 00209935
- Record Type: Publication
- Report/Paper Numbers: S Tech Pub
- Files: TRIS
- Created Date: Oct 24 1973 12:00AM