PERIODIC OVERLOADS AND RANDOM FATIGUE BEHAVIOR

THE STRESS-STRAIN RESPONSE FOR A COMPLEX VARYING LOAD WAS ANALYSED ON THE BASIS OF A CYCLIC STRESS-STRAIN CURVE OBTAINED BY INCREMENTAL STEP STRESS TESTS. A NEW CUMULATIVE FATIGUE DAMAGE LAW WAS PROPOSED, CONSIDERING THE FACT THAT THE CYCLIC STRESS-STRAIN CURVE FOR COMPLEX VARYING LOAD DIFFERS FROM THAT FOR CONSTANT AMPLITUDE CYCLIC LOAD. ASSUMING THAT LOCAL STRESS-STRAIN BEHAVIOR AT A STRESS CONCNETRATION OR A CRACK TIP IS SIMILAR TO THAT OF THE BULK MATERIAL, THE LAW WAS EXTENDED TO THE CASE OF NOTCHED SPECIMEN, AND THE EXTENSION WAS VERIFIED BY EXPERIMENT. /ASTM/

• Supplemental Notes:
  • Rept NO: ASTM 519
• Corporate Authors:

  Cyclic Stress-strain Behavior

  ,    
• Authors:
  • WATSON, P
  • Hoddinott, D S
  • Morman, J P
• Publication Date: 1971-12

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 271-84
• Serial:
  • Publication of: Cyclic Stress-strain Behavior
  • Publisher: Cyclic Stress-strain Behavior

Subject/Index Terms

• TRT Terms: Deformation curve; Easements; Fatigue (Mechanics); Loss and damage; Planting; Repeated loads; Stresses
• Uncontrolled Terms: Stress concentration
• Old TRIS Terms: Notch
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00209941
• Record Type: Publication
• Report/Paper Numbers: S Tech Pub
• Files: TRIS
• Created Date: Oct 24 1973 12:00AM