COMPARISON OF SCATTER UNDER PROGRAM AND RANDOH LOADING AND INFLUENCING FACTORS

THE PAPER DEALS WITH THE SCATTER UNDER PROGRAM AND RANDOM LOADING. FOR THE EXPLANATION OF THE RESULTS, CONSTANT AMPLITUDE TESTS AND TESTS WITH BIHARMONIC LOADING ARE ALSO INCLUDED IN THE STUDY. THE BASIS OF THE COMPARISON OF THE DATA IS THE LOGARITHMIC NORMAL DISTRIBUTION AND ITS PARAMETERS. IT WAS FOUND THAT SCATTER UNDER PROGRAM, RANDOM, AND BIHARMONIC LOADING IS IDENTICAL AND IS SIMILAR TO THE SCATTER DERIVED IN CONSTANT AMPLITUDE TESTS IN THE LIFE RANGE OF ABOUT 10 TO THE 5TH POWER LOAD CYCLES. THIS IS TRUE FOR LIFE AS WELL AS FOR CRACK PROPAGATION. MINER'S RULE OVERESTIMATES THE SCATTER, WHICH OCCURS IN TESTS SIMULATING IRREGULARLY VARYING SERVICE LOADS. AN IMPORTANT INFLUENCE ON SCATTER IS DUE TO THE TESTING MACHINE. /ASTM/

• Supplemental Notes:
  • ASTM 511
• Corporate Authors:

  Probabilistic Aspects of Fatigue

  ,    
• Authors:
  • Jacoby, G H
  • Nowack, H
• Publication Date: 1971-7

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 61-74
• Serial:
  • Publication of: Probabilistic Aspects of Fatigue
  • Publisher: Probabilistic Aspects of Fatigue

Subject/Index Terms

• TRT Terms: Cracking; Fatigue (Mechanics); Loads; Probability theory; Statistical analysis; Testing equipment
• Uncontrolled Terms: Crack propagation; Loading
• Subject Areas: Bridges and other structures; Data and Information Technology; Highways;

Filing Info

• Accession Number: 00209950
• Record Type: Publication
• Report/Paper Numbers: S Tech Pub
• Files: TRIS
• Created Date: Dec 4 1973 12:00AM