COMMULATIVE DAMAGE OF ASPHALT MATERIALS UNDER REPEAT-LOAD INDIRECT TENSION
This report summarizes the results of an investigation of the applicability of Miner's Hypothesis to the fatigue data which were obtained using the dynamic indirect tensile test. Relationships between fatigue life and stress were established for simple-loading fatigue data drom which Miner's Hypothesis could be verified for compound-loading fatigue life prediction. The hypothesis was evaluated experimentally by conducting compound-loading fatigue tests in which two stress level were used. In addition, it was shown that it was possible to predict the permanent deformation which occur under two-level compound loading conditions from the simple summation of damage increments from simple-loading permanent deformation curves. Statistical estimates of the fatigue life of the asphalt mixtures investigated are presented from both the simple-loading and compound-loading test series.
- Work done in corporation with the Federal Highway Administration, Department of Transportation.
University of Texas, AustinCenter for Highway Research, 200 West 21st Street
Austin, TX USA 78712
- Cowher, C E
- Kennedy, T W
- Publication Date: 1975-1
- Features: Appendices; Figures; References; Tables;
- Pagination: 242 p.
- TRT Terms: Accelerated tests; Asphalt mixtures; Deformation; Fatigue (Mechanics); Fatigue tests; Loss and damage; Repeated loads; Stresses; Tension; Tension tests
- Uncontrolled Terms: Fatigue life; Indirect tensile test
- Old TRIS Terms: Indirect tension
- Subject Areas: Highways; Materials;
- Accession Number: 00129037
- Record Type: Publication
- Report/Paper Numbers: CFHR 3-9-72-183-3 Intrm Rpt.
- Contract Numbers: 3-9-72-183-3
- Files: TRIS
- Created Date: Mar 10 1976 12:00AM