Mechanics of Fatigue Crack Closure
Author : Wolf Elber
Publisher : ASTM International
Page : 671 pages
File Size : 27,9 MB
Release : 1988
Category : Fracture mechanics
ISBN : 0803109962
Author : Wolf Elber
Publisher : ASTM International
Page : 671 pages
File Size : 27,9 MB
Release : 1988
Category : Fracture mechanics
ISBN : 0803109962
Author : EP. Phillips
Publisher :
Page : 11 pages
File Size : 22,76 MB
Release : 1988
Category : Aluminum alloys
ISBN :
Crack opening loads were determined in load-shedding fatigue crack growth threshold tests on 2024-T3 aluminum alloy at stress ratios R of -2, -1, 0, 0.33, 0.5, and 0.7. The effects of load-shedding procedure and rate were investigated. Values of threshold ?K were found to vary significantly with R, whereas values of threshold effective ?K did not. That is, the variation of threshold ?K with R was almost completely explained by accounting for the measured variation in crack opening load behavior with R. The load-shedding guidelines of ASTM Test Method for Measurement of Fatigue Crack Growth (E 647) produced a threshold ?K value for R = 0.7 that was in agreement with the value determined using a procedure that should minimize closure effects (constant-Kmax, increasing-Kmin test). At both R = 0 and R = 0.7, high load-shedding rates produced high values of threshold ?K caused by large closure effects.
Author : Gregory William Levan
Publisher :
Page : 178 pages
File Size : 34,43 MB
Release : 1984
Category : Aluminum alloys
ISBN :
Author : J. C. Newman
Publisher : ASTM International
Page : 436 pages
File Size : 11,80 MB
Release : 2000
Category : Fatigue
ISBN : 0803126247
Annotation Contains 24 papers from the November, 1998 symposium of the same name, sponsored by the ASTM Committee E8 on Fatigue and Fracture, and presented by Newman and Piascik (both of the NASA Langley Research Center). The papers focus on such areas as fatigue-crack growth threshold mechanisms, loading and specimen-type effects, analyses of fatigue-crack-growth-threshold behavior, and applications of threshold concepts and endurance limits to aerospace and structural materials. Annotation copyrighted by Book News, Inc., Portland, OR.
Author : J. C. Newman (Jr)
Publisher :
Page : 36 pages
File Size : 26,83 MB
Release : 1999
Category :
ISBN :
Author : Peter Hudulak
Publisher :
Page : 16 pages
File Size : 36,59 MB
Release : 1981
Category : Airframes
ISBN :
Author :
Publisher :
Page : 14 pages
File Size : 45,83 MB
Release : 1997
Category :
ISBN :
Author : R. Craig McClung
Publisher : ASTM International
Page : 487 pages
File Size : 31,69 MB
Release : 1999
Category : Fracture mechanics
ISBN : 0803126115
Author : Anders F. Blom
Publisher :
Page : 34 pages
File Size : 45,59 MB
Release : 1983
Category :
ISBN :
Author : Robert G. Dubensky
Publisher :
Page : 36 pages
File Size : 42,22 MB
Release : 1971
Category : Aluminum alloys
ISBN :