Accession Number : AD0760007
Title : Crack - Initiation Mechanisms.
Descriptive Note : Technical rept.,
Corporate Author : GEORGE WASHINGTON UNIV WASHINGTON D C INST FOR THE STUDY OF FATIGUE FRACTURE AND STRUCTURAL RELIABILITY
Personal Author(s) : Wood,William A. ; Gilmore,Charles M.
Report Date : APR 1973
Pagination or Media Count : 20
Abstract : Basic requirements are noted for initiating a crack in a solid. A brief outline is given of the arguments underlying current conventional dislocation theories. Finally attention is drawn to cases where these arguments can hardly hold and which seem to call for an alternative mechanism. One, a dynamic overload mechanism, is discussed and illustrated by scanning-electron micrographs. (Author Modified Abstract)
Descriptors : (*CRACK PROPAGATION, DYNAMICS), DISLOCATIONS, STRESSES, FATIGUE(MECHANICS), TITANIUM, STEEL, ELECTRON MICROSCOPY
Subject Categories : Metallurgy and Metallography
Solid State Physics
Distribution Statement : APPROVED FOR PUBLIC RELEASE