Accession Number : AD0752573

Title :   A Phenomenological Criterion for Uniaxial Yield of Ductile Materials.

Descriptive Note : Final rept.,

Corporate Author : TEXAS A AND M UNIV COLLEGE STATION DEPT OF MECHANICAL ENGINEERING

Personal Author(s) : Wolko,Howard S. ; Tsai,Ping Y.

Report Date : SEP 1972

Pagination or Media Count : 45

Abstract : A phenomenological criterion for uniaxial yield of ductile materials is presented. The criterion is based on the occurrence of a detectable extremum in the deformation induced temperature-time curve. Experimental evidence obtained from test of mild (1020) steel substantiate the validity of the criterion and provide information on the manner in which Poisson's ratio changes from its elastic value to its incompressible value during elastic-plastic transition. (Author)

Descriptors :   (*DUCTILITY, MATERIALS), (*STEEL, DEFORMATION), ELASTIC PROPERTIES, YIELD POINT

Subject Categories : Metallurgy and Metallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE