Accession Number : AD0727422

Title :   Brittleness of Steel, Its Connection with Low-Cycle Fatigue, and a Calculation Providing Warning of Brittle Failure,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Bykov,V. A. ; Nikishina,M. L.

Report Date : 05 FEB 1971

Pagination or Media Count : 10

Abstract : The article deals with brittle failure of ship-hard steel. It is concluded that low-cycle fatigue damage does not have an essential influence on the resistance of the investigated steel to plastic deformation, but does noticeably reduce resistance to brittle failure. Brittle failure is predetermined by an unfavorable form of the stressed state and also by operating conditions which have a negative influence on the totality of values of the steel strength during brittle failure and plastic deformation. In calculations providing forewarning of brittle failure it is advisable to compile dimensionless values of the stress parameter and rheological characteristics of the steel independently of the magnitude of external forces.

Descriptors :   (*STEEL, BRITTLENESS), FAILURE(MECHANICS), FATIGUE(MECHANICS), USSR

Subject Categories : Metallurgy and Metallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE