Accession Number : AD0670857

Title :   THEORETICAL DETERMINATION OF FATIGUE STRENGTH AT STRESS CONCENTRATION.

Descriptive Note : Scientific rept.,

Corporate Author : TECHNISCHE HOCHSCHULE MUNICH (WEST GERMANY) INSTITUT FUER TECHNISCHE MECHANIK

Personal Author(s) : Neuber,Heinz

Report Date : JUN 1967

Pagination or Media Count : 32

Abstract : The mechanism of stress and strain concentration at fatigue loading is governed by two fundamental effects. Within the yield range of ductile materials the macro-support effect is dominating which in this paper is represented by the results of a non-linear theory derived by the author. Within the high-cycle fatigue range the micro-support effect is governing which can be described by the author's theory of mean stress value, originally derived in connection with the calculation of sharply curved notches. In this theory a material constant of length dimension is introduced. Taking into account these two effects an approximate precalculation of the fatigue strength of notched construction parts is possible. (Author)

Descriptors :   (*MATERIALS, FATIGUE(MECHANICS)), METAL PLATES, RODS, STRAIN(MECHANICS), NOTCH SENSITIVITY, NOTCH TOUGHNESS, DEFORMATION, SHEAR STRESSES, YIELD POINT, MATHEMATICAL ANALYSIS, LOADS(FORCES), MODULUS OF ELASTICITY, CRACK PROPAGATION, AUSTENITE, CASTINGS, STEEL, COPPER ALLOYS, ALUMINUM ALLOYS, MAGNESIUM ALLOYS

Subject Categories : Metallurgy and Metallography
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE