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:

1967-06-01

Pagination or Media Count:

32.0

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 authors 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