ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 10

Test Devices for Strength Measurements of Bars Under Contact Loading

Fett, T
Forschungszentrum Karlsruhe, Institut für Materialforschung II, Karlsruhe,

Munz, D
Forschungszentrum Karlsruhe, Institut für Materialforschung II, Karlsruhe,

Thun, G
Forschungszentrum Karlsruhe, Institut für Materialforschung II, Karlsruhe,

(Received 5 May 2000; accepted 12 September 2000)

Abstract

Bars loaded by opposite concentrated forces via rollers are appropriate specimens for the determination of strength under contact loading. Measured multiaxial strength values are located in the second quadrant (σ₁ > 0, σ₂ < 0) of the biaxial failure diagram. In this paper stress solutions for the proposed strength specimens are provided. As practical applications of the proposed specimens, the strengths for two aluminas, an AIN, and a HPSN ceramic, were determined and compared with bending strength results.

Keywords:
contact strength, multiaxiality, roller loading devices, stress distribution

Paper ID: JTE12385J
DOI: 10.1520/JTE12385J
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