Abstract

A previously developed finite element procedure for the solution of axi-symmetric creep deformation problems has been used to study the design of circumferentially notched bars for use in the creep-rupture testing of materials. Three bar geometries are studied in an attempt to pin-point the design features which enable a reasonably large volume of material to be subjected to a uniform state of tri-axial tension stress and strain. Bar geometries are identified which satisfy these requirements.

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