Journal Article10.1007/BF02324725
Development of an apparatus for biaxial testing using cruciform specimens
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TL;DR: The statistical method, coupled with a finite-element analysis of the specimen, was successfully applied to optimize the geometry of a cruciform specimen with a circular reduced central region.
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Abstract: A testing apparatus has been developed to study the behavior of sheet metals and composite materials under monotonic and cyclic biaxial loading conditions. This test facility employs cruciform specimens that are loaded in their plane. Problems encountered while developing the test system are discussed. We also discuss the difficulties common to test methods employing cruciform specimens. These relate to the design of a suitable specimen geometry and to the determination of the stresses throughout the specimen. A method for designing an optimal geometry for these specimens is presented. This method is based on the statistical tools of factorial and response surface designs. The statistical method, coupled with a finite-element analysis of the specimen, was successfully applied to optimize the geometry of a cruciform specimen with a circular reduced central region.
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Citations
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Design of a cruciform specimen for biaxial testing of fibre reinforced composite laminates
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Testing and modelling of material behaviour and formability in sheet metal forming
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References
Problems in creep testing under biaxial stress systems
TL;DR: Two types of creep testing machine, one to apply bi-axial tension to cruciform specimens and the other, torsion to disc-shaped specimens, have been constructed in the course of an investigaton of the behaviour of copper subject to multi-axisial stress systems as mentioned in this paper.
40
The behaviour of fatigue cracks subject to applied biaxial stress: a review of experimental evidence
E. W. Smith,K. J. Pascoe +1 more
TL;DR: In this paper, a review of the available published data on fatigue crack propagation under biaxial stress is presented, which is defined as the ratio of the in-plane principal stresses, crack angle with respect to the applied principal stress directions and stress intensity factor range.
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A high-strain biaxial-testing rig for thin-walled tubes under axial load and pressure
TL;DR: In this article, an experimental testing rig capable of subjecting thin-walled tubes to combined dynamic loadings in tension-compression with torsion and tension compression with internal-external pressure is presented.
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Low-Cycle Fatigue under Biaxial Stress
Michael W. Parsons,K J Pascoe +1 more
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TL;DR: In this article, the low-cycle fatigue behavior of a ferritic and an austenitic steel have been studied under various conditions of reversed biaxial strain and cyclically softened and hardened respectively.
35
Some experimental results on yield condition in plane stress state
R. Kreißig,J. Schindler +1 more
TL;DR: In this paper, the determination of yield locus curves for deep drawing sheet metal is described, based on the combination of biaxial tension tests on plane cross-shaped specimens with uni-axial tension and compression tests performed on conventional specimens.
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