2011
DOI: 10.1007/s11340-011-9482-3
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A Shear Compression Disk Specimen with Controlled Stress Triaxiality under Quasi-Static Loading

Abstract: This paper introduces a double shear axisymmetric specimen (Shear Compression Disk) and the methodology to extract flow and fracture properties of ductile materials, under various stress triaxiality levels. A thorough numerical investigation of the experimental set-up is performed, which reveals that the stresses are quite uniformly distributed in the gauge section during all the stages of the test. The attainable level of stress triaxiality (with pressures of up to 1.9 GPa) ranges from −0.1 to 1, which can be… Show more

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Cited by 20 publications
(5 citation statements)
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“…AA 7075-T651 was used for the target plates [15][16][17] (Table 1). A toughened epoxy adhesive Betamate 1044 was employed to model the interface between tablets and layers ( Table 2).…”
Section: Problem Descriptionmentioning
confidence: 99%
See 2 more Smart Citations
“…AA 7075-T651 was used for the target plates [15][16][17] (Table 1). A toughened epoxy adhesive Betamate 1044 was employed to model the interface between tablets and layers ( Table 2).…”
Section: Problem Descriptionmentioning
confidence: 99%
“…(17) gives the yield function in stress space, written here separately for the tensile and compressive mode for the sake of clarity and also illustrated in Fig. 2a:…”
Section: User Defined Cohesive Element Formulationmentioning
confidence: 99%
See 1 more Smart Citation
“…Additionally, microscopic experiments revealed that the metallurgical characteristics and microstructure of the alloy have obviously changed in the SDL process. For example, the high strength shear stress induces the phase transformation of α-phase and β-phase of alloy [ 11 , 14 ], high strain rate deformation leads to the formation of high density dislocation structure [ 15 , 16 , 17 ], severe shear strain results in the generations of deformation twinning [ 18 , 19 , 20 , 21 ] and the formation of DXR grains [ 11 , 12 , 22 ]. In the SDL, heavily deformed coarse grains with large size changed into the nanoscale grains or ultrafine grains which provide more slip systems in co-operation for the ASB formation [ 23 , 24 , 25 ].…”
Section: Introductionmentioning
confidence: 99%
“…The parameters for this material were taken from [26][27][28] and are shown in Table 1. To model the interface between layers, toughened epoxy adhesive Betamate 1044 was used ( Table 2).…”
Section: Materials Modelsmentioning
confidence: 99%