Journal ArticleDOI
Design and development of a miniaturized multiaxial test setup for in situ x-ray diffraction experiments.
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TLDR
In this article, a stand-alone multi-axial loading test setup was developed to test miniature samples under uniaxial tension and compression stress states, and good agreement in stress-strain responses was observed.Abstract:
In this work, a novel stand-alone multi-axial loading test setup was developed to test miniature samples under uniaxial tension, uniaxial compression, in-plane biaxial tension, and biaxial compression stress states. Good agreement in stress–strain responses was observed between the uniaxial experiments carried out using the miniature sample geometry in the custom-built setup and the uniaxial standard geometry in a universal testing machine. With regard to biaxial experiments, the full-field strain captured using digital image correlation for the biaxial specimens revealed strain homogeneity in the central gage section of the sample. Furthermore, the in situ capability of the setup was demonstrated by integrating it with a commercial laboratory x-ray diffractometer, and good agreement was found between the calculated stress values from the load sensor and the stress obtained using x-ray diffraction.read more
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The role of brass texture on the deformation response of 7075-T651 aluminum alloy under equi-biaxial tension
Nedunchezhian Srinivasan,R. Velmurugan,Lalith Kumar Bhaskar,Satish Kumar Singh,Bhanu Pant,Ravi Kumar +5 more
TL;DR: In this article, the influence of equi-biaxial stress state on the plastic strain response of AA7075-T651 alloy until fracture is studied. But, the failure ductility as a function of stress state is evaluated using non-contact digital image correlation technique.
Journal ArticleDOI
Mechanical, microstructural and in-situ neutron diffraction investigations of equi-biaxial Bauschinger effects in an interstitial-free DC06 steel
Markus Härtel,Christian Illgen,Tobias Panzner,Enrico Bruder,Stefan Schmaltz,S. Van Petegem,Kai Willner,Karsten Durst,H. Van Swygenhoven,Martin F.-X. Wagner +9 more
TL;DR: In this paper , the authors used in-plane loading to investigate the Bauschinger effects in the sheet metal DC06 under well-defined equi-biaxial loading conditions, which can be rationalized by considering the evolution of dislocation densities and the formation of substructures, which are related to intergranular and intragranular stresses.
References
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A critical review of experimental results and constitutive descriptions for metals and alloys in hot working
Yong-Cheng Lin,Xiao-Min Chen +1 more
TL;DR: In this paper, a critical review on some experimental results and constitutive descriptions for metals and alloys in hot working, which were reported in international publications in recent years, is presented.
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Continuum Models of Ductile Fracture: A Review
TL;DR: In this paper, the authors present a review of the material constitutive equations and computational tools which have been recently developed to simulate ductile rupture and fracture, which are used in structural computations.
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Measurement and analysis of differential work hardening in cold-rolled steel sheet under biaxial tension
TL;DR: In this article, a servo-controlled biaxial tensile testing machine was used to determine the shape of the work contours of a steel sheet under linear loading paths.
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A Review of Speckle Pattern Fabrication and Assessment for Digital Image Correlation
Y.L. Dong,Bing Pan +1 more
TL;DR: In this paper, a review systematically presents the speckle pattern classification and fabrication techniques for various samples and scales, as well as some typical quality assessment metrics, considering the huge diversity in test materials, spatial scales and experimental conditions.
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A review of planar biaxial tensile test systems for sheet metal
Alan Hannon,Peter Tiernan +1 more
TL;DR: A comprehensive review of the main biaxial test systems that have been developed with primary focus on sheet metal testing is presented in this article, which includes a review of baoxial tensile test devices and specimen design for baoXial testing.