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A Comparative Study of Indentation Deformation Fields in Porous Ductile and Brittle Solids

Yadav, Shwetabh and Sagapuram, Dinakar and Murthy, Tejas G (2017) A Comparative Study of Indentation Deformation Fields in Porous Ductile and Brittle Solids. In: Sixth Biot Conference on Poromechanics, July 9–13, 2017, Paris, France, pp. 945-951.

Full text not available from this repository.
Official URL: https://doi.org/10.1061/9780784480779.117

Abstract

Increased usage of porous solids in the aerospace, automobile and infrastructure sectors necessitates understanding of the mechanics of large deformation processes. We present the results of a comparative experimental study of evolving deformation fields in porous brittle and porous ductile solids under plane-strain indentation. Gypsum (porosity = 37%) and sintered copper (porosity = 15%) have been used as model materials. A wedge indenter with apical angle of 120° was used to perform the indentation experiments. Images of the region surrounding the indenter were captured using a high-speed camera and microscope assembly. Images captured during the experiments were analysed using particle image velocimetry (PIV) algorithm in order to obtain velocity, strain-rate and strain field maps. Studies using indentation platforms provide a theoretical backing for many manufacturing processes such as drilling and machining.

Item Type: Conference Paper
Publisher: American Society of Civil Engineers (ASCE)
Additional Information: The Copyright of this article belongs to the American Society of Civil Engineers (ASCE)
Keywords: Deformation; Porosity; Velocity measurement; Comparative studies; Deformation process; Indentation deformation; Indentation experiment; Infrastructure sector; Manufacturing process; Particle image velocimetries; Plane strain indentation; Strain rate
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 31 May 2022 06:34
Last Modified: 31 May 2022 06:34
URI: https://eprints.iisc.ac.in/id/eprint/72999

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