Plastic Deformation and Failure Mechanisms in Notched Nano-Scale Metallic Glass Specimens

Narasimhan, R and Dutta, T and Singh, I (2019) Plastic Deformation and Failure Mechanisms in Notched Nano-Scale Metallic Glass Specimens. [Book Chapter]

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Abstract

Finite element analysis (FEA) of tensile loading of nano-scale double edge notched (DEN) metallic glass (MG) specimens are conducted using a non-local plasticity model. The effects of notch acuity on the plastic deformation response of the samples are studied. Transition is observed from localized plastic deformation by single shear band (SSB) to necking of the ligament and further to double shear bands (DSBs) with increase in notch acuity. These results corroborate with molecular dynamics (MD) simulations and are rationalized from spread of plastic zone in the ligament.

Item Type:	Book Chapter
Publication:	Structural Integrity
Publisher:	Springer
Additional Information:	The copyright for this article belongs to Springer
Keywords:	Failure mechanisms; Metallic glasses; Notched specimens
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	02 Dec 2022 07:25
Last Modified:	02 Dec 2022 07:25
URI:	https://eprints.iisc.ac.in/id/eprint/78148

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