TY - CHAP

T1 - Study of intrinsic and extrinsic size effects on shear bands in metallic glasses

AU - Klusemann, Benjamin

AU - Soyarslan, C.

AU - Bargmann, Swantje

N1 - Conference code: 24

PY - 2016

Y1 - 2016

N2 - In the present contribution intrinsic and extrinsic size effects on the shear band propagation behavior in metallic glasses arestudied. To this end, a thermodynamically consistent finite strain viscoplasticity model is formulated. The strongly coupled and highly nonlinearsystem of field equations consisting of deformation, free volume and plastic strain field, is implemented into the finite element method,resulting in a non-local model formulation. The results show that the proposed continuum plasticity model is well suited to predict stable ordelayed shear localization process with decreasing sample size. With an underlying microstructure, the material behavior in metallic glassescan be significantly influenced, as demonstrated numerically in this contribution on the basis of porous structures.

AB - In the present contribution intrinsic and extrinsic size effects on the shear band propagation behavior in metallic glasses arestudied. To this end, a thermodynamically consistent finite strain viscoplasticity model is formulated. The strongly coupled and highly nonlinearsystem of field equations consisting of deformation, free volume and plastic strain field, is implemented into the finite element method,resulting in a non-local model formulation. The results show that the proposed continuum plasticity model is well suited to predict stable ordelayed shear localization process with decreasing sample size. With an underlying microstructure, the material behavior in metallic glassescan be significantly influenced, as demonstrated numerically in this contribution on the basis of porous structures.

KW - Engineering

UR - http://iutam.org/wp-content/uploads/2017/02/ICTAM_Proceedings_Vol_3.pdf

UR - https://www.mendeley.com/catalogue/60744e19-d489-3945-8dc2-5ba93fc3fb94/

M3 - Published abstract in conference proceedings

SN - 978-0-660-05459-9

VL - 3

SP - 2524

EP - 2525

BT - Contributions to the Foundations of Multidisciplinary Research in Mechanics

A2 - Floryan, J. M.

PB - International Union for Theoretical and Applied Mechanics

T2 - International Congress of Theoretical and Applied Mechanics - XXIV ICTAM 2016

Y2 - 21 August 2016 through 26 August 2016

ER -