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Published in: International Journal of Material Forming 3/2020

29-08-2019 | Original Research

Warm deep drawing behavior of Inconel 625 alloy using constitutive modelling and anisotropic yield criteria

Authors: Nitin Kotkunde, Anand Badrish, Ayush Morchhale, Prathamesh Takalkar, Swadesh Kumar Singh

Published in: International Journal of Material Forming | Issue 3/2020

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Abstract

The present work provides a systematic approach to investigate anisotropic yield criteria and constitutive modeling and its applicability in finite element analysis of warm deep drawing behavior of Inconel 625 alloy. Firstly, the material properties and flow stress behavior of Inconel 625 alloy have been determined at temperatures (room temperature (RT) to 400 °C at an interval of 100 °C) at (0.0001–0.1 s−1) strain rates using uniaxial tensile tests. The flow stress behavior is influenced significantly by strain rate and temperature variation. Various mechanical properties and anisotropic parameters have been studied at different strain rates and temperatures. On the basis of flow stress data, Sellers constitutive model with different anisotropic yield criteria namely; Hill’48 and Barlat’89 has been developed. Subsequently, experiments of deep drawing have been conducted at various processing conditions. The process parameters effect on Limiting Draw Ratio (LDR), thickness distribution, Maximum Thinning Rate (MTR) and Thickness Deviation (TD) has been investigated. Furthermore, Sellers constitutive model coupled with anisotropic yield criteria has been implemented in ABAQUS software using UMAT subroutine. Sellers model coupled with Barlat’89 yield criterion displayed an accurate prediction of warm deep drawing behavior.

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Metadata
Title
Warm deep drawing behavior of Inconel 625 alloy using constitutive modelling and anisotropic yield criteria
Authors
Nitin Kotkunde
Anand Badrish
Ayush Morchhale
Prathamesh Takalkar
Swadesh Kumar Singh
Publication date
29-08-2019
Publisher
Springer Paris
Published in
International Journal of Material Forming / Issue 3/2020
Print ISSN: 1960-6206
Electronic ISSN: 1960-6214
DOI
https://doi.org/10.1007/s12289-019-01505-3

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