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Experimental and Finite Element Studies of Stretch Forming Process for ASS 316L at Elevated Temperature

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Title Experimental and Finite Element Studies of Stretch Forming Process for ASS 316L at Elevated Temperature
 
Creator Dharavath, Baloji
Naik, M T
Badrish, Anand
Buddi, Tanya
Saxena, Kuldeep K
 
Subject Austenitic stainless steel 316L
Stretching
Hot forming
Forming limit diagram
Limiting dome height
Finite element analysis
 
Description 744-749
Austenitic stainless steel 316 L grade is a material having extraordinary mechanical properties, low cost and easily
available. This is the reason it was used in various industrial and nuclear applications. In the present work, ASS 316L
nakazima specimens are stretched under hot forming conditions (750°C, 825°C and 900°C) at a constant strain rate (0.1s-1)
along with three different orientations. These six types of nakazima specimens were used to know the formability behaviour
of the material with the help of forming limit diagrams (FLD) obtained by the stretch forming process. A smaller change in
Punch load and an increase in displacement were observed, which indicates the formability improvement of ASS 316L sheet
metal with the increase in temperature. In addition, ABAQUS 6.13 computer code was applied for the prediction of
formability from 750°C to 900°C. To improve the accuracy of the simulation, a number of integration points
were accrued within the thickness direction, limiting dome height (LDH).The ductile fracture was observed from SEM
images for all the temperatures. A close agreement was found between experimental and simulated results.
 
Date 2023-01-20T10:39:46Z
2023-01-20T10:39:46Z
2023-01
 
Type Article
 
Identifier 0971-4588 (Print); 0975-1017 (Online)
http://nopr.niscpr.res.in/handle/123456789/61236
https://doi.org/10.56042/ijems.v29i6.70275
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJEMS Vol.29(6) [December 2022]