About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Calibration of the Johnson-Cook Material Model for Additively Manufactured 304LSS Parts: Modeling and Experiments |
Author(s) |
Manoj Kumar Reddy Rangapuram, Siva Sai Krishna Dasari, Sriram Praneeth Isanaka, Mario F. Buchely, Joseph W Newkirk, K. Chandrashekhara |
On-Site Speaker (Planned) |
Siva Sai Krishna Dasari |
Abstract Scope |
Selective laser melting (SLM) is a type of additive manufacturing technique which uses a powder bed to form complex metal parts in a layer-by-layer process. This study aims to understand the material flow of parts manufactured by SLM process using 304L stainless steel powder, which is widely used in numerous applications. The tensile specimens were manufactured using 304LSS powder through SLM process. Quasi-static high temperature tensile tests were carried out to calibrate the parameters of the constitutive Johnson-Cook strength model. To conduct the tensile tests, different temperatures (25 oC, 150 oC and 250 oC) and strain rates (0.1 s-1, 0.01 s-1 and 0.001 s-1) were used. The material model developed was used in numerical simulation of the tensile tests and compared with the experimental results. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |