Model Development for Residual Stress Consideration in Design for Laser Metal 3D Printing of Maraging Steel 300

Simple item page
dc.creatorChahal, Vedant
dc.creatorTaylor, Robert M.
dc.date.accessioned2021-11-09T19:46:34Z
dc.date.available2021-11-09T19:46:34Z
dc.date.issued2018
dc.description.abstractDesign optimization of laser metal 3D printed structural components requires prediction of build-process induced residual stresses that vary with part geometry and affect distortion and support requirements during the build. Finite element residual stress state evaluation is not feasible within the computational constraints of iterative optimization. Alternatively, a simplified theoretical model is presented for predicting the residual stresses induced during Selective Laser Melting of maraging steel. Furthermore, a Design of Experiments (DOE) approach is implemented to verify the theoretical model and develop a response surface suitable for design optimization. The DOE uses cantilever geometry with length, thickness, and fillet radius as variables and shows overhang length to have the greatest influence on residual stresses. Geometries with high stiffness lead to lower deformations and tend to retain high stresses. The presented model can predict the trend of residual stresses for different geometries and can be used in shape optimization.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/90144
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/17065
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2018 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectresidual stressen_US
dc.subjectmaraging steel 300en_US
dc.subjectmodel developmenten_US
dc.subjectlaser metal 3D printingen_US
dc.subjectselective laser meltingen_US
dc.subjectdesign of experimentsen_US
dc.titleModel Development for Residual Stress Consideration in Design for Laser Metal 3D Printing of Maraging Steel 300en_US
dc.typeConference paperen_US

Access full-text files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
2018-52-Chahal.pdf
Size:
892.09 KB
Format:
Adobe Portable Document Format
Description:
Download

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.64 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

2018 International Solid Freeform Fabrication Symposium