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Stress concentration factors due to typical geometric discontinuities for shaft design by numerical simulation

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Conference

2013 ASEE Annual Conference & Exposition

Location

Atlanta, Georgia

Publication Date

June 23, 2013

Start Date

June 23, 2013

End Date

June 26, 2013

ISSN

2153-5965

Conference Session

Materials

Tagged Division

Mechanical Engineering

Page Count

16

Page Numbers

23.1091.1 - 23.1091.16

Permanent URL

https://peer.asee.org/22476

Download Count

109

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Paper Authors

biography

Xiaobin Le P.E. Wentworth Institute of Technology

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Associate Professor Xiaobin Le, PhD, P.Eng, specialization in Computer Aided Design, Mechanical Design, Finite Element Analysis, Fatigue Design and Reliability, Department of Mechanical Engineering and Technology, College of Engineering and Technology, Wentworth Institute of Technology, Boston, MA 02115, Phone:617-989-4223, Email: LEX@WIT.EDU

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biography

Zelong Le Wentworth Institute of Technology

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Currently a Sophomore in Electrical Engineering (BSEE) in the department of Electrical Engineering and Technology, College of Engineering and Technology, Wentworth Institute of Technology, Boston, MA, 02115.
Email: LEZ@WIT.EDU

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Abstract

Stress concentration factors due to typical geometric discontinuities for shaft design by numerical simulationStress concentrations are caused when there are geometric discontinuities. Step shoulders with fillets, key seats and retaining-ringgrooves in shafts are the typical geometric discontinuities. In most textbooks of mechanical component designs, the stressconcentration factors for the step shoulders with different fillets in shafts are fully explored and presented by sets of stressconcentration factor curves. The preliminary stress concentration factors of retaining ring grooves are also provided. Key seats aretypical features of shafts, but no related stress concentration factor curves due to key seats are listed and shown. No full set ofpreliminary stress concentration factors due to key seats for shaft design is presented. When I discussed shaft design with mymechanical students in mechanical component design course, students always felt lost because no recommendation or curves for thestress concentration factors due to key seats and retaining-ring grooves are provided for conducting shaft design. In this paper, thestress concentration phenomena due to end-mill key seats, the sled runner key seats, and retaining-ring grooves on different nominalshaft diameters have been fully and systematically explored by numerical simulation, that is, Finite Element Analysis. A set of stressconcentration factor curves due to key seats and retaining-ring grooves will be presented. The results presented in this paper willgreatly facilitate mechanical students to conduct the shaft design.

Le, X., & Le, Z. (2013, June), Stress concentration factors due to typical geometric discontinuities for shaft design by numerical simulation Paper presented at 2013 ASEE Annual Conference & Exposition, Atlanta, Georgia. https://peer.asee.org/22476

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