The paper presents an aproximate analytic method for determination of the stored energy of plastic deformation during cold bending of metal tubes at bending machines. Calculations were performed for outer points of the tube layers subjected to tension and compression (the points of maximum strains). The percentage of stored energy related to the plastic strain work was determined and the results were presented in graphs. The influence and importance of the stored energy of plastic deformation on the service life of pipeline bends are discussed.

# International Journal of Applied Mechanics and Engineering

### The Journal of University of Zielona Góra

Editor-in-Chief: Walicki, Edward

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CiteScore 2016: 0.12

# Stored Energy of Plastic Deformation in Tube Bending Processes

#### Open Access

Keywords : plastic deformation; tube bending; stored energy; austenitic steel; boiler steel

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## About the article

**Published Online**: 2013-04-19

**Published in Print**: 2013-03-01

**Citation Information: **International Journal of Applied Mechanics and Engineering, ISSN (Print) 1734-4492, DOI: https://doi.org/10.2478/ijame-2013-0015. Export Citation

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