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inchak at tatasteel.com Guest
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Posted: Fri Jul 15, 2005 1:20 pm Post subject: Message No 62 Bending of bars |
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Dear Mr. Rupen Goswami, You asked: "Could you also provide us with experimental values of strains on extreme fibers of TMT bars when bent at different radii."
Answer:
Tensile strain in the extreme fibre can be theoretically calculated for different mandrell diameters as follows:
For mandrell diamter = 3 x d - 25% For mandrell diamter = 4 x d - 20% For mandrell diamter = 5 x d - 17% For mandrell diamter = 6 x d - 14% For mandrell diamter = 7 x d - 12.5% For mandrell diamter = 8 x d - 11% These are geometrical calculations and are fairly reliable. I am not aware of any attempt made experimentally to verify the results. Please note that this is independent of the bar diameter. Trust this serves the purpose. With regards Indranil Chakrabarti
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