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plastic strain of steel

plastic strain of steel

plastic strain of steel

(OP)
For standard steel grade (S275)can someone explain (in simple terms if possible) how a local plastic strain value of 0.02 (max) may be used when examining stresses in thin plates ( < 10mm)due to explosion type loading. Plastic deformation of the plate is permitted.

RE: plastic strain of steel

Hi,
in standard tensile testing the yield stress is conventionally determined at the strain of 0.02%.
For work hardened explosion loaded sheets, the yield stress will be found much higher, if a specimen of the deformed sheet can be machined into a tensile test specimen and tested.

http://www.welding-advisers.com/

RE: plastic strain of steel

Aircraft yield is .02% offset, but for those of us in "slower" fields in't .2%. <g>

RE: plastic strain of steel

harryj,

Can you re-state your question?  I did not really understand what information you need.

Goahead and Metalguy,

Just as a clarification, harryj wrote 0.02 plastic strain, which is 2% strain/elongation.

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