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I have three column data that has time-displacement-force from 1D tensile/compression test. Now I would like to get the standard mechanical properties of the material, like Young modulus, yield stress/strain, strain hardening/softening exponent, Fracture toughness, work done...

Is there algorithms/libraries available that will do it for me or do I have to code them myself?

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I don't know of any software, but at least for the Young's modulus, yield stress and work it will be very easy. I doubt that you can get the fracture toughness from these data. – yohBS Mar 29 '12 at 7:41
Yes, its rather simple exercise, but don't want to invent the wheel again. I know that others have the same problem and the solution is usually to buy 5 000$ software that works like a black box. There might be some algorithms written already and open source. – Juha Mar 29 '12 at 11:00
In that case, send my your credit card number and I'll do it for 500$! – yohBS Mar 29 '12 at 11:43
This could be arreangeable, but you have to make it a product (ebay, apple/google store, amazon) and well commented source code included ... 500 is rather a small amount, the validation part is really tedious (and this is one of the main requirements): finding good reference data for different materials and comparing the calculated values to them. You could apply money for this as google's summerOfCode. – Juha Mar 29 '12 at 11:52

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