Unformatted text preview: – engineering strain curve for the material. Plot the true stress-true strain curve (Please use Excel) Determine Y, K, and n. 2. Determine the true strain at maximum load for a material that follow the Hollomon constitutive equation. 3.- A metal is yielding plastically under the stress state shown in the figure. a) Label the principal axes according to their proper numerical convention. b) What is the yield stress using the Tresca criterion? c) What if the von Mises criterion is used? d) The stress state causes measured strains of ε 1 =0.4, and ε 2 =0.1. What is the value of ε 3 ?...
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This note was uploaded on 02/22/2010 for the course ISE 2204 taught by Professor Rhsturges during the Spring '08 term at Virginia Tech.
- Spring '08