113_2009_HW3

113_2009_HW3 - UNIVERSITY OF CALIFORNIA College of...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
UNIVERSITY OF CALIFORNIA College of Engineering Department of Materials Science and Engineering Assigned 09/24/09 Due 10/01/09 Fall 2009 MSE 113 Prof. Ritchie Mechanical Behavior of Materials PROBLEM SET 3 a) Imagine that we deform two cylindrical Nickel alloy samples of the below geometry with original length L . One sample is deformed in a tension test to double its length to 2 L , while the other is deformed in compression to one-half its original length, ½ L . Show that these samples will have equivalent strains in terms of true strain but will have different strains in terms of engineering strain. Problem 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
b) The stress-strain curve for the above sample obeys a plastic constitutive law of the form: ? 11 = ± ∙ ² 11 ³ Compute the strain hardening exponent n for a Nickel alloy in which a true stress of 475 MPa produces a true strain of 0.10; Assume a value of 1000 MPa for K . What is the work per unit volume absorbed in fracturing this sample in tension, if the fracture strain is
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 3

113_2009_HW3 - UNIVERSITY OF CALIFORNIA College of...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online