Week Three Review

Vocabulary Terms

You should be able to define the following terms.
 
coaxial strain non-coaxial strain plane strain finite-stretching axes
internal rotation (a) minimum finite stretch S3 maximum finite stretch S1  principal strain axes
quadratic elongation l reciprocal quadratic elongation l' zero angular shear lines of no finite strain
angle qd Simple shear Pure Shear  gamma g

Concepts

You should be able to give short answers to the following questions:

1.) How does angular shear change during progressive deformation in figure 2.39?

2.) Draw the strain ellipse on a copy of figure 2.49D

3.) Determine the orientation of the lines of no finite stretch for figure 2.49D

4.) What types of strain history are possible for a line during progressive simple shear? What are these different histories dependent upon?

5.) What types of geological features can we expect to see in an outcrop that underwent one event of coaxial deformation only?

6.) What types of geological features can we expect to see in an outcrop that underwent one event of non-coaxial deformation only?

7.) Identify the components of the Mohr Circle for Finite Strain. Plot a Mohr Circle for Finite Strain. Read pertinent data off of a Mohr Circle for Finite Strain.

8.) Where would the ellipses in figure 2.57 plot in the strain field diagram of figure 2.58?