2C04 Spring 2014 Problem Sets
Problems sets are not due but to be used for practice and self-evaluation. Select problems will be
covered in tutorial sessions.
From Engineering Mechanics of Solids by Popov
Week 1: (review: 2.2, 3.17, 3.33, 4.7, 4.21) 5.1,

Angles alpha and beta are found as:
Adding them together we can find the transformed shear strain:
Then using the double angle formulae we find:
(
)
(
)
Which we then divide by 2 to get
Which we used to derive the formula for Mohrs circle.