Civil and Environmental Engineering 2202A/B Lecture 10: Lecture 10 Notes Part 2
27 Nov 2018
School
Department
Professor
Document Summary
Elongation on three different strain (from strain guages) Chose the biggest maximum of the three planes. When a material is subjected to principal in-plane strains of the same sign, the largest circle has a radius of. This value represents the absolute maximum shear strain for the material. It is larger than the maximum in-plane shear strain. For a material subjected to principal in-plane strains of opposite signs. General 3-d state of strain at a point can be represented by an element oriented so that only three principal strains act on it. From this orientation, the orientation of the element representing the absolute maximum. Lecture notes page 1 shear strain can be obtained by rotating the element 45o about the axis defining the direction of int. The absolute maximum shear strain will be larger than the maximum in-plane shear strain whenever the in-plane principal strains have the same sign.
