The concept of stress is the heart of our subject. It is
the unique way continuum mechanics has for specifying the interaction between one part of a material
body and another (Fung, 1969, p. 41).
Chapter 6
Force, traction, and stress
Photoelastic image of maximum shear stress contours in
grains of model rock. Stress is concentrated at grain
contacts. Inset: photoelastic image of three circular disks
with point contact loads. Reprinted from Gallagher et al.
(1974) with permission from Elsevier.
the unique way continuum mechanics has for specifying the interaction between one part of a material
body and another (Fung, 1969, p. 41).
Chapter 6
Force, traction, and stress
Photoelastic image of maximum shear stress contours in
grains of model rock. Stress is concentrated at grain
contacts. Inset: photoelastic image of three circular disks
with point contact loads. Reprinted from Gallagher et al.
(1974) with permission from Elsevier.