The force applied to a unit area of a substance measured in newtons per square metre. Compressive stress crushes the rock; see Bunds (2001) GSA Bull. 113, 7. Tensile stress is a force which tends to pull a rock or soil apart and which may cause fractures and pores to open; see Wiprut and Zoback (2000) Geology 28, 7.
Subjects: Science and Mathematics.