09.1_stress_types

Tensional stress where dominant stresses are pulling away from the object, compressional stress where dominant stress is pushing in towards the object, and shear, where part of the object is pushed and part of the object is pulled (stresses in opposite directions)

Types of stress. Clockwise from top left: tensional stress, compressional stress, and shear stress.

http://earthquake.usgs.gov/learn/glossary/images/stress_types.gif

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