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Definition of Mohr envelope in US English:

Mohr envelope

noun

Engineering

  • The bounding line of a series of Mohr circles drawn at different containing pressures for the stress on a body at the level at which it slips or fractures, the point at which a circle touches the line giving the plane along which slippage or fracturing occurs at a particular containing pressure.

Origin

1950s; earliest use found in Bulletin of the Geological Society of America.