Defining Stress in a Solid

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Stanford Rock Physics Laboratory - Gary MavkoStress and strain Analysis 30Defining Stress in a SolidThese forces that we must apply to the cuts areexactly the forces that act within the general these forces depend on: the position within the Solid the orientation of the surfaceImagine applyingexternal forces to a an imaginary cut inside,and apply a set of forcescarefully chosen so that therest of the Solid does not feelthe forces will depend onthe position and orientation ofthe Rock Physics Laboratory - Gary MavkoStress and strain Analysis 31 When we push on something, we apply forcesto a surface. When we break something, we create break along surfaces. When we repair something, we reattach or are surfaces important?

Stress and Strain Analysis 30 Defining Stress in a Solid These forces that we must apply to the cuts are exactly the forces that act within the original solid. In general these forces depend on: • the position within the solid • the orientation of the surface Imagine applying

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