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Cards In This Set
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Simply the ratio of the change in length caused by the external force, to the original length.
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Strain
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A.k.a. unit deformation
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Strain
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A force exerted when one body presses on. pulls on, pushes against, or tends to compress or twist another body.
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Stress
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Commonly expressed in force per unit area
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Stress
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Deals with the relations between externally applied loads and their internal effects on bodies.
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Stress
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Load applied is normal (perpendicular) to the resisting area.
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Normal stress / axial stress
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Forces applied is parallel to the resisting area.
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Shear stress
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Contact/pressure b/n two separate bodies.
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Bearing stress
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Straight line
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Proportional limit
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Stress is proportional to strain Hookes Law, upper limit on the usable stress a material can carry also a maximum stress to which the material may be subjected.
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Proportional limit
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The stress beyond which the material will not return to its original shape when unloaded but will retain a permanent deformation called permanent set
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Elastic limit
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Elongation; permanent set; permanent deformation
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Yield point
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There is an appreciable elongation or yielding of the material w/out any corresponding increase of load; indeed the load may actually decreased while the yielding occurs; this is peculiar to structural steel
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Yield point
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Associated with yield point for materials which do not have a well-defined yield point
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Yield strength
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Determined by offset method
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Yield strength
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