module 1 md1

• The ability of a material to withstand load without failure

• It is the force or load applied to a material per unit area.

• It is the amount by which a body changes (shorten or lengthen) due to the application of load divided by the original length. It is

  the percent elongation or compression of material due to application of load.

• It is the stress at which the stress-strain curve deviates from a straight line; it is the point on the stress-strain curve at which it begins to deviates from the straight line relationship

• It is the maximum stress at which a material may be subjected without causing permanent deformation

• It is the stress at which there is a marked increase in elongation without an increase in load; it is a point on the stress-strain curve at which a sudden increase in strain without additional load

• It is the highest point on the stress-strain curve; It is the maximum load divided by the original area before straining occurs; It is the stress that would cause failure; Also known as TENSILE STRENGTH

• It is the ratio of the unit stress to unit strain within the PROPRTIONAL LIMIT. It is the

  proportionality constant of a material in tension or compression below the PROPORTIONALITY LIMIT on the stress-strain curve at which

  stress is proportional to strain. E = 30 x 106 psi (STEEL)

• It is the ratio of the unit stress to unit strain with in the PROPORTIONAL

LIMIT in shear. G = 11.5 x 106 psi (STEEL)

It is the ratio of the lateral strain to longitudinal strain of a material subjected to uniform longitudinal stress within the PROPORTIONAL LIMIT. It is the ratio of the contraction to the extension when an element is loaded with a longitudinal tensile force