PSAD Terms

PSAD CELE Terms

Modulus of Toughness

Indicates maximum amount of strain-energy the material can absorb just before it fractures

Modulus of Resilience

Represents the largest amouont of internal strain energy per unit volume the material can absorb without causing any permanent damage

Modulus of Elasticity

Which term describes the ratio of tensile or compressive stress to the corresponding longitudinal strain within the elastic limit of a material

Modulus of Rigidity

Which property represents the ratio of shear stress to the resulting shear strain, indicating the material’s resistance to angular distortion

Homogeneous Material

Materials that have the same physical and mechanical properties throughout their volume. It is a material that has the same composition at any point.

Ductility

Refers to the ability of a material to deform in the plastic range without breaking

Rupture strength

The stress at failure

Ultimate strength

Highest ordinate in a stress-strain diagram

Yield strength

The material will have an appreciable elongation or yielding without corresponding increase in load

Hardness

Measure of material’s ability to resist indentation or penetration

Stiffness

Ability to resist deformation within the linear range. It is the inverse of flexibility

Toughness

Material’s resistance to fracture