Modulus of Rupture

Breaking strength in a non-ductile solid as measured by bending.

Alternate terms are flexural strength and torsional strength.

The modulus of rupture is the maximum surface stress in a bent beam at the instant of failure. It is always larger than the tensile strength by a factor of about 1.3.

The Modulus of Rupture strictly only applies to brittle materials.

See also: Flexural Strength.

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Subjects: Mechanical Engineering