Modulus of rupture


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the measure of the force necessary to break a given substance across, as a beam, expressed by eighteen times the load which is required to break a bar of one inch square, supported flatwise at two points one foot apart, and loaded in the middle between the points of support.
- Rankine.
Engin.) See under Modulus.

See also: Modulus, Rupture

References in periodicals archive ?
f) Modulus of rupture of fired bodies: The variation of the modulus of rupture for different specimens with the three aforementioned parameters was investigated and the results obtained for 15 minutes soaking time shown in Figure 3f.
30 Note: Number of replicates for each parameter = 5 Total number of replicates = 90 Table 4: Modulus of rupture (MOR) static bending strength of compressed oil palm fronds bio-composite board Static bending MOR (N/[mm.
The modulus of rupture and modulus of elasticity of wood particle composites and pine needle/wood particle composites were higher than the pine needle composites.
The tendency of different soils for hardsetting and crusting as a result of structural collapse was reflected in the modulus of rupture.
100 mm x 100 mm x 500 mm prisms were used for determining the modulus of rupture as well as the ductility.
The mechanical testing was done to determine the modulus of rupture by three-point bend test.
Weyerhaeuser reports in product literature that Lyptus has a hardness rating or modulus of rupture that is "greater than white oak, mahogany, jatoba, red oak, hard maple or beech.
Unfortunately, the modulus of rupture (MR) is not a unique number; the outcome depends on the method of the test.
ICC-ES, which is the United States' leading evaluation service for innovative building materials, components and systems, thoroughly examined MiraTEC trim for code-compliance based on 12 physical property and performance criteria: thickness swelling, water absorption, nail-head pull through, lateral nail resistance, modulus of rupture, hardness, impact, accelerated aging based on percent thickness swell, accelerated aging based on percent strength retention, weatherability of substrate, decay resistance and moisture content.
The testing samples for the modulus of rupture (MOR) and modulus of elasticity (MOE) were prepared by the following equation (1), which is in accordance to the OENORM EN 310:2005.
He notes that evidence from testing shows that friction in rollers can cause a bias in the modulus of rupture obtained at first crack, so rollers covered by the proposed practice might also be applicable for use with ASTM C78, Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading).
100 mm x 100 mm x 500 mm prisms were used for determine the modulus of rupture as well as the ductility.