During a Modulus of Rupture (MOR) experiment similar the one performed in class,

Question

During a Modulus of Rupture (MOR) experiment similar the one performed in class, two identical samples are tested. Both samples are tested to failure. The force was applied at different lengths for each sample. How will the resulting Mor values compare?

1, MOR sample A is greater than MOR for sample B

2, MOR sample A is equal to the MOR for sample B

During a Modulus of Rupture (MOR) experiment similar the one performed in class, two identical samples are tested Both samples are tested to failure The force was applied at different lengths for each sample. How will the resulting MOR values compare?

Explanation / Answer

Modulus of Rupture is given by :

M = (3 X P X L)/(2 X b X d^2)

M = Modulus Of Rupture
P = Breaking Load
L = Distance Between Knife Edges on which the Sample is Supported
b = Average Specimen Breadth
d = Average Specimen Depth

Considering this formula in mind as L is greater for sample B so MB > MA

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