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Theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation is 16760 Mpa
б₀(stress)=1060Mpa
radius of the curvature =0.004 mm
surface of crack =0..25 mm
бmax=2б₀√a/s
=2*1060*√0.25/0.004
бT.F.S =16760 Mpa
According to the type of applied loading, such as tensile, compressive, or bending, a material's fracture strength—or ability to withstand failure—is explicitly determined. According to the Griffith equation, beta alumina's fracture strength F is correlated with the stress required to propagate a microstructural fault. σF=(2EγiπC)1/2 where C is the half-length (radius) of the strength-controlling fault and E stands for Young's modulus, I for fracture surface energy, and I for the fracture energy. The stress at the site of rupture is expressed as the fracture strength, also known as the breaking strength. The stress value at which the test specimen splits into two different pieces is known as the tensile strength test stress value. The cross-sectional area at the fracture divided by the load at the fracture represents the genuine fracture stress.
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