Answer:
The theoretical fracture strength of the brittle material is 11864.5 MPa
Explanation:
Fracture strength is the ability of a material to withstand fracture. It is also known as the breaking stress, it is the stress at which the material fails as a result of fracture. It usually determined from the stress-strain curve after performing a tensile test.
Given that:
Length (L) = 0.15 mm = 0.15 × 10⁻³ m
radius of curvature (r) = 0.002 mm = 0.002 × 10⁻³ m
Stress (s₀) = 1370 MPa = 1370 × 10⁶ Pa
theoretical fracture strength (s) = ?
The theoretical fracture strength is given as:
Substituting values:
s = 11864.5 MPa
The theoretical fracture strength of the brittle material is 11864.5 MPa