In the construction of a large reactor pressure vessel, a new steel alloy with a plane strain fracture toughness of 55 MPa-m1/2 and a Y value of 1.0. An in-service stress level of 200 MPa has been calculated. What is the length of a surface crack (in mm) that will lead to fracture

Explanation:

From the question we are told that:

Plane strain fracture toughness of

Y value

Stress level of

Generally the equation for length of a surface crack is mathematically given by

Therefore

in mm

answer:

explanation:

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