12. A structural component is fabricated from an alloy that has a plane strain fracture toughness of It has been determined that
this component fails at a stress of 300 MPa when the maximum length of a surface crack is 0.95 mm. What is the maximum allowable surface crack length (in mm) without fracture for this same component exposed to a stress of 300 MPa and made from another alloy with a plane-strain fracture toughness of 35 MPa m (31.9 ksi in. ). 40 MPa m (36.4 ksi in. ). 45 MPa m. 57.5 MPa m
1 answer:
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Answer:
percentage change in volume = 0.00285 %
Explanation:
given data
bulk modulus = 3.5 × N/m²
bulk stress = N/m²
solution
we will apply here bulk modulus formula that is
bulk modulus = ...............1
put here value and we get
3.5 × =
solve it we get
bulk strain = 2.8571 ×
and
bulk strain =
so that percentage change in volume is = 2.8571 × × 100
percentage change in volume = 0.00285 %