A brittle PMMA specimen that has a KIc of 0.7 MPa·m1/2 fractures at a tensile stress of 50 MPa. Observation of the fracture surface indicates that the fracture started at the specimen edge. Predict the length of the crack that initiated the fracture.

What will be an ideal response?


Physics & Space Science

You might also like to view...

Jupiter is considered a near Earth object

Indicate whether the statement is true or false

Physics & Space Science

Which type of molecules, vital to our life, was found in Murchison and similar carbonaceous chondrites?

A) amino acids B) DNA C) lipids D) sugars E) vitamins

Physics & Space Science

Which of these is not a form of solar energy?

A) wind energy B) fossil fuel energy C) geothermal energy D) hydroelectric power

Physics & Space Science

The quantum mechanical model of the hydrogen atom requires that if the orbital quantum number = 4, there are permitted how many possible substates?

a. 22 c. 8 b. 18 d. 32

Physics & Space Science