O Question 5 Q14 which of the following statements about fracture toughness is wrong? (Multiple Answers) 5 pts (d) Fracture toughness can be measured by the maximum force during fracture (c)

Fracture toughness is a measure of the sensitivity of the material to the presence of defects or flaws, it is not applicable(relevant) to surface crack O (b) Fracture toughness represents the 01% proof stress of the material O(a) The fracture toughness of a material is the 'ability of the material to resist the very slow propagation of cracks. O (e) Fracture toughness of metals normally decrease at lower temperature