Fracture Mechanics 4 theory Flashcards
1
Q
What is the resistance to fracture of a material known as
A
Fracture toughness
2
Q
What does fracture toughness depend on?
A
Temperature, environment, loading rate, the composition of the material and its microstructure.
3
Q
What is the Charpy Impact test used for?
A
To quantify the relative toughness (the amount of energy required to fracture a notched specimen) of a material under loading. Still widely used as it is simple and inexpensive.
4
Q
What are the most widely used test configurations?
A
The single edge notch bend (SENB or three point bend), and the compact tension (CT) specimens
5
Q
What are the advantages and disadvantages of the compact specimen?
A
Uses less material but more expensive to machine and more complex to test compared with the SENB specimen.
