Properties Of Biomaterials Flashcards
1
Q
How to calculate strain?
A
Strain = change in length per original length when subjected to load ie deformation/original length
2
Q
What is proportional limit
A
Stress at which material no longer displays elastic behavious, material deforms plastically, permanent strain
3
Q
What is plastic behaviour
A
Happening beyond proportional limit. Stress and strain not proportional. Object does not recover to original dimension when load is released
4
Q
What is ultimate tensile strength
A
Maximum stress material can withstand before failure in tension ie beyond which specimen starts to elongate and there is reduction of cross sectional area
5
Q
What is elastic modulus
A
Stress/strain
Low modulus = less rigid
Less stress for same strain/deformation
