An elastic modulus , or modulus of elasticity , is the mathematical description of an object or substance 's tendency to be deformed elastically -LRB- i.e. , non-permanently -RRB- when a force is applied to it .

An elastic modulus , or modulus of elasticity , is the mathematical description of an object or substance 's tendency to be deformed elastically -LRB- i.e. non-permanently -RRB- when a force is applied to it .
