Question

A bioengineer reports that the Young’s modulus of articular cartilage is 0.45 MPa and its Poisson’s ratio is 0.46.

(i) Determine the aggregate modulus of the cartilage.

(ii) Explain what is meant by the aggregate modulus and why it is a useful parameter to consider rather than simply determining the Young’s modulus.

Answer 1

Explanation and calculation for aggregate modulus is as shown below.