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Investigating plastic behaviour in immature bones


   Department of Mechanical Engineering

   Applications accepted all year round  Self-Funded PhD Students Only

About the Project

There are many differences in mechanical properties between immature and adult bones. While adult bones have been studied extensively, particularly in relation to non-healthy ageing and the risk of fracture, there has been a lack of study on immature or young bones and their mechanical properties. It is known that young bones fracture in a different manner compared to the brittle fracture that is frequently observed in adult bones. Young bones also exhibit plastic deformation under certain loading conditions. However, it is not understood if such observation is due to micro-fractures in the mineralised bone or plastic deformation of the material. This makes it difficult to understand the mechanical properties of normal immature bones, and also any pathological changes associated with childhood musculoskeletal diseases.

The aim of this project is therefore to develop an approach in order to gain a better understanding of the mechanical behaviour of immature bone, particularly related to plastic deformation. We will load immature animal bones using test rigs under multiple loading conditions and monitor surface strains using digital image correlation. Further indention will then be carried out on specimens in order to test for local plastic behaviour. The information will be combined to generate a computer model for immature bones using finite element analysis.

This is a self-funded research project. We require applicants to have either an undergraduate honours degree (2:1) or MSc (Merit or Distinction) in a relevant science or engineering subject from a reputable institution.


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