Efficiency of nanoparticle reinforcement using finite element analysis of titanium alloy mandible plate

Author:

Jindal Prashant1ORCID,Worcester Frank2,Gupta Anand3,Breedon Philip2

Affiliation:

1. University Institute of Engineering and Technology, Panjab University, Chandigarh, India

2. Medical Engineering Design Research Group, Nottingham Trent University, Nottingham, UK

3. Department of Dentistry, Government Medical College & Hospital, Chandigarh, India

Abstract

Nanoparticles in the form nanotubes and nanoplatelets have been compared for von Mises stresses by using them as low-composition reinforcements in titanium alloy–based mandible plate for different compositions and orientations. A finite element model has been designed to reconstruct a fractured human mandible with a titanium alloy mandible plate. A 500 N compressive force was applied on the mandible, and stress distribution across the plate sections was analysed for aligned two-dimensional random and three-dimensional random orientations for both tubes and platelets. Carbon material as graphene has been used for tube and platelet in the form of nanotubes and nanoplatelets, respectively. Using properties of graphene as the filler in titanium alloy plate, for both nanoplatelets and nanotubes, the stresses reduced between 5% and 25% for nanoplatelets and nanotubes graphene–titanium composite plates in comparison to non-reinforced plates, at critically stressed sections. Nanotubes exhibited stress reduction of nearly 23.4% for aligned configurations, while nanoplatelets exhibited stress reduction up to 21.2% for two-dimensional and three-dinemsional random configurations in comparison to non-reinforced titanium plates. Hence, it has been suggested that nanotubes exhibited superior mechanical reinforcement potential beyond that of aligned nanoplatelets, while nanoplatelets provided enhanced mechanical reinforcements for random configurations. Therefore, for biomedical implant applications nanocomposite materials can be designed with the same dimensional form but with lower compositions of filler materials by simply manipulating the appropriate orientations.

Funder

Commonwealth Scholarship Commission

Publisher

SAGE Publications

Subject

Mechanical Engineering,General Medicine

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