title: Full deflection profile calculation and Young's modulus optimisation for engineered high performance materials.
abstract: New engineered materials have critical applications in different fields in medicine, engineering and technology but their enhanced mechanical performances are significantly affected by the microstructural design and the sintering process used in their manufacture. This work introduces (i) a methodology for the calculation of the full deflection profile from video recordings of bending tests, (ii) an optimisation algorithm for the characterisation of Young's modulus, (iii) a quantification of the effects of optical distortions and (iv) a comparison with other standard tests. The results presented in this paper show the capabilities of this procedure to evaluate the Young's modulus of highly stiff materials with greater accuracy than previously possible with bending tests, by employing all the available information from the video recording of the tests. This methodology extends to this class of materials the possibility to evaluate both the elastic modulus and the tensile strength with a single mechanical test, without the need for other experimental tools.
authors.affiliation: Applied Modelling and Computation Group, Department of Earth Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom.
authors.forename: A
authors.initials: A
authors.lastname: Farsi
authors.affiliation: Department of Civil and Environmental Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom.
authors.forename: A D
authors.initials: AD
authors.lastname: Pullen
authors.affiliation: Applied Modelling and Computation Group, Department of Earth Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom.
authors.forename: J P
authors.initials: JP
authors.lastname: Latham
authors.affiliation: Department of Engineering and Innovation, The Open University, Walton Hall, Milton Keynes MK7 6AA, United Kingdom.
authors.forename: J
authors.initials: J
authors.lastname: Bowen
authors.affiliation: Johnson Matthey, P.O. Box 1, Belasis Avenue, Billingham, Cleveland, TS23 1LB, United Kingdom.
authors.forename: M
authors.initials: M
authors.lastname: Carlsson
authors.affiliation: Johnson Matthey, P.O. Box 1, Belasis Avenue, Billingham, Cleveland, TS23 1LB, United Kingdom.
authors.forename: E H
authors.initials: EH
authors.lastname: Stitt
authors.affiliation: Johnson Matthey, P.O. Box 1, Belasis Avenue, Billingham, Cleveland, TS23 1LB, United Kingdom.
authors.forename: M
authors.initials: M
authors.lastname: Marigo