Ares, D.

Kok, Rutger

Martinez-Hergueta, Francisca

Petrinic, N.

Ridruejo, Alvaro

English

Edinburgh Research Explorer

     Edinburgh Research Explorer                                      Virtual testing framework for accelerated development ofcomposite structures for impact applications: Experiments andsimulationsCitation for published version:Martinez-Hergueta, F, Kok, R, Ares, D, Ridruejo, A & Petrinic, N 2019, 'Virtual testing framework foraccelerated development of composite structures for impact applications: Experiments and simulations',The 4th China International Congress on Composite Materials, Zuhai, China, 28/11/19.Link:Link to publication record in Edinburgh Research ExplorerGeneral rightsCopyright for the publications made accessible via the Edinburgh Research Explorer is retained by the author(s)and / or other copyright owners and it is a condition of accessing these publications that users recognise andabide by the legal requirements associated with these rights.Take down policyThe University of Edinburgh has made every reasonable effort to ensure that Edinburgh Research Explorercontent complies with UK legislation. If you believe that the public display of this file breaches copyright pleasecontact openaccess@ed.ac.uk providing details, and we will remove access to the work immediately andinvestigate your claim.Download date: 27. Oct. 2022The 4th China International Congress on Composite Materials, CCCM-4 November 28 - 30, 2019, Zhuhai, Guangdong, China    Virtual testing framework for accelerated development of composite structures for impact applications: Experiments and simulations  *Francisca Martínez-Hergueta1, Rutger Kok1, D. Ares2, A. Ridruejo2, Nik Petrinic 3  1 School of Engineering, University of Edinburgh, UK (Francisca.mhergueta@ed.ac.uk) 2 Technical University of Madrid, Spain  3 Department of Engineering Science, University of Oxford, UK  Composite materials are widely used for aeronautical applications due to their specific stiffness and strength, however, they present a very brittle response against impact [1]. The development of numerical models that can accurately predict the physics involved during the impact event is critical to accelerate the design of composite structures. The present research is focused on the development of a validated numerical framework able to capture the non-linear response and strain rate dependency of the composite to predict the final energy absorption capacity. Special emphasis has been given to the experimental and numerical characterisation of composites subjected to high strain rates, including the technical challenges of the dynamic experimental techniques, the complex micromechanical response and the implementation of constitutive laws to predict the catastrophic failure of structural components against impact. Finally, the implementation of this approach for aerospace applications will be explored, including quasi-static, dynamics and low velocity impact testing [2].     Fig. 1 (a) Experimental engineering shear strain for 13% applied deformation for a 8HS S2/Epoxy composite at quasi-static and high  st r ain  rate (900 s-1) and (b) numerical correlation. (c) Correlation between the representative shear engineering stress vs engineering strain curves.    References  [1]  Hou, J.P, Petrinic, N., Ruiz, C., Hallett, R. Comp. Sci. Tech. 60 (2000) 273–281. [2]  Martinez Hergueta, F., Ares, D., Petrinic, N., Comp. Struct., 210, (2019) 840–857. 

Virtual testing framework for accelerated development of composite structures for impact applications: Experiments and simulations

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Virtual testing framework for accelerated development of composite structures for impact applications: Experiments and simulations

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