Grédiac, M. and Pierron, F.
A T-shaped specimen for the direct characterization of orthotropic materials
International Journal for Numerical Methods in Engineering, 41, (2), . (doi:10.1002/(SICI)1097-0207(19980130)41:2<293::AID-NME284>3.0.CO;2-Y).
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This paper deals with the definition of a new test specimen geometry for the direct measurement of the four in-plane stiffness components of orthotropic materials. The technique is based on a suitable use of the principle of virtual work. The choice and application of four different types of virtual kinematic fields leads to a system of equations that links the our stiffness components to the global force applied and geometry parameters. A numerical simulation based on finite lement modelling is used to validate the approach. The stability of the process is also demonstrated.
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