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A T‐shaped specimen for the direct characterization of orthotropic materials
Author(s) -
Grédiac M.,
Pierron F.
Publication year - 1998
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/(sici)1097-0207(19980130)41:2<293::aid-nme284>3.0.co;2-y
Subject(s) - orthotropic material , stiffness , characterization (materials science) , kinematics , virtual work , work (physics) , structural engineering , finite element method , computer science , geometry , mechanical engineering , engineering , materials science , mathematics , physics , classical mechanics , nanotechnology
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. © 1998 John Wiley & Sons, Ltd.