|
| |
|
|
Dispersion curves in a thick orthotropic plate
Hora, Petr
A detailed expressions for the dispersion equations of an infinite orthotropic plate is considered.Dispersion curves are presented for the unidirectional composite.The results will be used to understand and to expand the use of acousto-ultrasonic testingin nondestructive evaluation.
|
|
| |
|
|
The preprocessor for system LISA
Hora, Petr ; Šiňor, M.
In this contribution we pay attention to the propagation of the stress waves in an arbitrary complex inhomogeneous media. For the system of elastodynamic wave equations we have adopted the method of solution based on the local interaction simulation approach (LISA) and the sharp interface model (SIM) introduced for 1D, 2D and 3D cases in [1-3].
|
|
|
Determination of elastic moduli by the resonant ultrasound spectroscopy method
Kolman, Radek ; Plešek, Jiří ; Landa, Michal
An optimization method for the determination of elastic moduli by resonant ultrasound spectrocopy (RUS) was proposed. All components of the fourth-order tensor of elastic moduli for a general anisotropic material is determined from the knowledge of the resonance responce(spectrum) of the mechanical system. This spectrum is obtained from experimental measurements, using the RUS method on the prismatic specimen. For the iterative computation of elastic moduli an identification algorithm based on the direct iteration method is used. Spatial discretisation is performed by the finite element method.
|
|
|
The propagation of the stress waves in an inhomogeneous media.
Hora, Petr ; Šiňor, M.
In this contribution we pay attention to the propagation of the stress waves in an arbitrary complex inhomogeneous media. For the system of elastodynamic wave equations we have adopted the method of solution based on the local interaction simulation approach (LISA) and the sharp interface model (SIM).The implementation of LISA/SIM in 2D and 3D to computer codes is done in the C programming language. Preprocessor is done in the programming language Python with graphics library wxPython/wxWindows.
|
|
| |
|
| |
|
| |
|
| |
guest ::
