Use of nondegeneracy in norminally axisymmetric structures for fault detection with application to cylindrical geometries.
A novel technique is proposed for the detection of localized flaws in otherwise axisymmetric structures. The technique is based on the split-mode phenomena that occurs when the degenerate vibratory modes of the axisymmetric structure become non-degenerate due to the flaw with altered mode shapes and shifted natural frequencies. A basic theoretical motivation is offered and computational and experimental studies on cylindrical structures are reported that verify the premises of the proposed methodology and provide an assessment of its specificity and sensitivity under confounding conditions, such as out-of-roundness.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- EE
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 942512
- Report Number(s):
- ANL/ET/JA-32191; JSVIAG; TRN: US200916%%512
- Journal Information:
- J. Sound Vib., Vol. 230, Issue 4 ; Mar. 2000; ISSN 0022-460X
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
Axisymmetric guided wave scattering by cracks in welded steel pipes
Bound states with orbital angular momentum in the continuum of cylindrical non-axisymmetric waveguide
High accuracy electromagnetic field solvers for cylindrical waveguides and axisymmetric structures using the finite element method
Journal Article
·
Sat Nov 01 00:00:00 EST 1997
· Journal of Pressure Vessel Technology
·
OSTI ID:942512
Bound states with orbital angular momentum in the continuum of cylindrical non-axisymmetric waveguide
Journal Article
·
Sat Sep 15 00:00:00 EDT 2018
· Annals of Physics
·
OSTI ID:942512
High accuracy electromagnetic field solvers for cylindrical waveguides and axisymmetric structures using the finite element method
Thesis/Dissertation
·
Wed Dec 01 00:00:00 EST 1993
·
OSTI ID:942512