Nonlinear elastic waves for evaluation of composite material deterioration

• Autorzy: Lammering R. , Rauter N.
• Języki publikacji: EN

Abstrakty

EN

This work deals with numerical investigations on nonlinear wave propagation in order to detect micro-damage in composite material. For this purpose two models are under consideration. First, a wave guide with linear-elastic material behavior with and without a crack is analyzed. The nonlinearity of this model is due to the strain tensor as well as the contact of the crack surfaces. Secondly, a hyper-elastic waveguide with a nonlinear constitutive description is considered. It is shown, that the nonlinearity gives rise to second harmonic wave modes which which may be considered as an indicator of micro-damage and material deterioration.

Słowa kluczowe

EN

nonlinear elastic waves; composite material; material deterioration; damage

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2016
• Tom: Vol. 64, iss. 4
• Strony: 597--604
• Opis fizyczny: Bibliogr. 7 poz., rys., tab., wykr.

Twórcy

autor

Lammering R.

• Institute of Mechanics Helmut-Schmidt-University/University of the Federal Armed Forces Hamburg Holstenhofweg 85, 22043 Hamburg, Germany

autor

Rauter N.

• Institute of Mechanics Helmut-Schmidt-University/University of the Federal Armed Forces Hamburg Holstenhofweg 85, 22043 Hamburg, Germany

Bibliografia

• 1. Chillara V.K., Lissenden C.J., Nonlinear guided waves in plates: a numerical perspective, Ultrasonics, 54(6): 1553–1558, 2014.
• 2. Holzapfel G., Nonlinear Solid Mechanics – A Continuum Approach for Engineering, John Wiley & Sons, Inc., 2000.
• 3. Murnaghan F.D., Finite Deformation of an Elastic Solid, Dover Publications, New York, 1951.
• 4. Rauter N., Analyse des Einflusses der Werkstoffdegradation auf die nichtlineare Wellenausbreitung in unidirektionalen Compositen – Experimentelle Untersuchung mit numerischer Analyse und Modellbildung, PhD-Thesis, Institute of Mechanics, HelmutSchmidt-University/University of the Federal Armed Forces Hamburg, to appear 2017.
• 5. Rauter N., Lammering R., Development of a hyper-elastic transversely isotropic material law for the simulation of the higher harmonic Lamb wave generation in composite structures, Proc. Int. Workshop Struct. Health Monit., Stanford, CA, USA, Sept. 1–3, 2015, 8 pages, 2015.
• 6. Reese S., Raible T., Wriggers P., Finite element modelling of orthotropic material behaviour in pneumatic membranes, International Journal of Solids and Structures, 38(52): 9525–9544, 2001.
• 7. Ungethum A., Lammering R. ¨ , Damage localization of carbon fibre reinforced plastic plates, Proc. Appl. Math. Mech., 10(1): 19–22, 2010.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).