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Proceedings Paper

Impact force identification on isotropic and composite panels
Author(s): Ivan Bartoli; Salvatore Salamone; Marzia Mezzanotte; Francesco Lanza di Scalea; Hyonny Kim; Jennifer Rhymer
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Paper Abstract

Many studies have demonstrated for composite structures such as aerospace components the peak force of impacts can be correlated to damage. Hence, techniques able to estimate the impact forces are being investigated. The present paper deals specifically with the inverse problem of identification of impact forces on isotropic and composite panels given the dynamic response of Macro Fiber Composite (MFC) sensors bonded to the components. First a Semi Analytical Finite Element (SAFE) approach is employed to predict the frequency response and time history response of the MFC sensors assuming an impulse force excitation. Subsequently, the impact force is estimated updating the force time history assumed in the SAFE by minimizing the difference between numerical and experimental signals from MFC sensors. Such procedure has been used in isotropic and composite plates. Impact forces generated using impact hammers and different ice projectiles launched with gas cannon on panels have been identified.

Paper Details

Date Published: 9 April 2010
PDF: 12 pages
Proc. SPIE 7650, Health Monitoring of Structural and Biological Systems 2010, 765007 (9 April 2010); doi: 10.1117/12.847041
Show Author Affiliations
Ivan Bartoli, Univ. of California, San Diego (United States)
Salvatore Salamone, Univ. of California, San Diego (United States)
Marzia Mezzanotte, Univ. degli Studi di Palermo (Italy)
Francesco Lanza di Scalea, Univ. of California, San Diego (United States)
Hyonny Kim, Univ. of California, San Diego (United States)
Jennifer Rhymer, Univ. of California, San Diego (United States)


Published in SPIE Proceedings Vol. 7650:
Health Monitoring of Structural and Biological Systems 2010
Tribikram Kundu, Editor(s)

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