Determination of impact events on a plate-like composite structure

Composite materials have been increasingly used in aircraft structures. However, these composite structures are susceptible to damage from external low-velocity impacts. In this paper, an impact identification algorithm is proposed to estimate the impact location and force time history simultaneously. A localisation method based on basis vectors is proposed, and the impact force time history is reconstructed by simplified transfer functions. The basis vector stands for the relationship between the impact location and the sensor signals, and the transfer function shows the relationship of the sensor signal and the force time history. An experiment is conducted on a flat glass fibre-epoxy matrix composite plate to verify the developed algorithm using only four sensors. The soft impactor and hard impactor are two typical impactors for impact events; therefore, the impact experiment is performed by the rubber and the steel impactors, respectively. The experimental results indicate that the proposed algorithm is feasible for the identification of impact events on plate-like composite structures.

[1]  Keith Worden,et al.  Impact Damage Detection in Aircraft Composites Using Knowledge-based Reasoning , 2008 .

[2]  Stefan Hurlebaus,et al.  IDENTIFICATION OF THE IMPACT LOCATION ON A PLATE USING WAVELETS , 1998 .

[3]  Jiande Wu,et al.  Base Vector Learning Mechanism for Fuzzy Model , 2010, 2010 International Conference on Digital Manufacturing & Automation.

[4]  H. Lamb.  On waves in an elastic plate , 1917 .

[5]  Stefan Hurlebaus,et al.  Determination of the impact force on a plate by piezoelectric film sensors , 1999 .

[6]  E. Shin.  Real-time recovery of impact force based on finite element analysis , 2000 .

[7]  Ken-Huang Lin,et al.  SPC05-5: A Base Vector Algorithm for Location Determination Based on SSSD Measurements in Wireless Cellular Communications , 2006, IEEE Globecom 2006.

[8]  Dong Liang,et al.  Distributed coordination algorithm for impact location of preciseness and real-time on composite structures , 2013 .

[9]  A. Tobias,et al.  Acoustic-emission source location in two dimensions by an array of three sensors , 1976 .

[10]  C. T. Sun,et al.  Determining transverse impact force on a composite laminate by signal deconvolution , 1989 .

[11]  A. M. Waas,et al.  Progressive failure analysis for the interaction of interlaminar and intralaminar failure modes in composite structures with an initial delamination , 2013, The Aeronautical Journal (1968).

[12]  Enboa Wu,et al.  On the Inverse Problem of Rectangular Plates Subjected to Elastic Impact, Part I: Method Development and Numerical Verification , 1995 .

[13]  Lei Lei Jiang,et al.  The Fault Diagnosis Algorithm of PLS-LSSVM Process Based on Base Vector Space , 2013 .

[14]  Fuh-Gwo Yuan,et al.  Impact source identification in finite isotropic plates using a time-reversal method: theoretical study , 2010 .

[15]  John Alexander Steel,et al.  A new method for waveform analysis for estimating AE wave arrival times using wavelet decomposition , 2004 .

[16]  Yu Wang,et al.  A time reversal focusing based impact imaging method and its evaluation on complex composite structures , 2011 .

[17]  Hermann Ney,et al.  Basis vector orthogonalization for an improved kernel gradient matching pursuit method , 2012, 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP).

[18]  Jonghyun Park,et al.  Monitoring Impact Events Using a System-Identification Method , 2009 .

[19]  Huan Xin Cheng.  Composite Material Application and Development in Pressure Vessels , 2011 .

[20]  J. F. Doyle,et al.  Impact force location in frame structures , 1996 .

[21]  Constantin Ciocanel,et al.  Impact detection for smart automotive damage mitigation systems , 2004 .

[22]  Shenfang Yuan,et al.  Two-dimensional near-field multiple signal classification algorithm–based impact localization , 2015 .

[23]  Keith Worden,et al.  Impact Location and Quantification on a Composite Panel using Neural Networks and a Genetic Algorithm , 2000 .

[24]  Enboa Wu,et al.  Identification of impact forces at multiple locations on laminated plates , 1994 .

[25]  M. J. L. van Tooren,et al.  Composite materials, composite structures, composite systems , 2011 .

[26]  Z. Sharif-Khodaei,et al.  Determination of impact location on composite stiffened panels , 2012 .

[27]  Stefan Hallström,et al.  Failure Mechanisms and Modelling of Impact Damage in Sandwich Beams - A 2D Approach: Part I - Experimental Investigation , 2003 .

[28]  K. Chandrashekhara,et al.  Prediction of Impact Contact Forces of Composite Plates Using Fiber Optic Sensors and Neural Networks , 2000 .

[29]  Vassili Toropov,et al.  The use of topology optimisation in the conceptual design of next generation lattice composite aircraft fuselage structures , 2013, The Aeronautical Journal (1968).

[30]  Yishou Wang,et al.  Impact energy identification on a composite plate using basis vectors , 2015 .

[31]  Keith Worden,et al.  An automatic impact monitor for a composite panel employing smart sensor technology , 2005 .

[32]  Fabrizio Ricci,et al.  Dynamic based damage detection in composite structures , 2009, Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[33]  Samik Das,et al.  Real-time prediction of impact-induced damage for composite structures based on failure analysis and efficient database methods , 2012, Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[34]  Jonghyun Park,et al.  System identification method for monitoring impact events , 2005, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[35]  Hisao Fukunaga,et al.  An efficient approach for identifying impact force using embedded piezoelectric sensors , 2007 .

[36]  Fu-Kuo Chang.  Effect of Nose Shape and Mass of the Impactor on Impact Damage of Laminated Composites. , 1994 .

[37]  Hoon Sohn,et al.  Overview of Piezoelectric Impedance-Based Health Monitoring and Path Forward , 2003 .