Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Linear phased array of piezoelectric transducers for delamination monitoring in a composite laminate using Lamb waves

[+] Author Affiliations
Vivek T. Rathod, Nibir Chakraborty, D. Roy Mahapatra

Indian Institute of Science (India)

Proc. SPIE 7982, Smart Sensor Phenomena, Technology, Networks, and Systems 2011, 798217 (April 15, 2011); doi:10.1117/12.880748
Text Size: A A A
From Conference Volume 7982

  • Smart Sensor Phenomena, Technology, Networks, and Systems 2011
  • Wolfgang Ecke; Kara J. Peters; Theodore E. Matikas
  • San Diego, California, USA | March 06, 2011

abstract

Applications of Linear Phased array concept have been extended from electromagnetic antennae to many other areas due to their capability to direct, magnify and pick up energy in and from desired directions. Apart from radar, optics and medical imaging, one such growing area is in the non-destructive testing of structures. The extensive use of linear array can be attributed to the attenuation of the waves generated in the structure due to inherent damping and loss in the materials and discontinuities. Linear phased arrays are used as actuator in ultrasonic imaging and diagnostics to magnify the energy at a given direction or point in the structure. In the present work the property of amplifying the wave generated in a particular direction is exploited and is studied on a carbon composite structure. Almost all of the existing imaging methods in context of phased array are based on through thickness and bulk wave modes. In the present research we employ Lamb wave which propagates in a doubly bounded media like structural panels. The spreading of energy in a composite laminate is studied in the form of lobe patterns obtained using amplitude of symmetric Lamb wave mode (S0) with a particular orientation of the linear array with fiber direction. The effect of damage in the form of a delamination in a CFRP composite plate on the lobe pattern is analyzed.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Vivek T. Rathod ; Nibir Chakraborty and D. Roy Mahapatra
"Linear phased array of piezoelectric transducers for delamination monitoring in a composite laminate using Lamb waves", Proc. SPIE 7982, Smart Sensor Phenomena, Technology, Networks, and Systems 2011, 798217 (April 15, 2011); doi:10.1117/12.880748; http://dx.doi.org/10.1117/12.880748


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.