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Investigation of Microcrack Growth in [0/90]s Composite Laminates

[+] Author Affiliations
Melody A. Verges, Paul J. Schilling, Paul D. Herrington, Arun K. Tatiparthi

University of New Orleans, New Orleans, LA

Paper No. IMECE2003-43720, pp. 171-175; 5 pages
doi:10.1115/IMECE2003-43720
From:
  • ASME 2003 International Mechanical Engineering Congress and Exposition
  • Recent Advances in Mechanics of Solids and Structures
  • Washington, DC, USA, November 15–21, 2003
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-3726-2 | eISBN: 0-7918-4663-6, 0-7918-4664-4, 0-7918-4665-2
  • Copyright © 2003 by ASME

abstract

Techniques such as optical microscopy and X-radiography have provided useful information regarding damage in composite laminates, particular in therms of microcracking behavior in individual plies. This focuses on the investigation of microcracking and damage evolution in loaded composite laminates via X-ray computed microtomography. The main advantage in the use of such a technique is that damage within the composite can be assessed in three-dimensions without destruction of the composite. In this work, IM7/977–2, IM7/5555, and IM7/5276-1 coupons were uniaxially tested in a tensile substage, Graphs that convey microcracking density information as a function of applied load were created for [0/90/90/0] laminates. The three dimensional geometry and connectivity of microcracks and other damage in these samples were investigated through microtomographic reconstruction.

Copyright © 2003 by ASME

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