Paper Title:
Flexural Testing of Composite Sandwich Structures with Digital Speckle Photogrammetry
  Abstract

Composite sandwich structures are finding increasingly widespread use in fields ranging from aerospace and wind turbines to sports applications such as skis and surfboards. The high specific stiffness that composite sandwich structures can provide lends them well to these applications. However, the operational environment of these structures is frequently aggressive and often results in damage during service. The extent and effect of damage incurred is an important factor in the design and maintenance of composite sandwich structures. Failure of an individual component can be catastrophic for the rest of the structure. The purpose of this investigation was, firstly, to ascertain whether DSP was a viable technique for determining strain fields within composite sandwich structures. Secondly, to determine whether four point flexure would give rise to pure flexure between the central rollers, and if not, to understand what load conditions were present. This investigation was also carried out with a view to extend the investigation into the effect of defects on composite sandwich structures manufactured by RIFT. The grounds for selection of composite sandwich structures normally lie in their flexural performance. Reliable and accurate quantitative testing methods for evaluating the flexural performance of sandwich panels are needed if composite sandwich structures are to be used safely and effectively. In addition, methods to determine the effect of damage and defects on flexural behaviour of sandwich structures is particularly important for designing the repair and maintenance regimes of composite sandwich components.

  Info
Periodical
Edited by
Patrick Sean Keogh
Pages
135-144
DOI
10.4028/www.scientific.net/AMM.5-6.135
Citation
A. D. Fergusson, A. Puri, A. Morris, J. P. Dear, "Flexural Testing of Composite Sandwich Structures with Digital Speckle Photogrammetry ", Applied Mechanics and Materials, Vols. 5-6, pp. 135-144, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Marcin Gołąbczak, Andrzej Konstantynowicz
Abstract:Widely used in mechanics is the method of surface parameters investigation by indentation of some kind of penetrator into test surfaces and...
641
Authors: Bing Qiang Yu, Li Po Yang
III. Digital Manufacturing System and Management
Abstract:A new strip shaper is developed to avoid the scratch of the strip surface due to different thermal expansion of the traditional detection...
529
Authors: Sheng Wen Fan, Ze Ting Wang
Chapter 17: Manufacturing Process Planning and Scheduling
Abstract:A 60kV/6kW full-digital high voltage power supply for electronic beam welder (EBW) is designed. The power is composed of DSP, CPLD, IPM etc....
4306
Authors: Yu Duo Wang, Zhen Gang Li
Chapter 8: Signal Processing
Abstract:Rail gas press welding is a sophisticated process which involves physics, chemistry, heat transfer, material metallurgy and hydromechanics...
1480
Authors: Zhi Fang, Shao Hua He
Low Carbon, Energy Saving Design and Practice
Abstract:The mix proportion of DSP for the sake of rock anchor grouting has been studied, and the effects of water-binder ratio, volume of nanometer...
946