Estimation of fracture parameters in foam core materials using thermal techniques

Dulieu-Barton, J.M., Berggreen, C. and Boyenval Langlois, C. (2010) Estimation of fracture parameters in foam core materials using thermal techniques. In, Ravichandran, G. (eds.) Proceedings of the 9th International Conference on Sandwich Structures (ICSS-9). 9th International Conference on Sandwich Structures (ICSS-9) Pasadena, US, California Institute of Technology.


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The paper presents some initial work on establishing the stress state at a crack tip in PVC foam material using a non-contact infra-red technique known as thermoelastic stress analysis (TSA). A parametric study of the factors that may affect the thermoelastic response of the foam material is described. A mode I simulated crack in the form of a machined notch is used to establish the feasibility of the TSA approach to derive stress intensity factors for the foam material. The overall goal is to demonstrate that thermal techniques have the ability to provide deeper insight into the behaviour of the cracks in foam and the potential to determine stress intensity factors

Item Type: Book Section
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Keywords: honeycomb sandwich panel, core crush, TSA
Subjects: Q Science > QC Physics
T Technology > TJ Mechanical engineering and machinery
Divisions : University Structure - Pre August 2011 > School of Engineering Sciences > Fluid-Structure Interactions
ePrint ID: 175037
Accepted Date and Publication Date:
June 2010Published
Date Deposited: 21 Feb 2011 11:10
Last Modified: 31 Mar 2016 13:33

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