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Estimation of fracture parameters in foam core materials using thermal techniques

Estimation of fracture parameters in foam core materials using thermal techniques
Estimation of fracture parameters in foam core materials using thermal techniques
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
honeycomb sandwich panel, core crush, TSA
California Institute of Technology
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Berggreen, C.
f1a34d7a-9f2c-494a-85a3-0f5ad6968cb2
Boyenval Langlois, C.
74768071-441e-42c4-b51e-43a2bf5ba246
Ravichandran, G.
Dulieu-Barton, J.M.
9e35bebb-2185-4d16-a1bc-bb8f20e06632
Berggreen, C.
f1a34d7a-9f2c-494a-85a3-0f5ad6968cb2
Boyenval Langlois, C.
74768071-441e-42c4-b51e-43a2bf5ba246
Ravichandran, G.

Dulieu-Barton, J.M., Berggreen, C. and Boyenval Langlois, C. (2010) Estimation of fracture parameters in foam core materials using thermal techniques. Ravichandran, G. (ed.) In Proceedings of the 9th International Conference on Sandwich Structures (ICSS-9). California Institute of Technology. 10 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

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

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More information

Published date: June 2010
Venue - Dates: 9th International Conference on Sandwich Structures (ICSS-9), Pasadena, United States, 2010-06-14 - 2010-06-16
Keywords: honeycomb sandwich panel, core crush, TSA
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 175037
URI: http://eprints.soton.ac.uk/id/eprint/175037
PURE UUID: 87577f03-90f6-4834-9754-f257bcaff3f6

Catalogue record

Date deposited: 21 Feb 2011 11:10
Last modified: 14 Mar 2024 02:35

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Contributors

Author: C. Berggreen
Author: C. Boyenval Langlois
Editor: G. Ravichandran

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