Abstract
The aim of this paper is to present some examples of the use of laser speckle method for the study of composite and polymer mechanical behaviour. A specific mechanical device has been designed in order to realise in-situ singly exposed speckle photographs. It is thus possible to obtain quite rapidly and easily “ in-situ ” displacement measurements, that is to say on the tensile testing machine, and with a good accuracy. This method has been applied to check and improve mechanical constitutive laws of structural composite materials. It has also been applied to validate new mechanical tests, for example shear tests, by verifying the uniformity of strain fields in the specimens. Moreover, this method allowed us to characterise strain fields around crack tips in polymers.
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© 2000 Kluwer Academic Publishers
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Lagattu, F., Brillaud, J., Lafarie-Frenot, M.C. (2000). Progress in Mechanics of Materials by Using Laser Speckle Method. In: Lagarde, A. (eds) IUTAM Symposium on Advanced Optical Methods and Applications in Solid Mechanics. Solid Mechanics and its Applications, vol 82. Springer, Dordrecht. https://doi.org/10.1007/0-306-46948-0_65
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DOI: https://doi.org/10.1007/0-306-46948-0_65
Publisher Name: Springer, Dordrecht
Print ISBN: 978-0-7923-6604-1
Online ISBN: 978-0-306-46948-0
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