By Helena Jin, Sanichiro Yoshida, Luciano Lamberti, Ming-Tzer Lin
Advancement of Optical tools in Experimental Mechanics, quantity three of the lawsuits of the 2015SEM Annual Conference& Exposition on Experimental and utilized Mechanics, the 3rd quantity of 9 from the convention, brings jointly contributions to this significant quarter of analysis and engineering. the gathering offers early findings and case reviews on a variety of optical equipment starting from conventional photoelasticity and interferometry to more moderen DIC and DVC concepts, and contains papers within the following normal technical study parts:
Advanced optical interferometry
Developments in photo correlation (Digital &Volumetric )
Full box Methods
Novel Optical tools for Stress/Strain Analysis
Advances in Optical tools
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Extra info for Advancement of Optical Methods in Experimental Mechanics, Volume 3: Proceedings of the 2015 Annual Conference on Experimental and Applied Mechanics
Phys. 3, 72–79 (1952) 4. R. Piggott, Failure processes in the fibre-polymer interphase. Compos. Sci. Technol. 42, 57–76 (1991) 5. A. R. Tyson, Tensile properties of fibre-reinforced metal: copper/tungsten and copper/molybdenum. J. Mech. Phys. Solids 13, 329–350 (1965) 6. M. A. A. J. R. Jones, Measurement of micro stress fields in epoxy matrix around a fibre using phase-stepping automated photoelasticity. Compos. Sci. Technol. 63, 1783–1787 (2003) 7. A. M. J. I. Gonzalez-Chi, Photoelastic evaluation of fiber surface-treatments on the interfacial performance of a polyester fiber/epoxy model composite.
4 Conclusions In this study, the stress and the strain distributions of the single fiber composite was obtained by the photoelasticity and the hybrid method for stress separation. The photoelasticity was carried out with phase-stepping and phase unwrapped technique, and the nodal forces for finite elemental analysis were calculated by the hybrid method for stress separation for the input data of finite element analysis. Using this input data and the finite element model of analysis region, not only the stress but also the strain distributions were obtained.
Data for a representative case of full petal rupture was presented in terms of out-of-plane displacement and velocity. Future work will incorporate known distortions caused by the high-magnification microscope objective, evaluation of strain within the context of a virtual strain gauge, and further correlation of the rupture disc deformation with the time-variant pressure pulse via analytical and computational wave analysis. A. Cooper et al. Acknowledgements These experiments would not have been possible without the contributions of Michael Oliver for the shock tube design, construction and test execution.