Photoelastic Studies of Dynamic Stresses in High Modulus Materials

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Ultra-high-speed photography is needed to record transient stress patterns in models made from high modulus photoelastic materials. A unique photooptical system was developed to obtain simultaneous normal and oblique incidence dynamic stress patterns at rates up to 1,000,000 frames/s. Comparing the photoelastic results with strain gage measurements demonstrated the usefulness of the oblique incidence method for separating principal stresses under dynamic conditions in a circular disc. Dynamic values of the stress-optic coefficient, Young's modulus, and Poisson's ratio were determined from photoelastic and strain gage measurements of elastic waves in a bar. Examples of stress wave propagation in transparent, two-dimensional models were studied using these techniques.
Publication Date: 1966-08-01
DOI: 10.5594/J15240
Link: https://doi.org/10.5594/J15240
Author(s): Paul D. Flynn

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Paul D. Flynn; Photoelastic Studies of Dynamic Stresses in High Modulus Materials, Journal of the SMPTE ( Volume: 75, Issue: 8, August 1966); SMPTE, 1966. Available at https://doi.org/10.5594/J15240

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Paul D. Flynn; Photoelastic Studies of Dynamic Stresses in High Modulus Materials, Journal of the SMPTE ( Volume: 75, Issue: 8, August 1966); SMPTE, 1966. Available at https://doi.org/10.5594/J15240

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Paul D. Flynn; Photoelastic Studies of Dynamic Stresses in High Modulus Materials, Journal of the SMPTE ( Volume: 75, Issue: 8, August 1966); SMPTE, 1966. Available at https://doi.org/10.5594/J15240

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<span class="citation">Paul D. Flynn; <cite>Photoelastic Studies of Dynamic Stresses in High Modulus Materials</cite>, Journal of the SMPTE ( Volume: 75, Issue: 8, August 1966); SMPTE, 1966. Available at <a href="https://doi.org/10.5594/J15240" target="_blank" rel="noopener">https://doi.org/10.5594/J15240</a></span>

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Paul D. Flynn; Photoelastic Studies of Dynamic Stresses in High Modulus Materials, Journal of the SMPTE ( Volume: 75, Issue: 8, August 1966); SMPTE, 1966
doi: 10.5594/J15240
url: https://doi.org/10.5594/J15240

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<li>
Paul D. Flynn; <cite id="bib-10-5594-j15240">Photoelastic Studies of Dynamic Stresses in High Modulus Materials</cite>, Journal of the SMPTE ( Volume: 75, Issue: 8, August 1966); SMPTE, 1966
<span class="doi">10.5594/J15240</span>
</li>