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Photoelastic stress of a protractor

Photoelastic stress of a protractor

C011/6471

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Credit

ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY

Caption

Photoelastic stress patterns of a protractor, viewed using polarised light. The plastic the protractor is made from is displaying coloured interference fringe patterns. Areas of similar colour correspond to regions of similar stress. From these patterns, the direction and magnitude of stresses placed on th eprotractor can be calculated. During photoelastic studies, these calculations can be related to stresses in real designs by using plastic, scaled-down models.

Release details

Model release not required. Property release not required.

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