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Coloured light interference patterns on plastic

Coloured light interference patterns on plastic

H150/0005

Rights Managed

45.2 MB (45.0 MB compressed)

4869 x 3245 pixels

41.1 x 27.4 cm ⏐ 16.2 x 10.8 in (300dpi)

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Credit

SHEILA TERRY / SCIENCE PHOTO LIBRARY SHEILA TERRY / SCIENCE PHOTO LIBRARY

Caption

Coloured light interference patterns on a plastic ruler & shallow dish (manufactured by an injection moulding process), used to illustrate the principal of photo-elasticity as applied to stress distribution in objects under complex systems of loading. The object is photographed using cross polarised white light; the pattern of colours provides an isochromatic contour map of stress conditions throughout the object (isochromatic areas have the same colour & indicate similar conditions of stress). Transparent plastic models with stress loads proportional to real objects are made to determine stress distributions.

Release details

Model release not required. Property release not required.

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