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Engineering the Future |
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MATERIALS ENGINEERING | |||
COMPONENT
FAILURE MUSEUM |
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The main sections of the museum are listed below; Metal Fatigue Tools of the trade, some ways to investigate problems; Glossary |
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PHOTOELASTICITY ; a method of examining transparent polymer models of structures etc. to isolate stress concentrations and other weak zones. The model is placed between crossed circular polarizing filters (eg Polaroid sheets) and a force applied. The technique also enables residual stress to be shown in transparent articles. |
Click on pictures below for full size image in new window |
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Stress fields (applied and residual) can be exposed using models of structures in photosensitive material placed between polarising filters in the crossed polar position. |
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These injection moulded safety spectacles contain residual moulding stresses shown here using photoelastic viewing techniques. |