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137
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The shape memory effect: close up of the heating of the springs in a Ferris wheel. From the TLP Superelasticity and Shape Memory Alloys |
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145
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A force is applied to a paper sheet by stretching it across a metal strip. When the cut is lengthened the crack grows quite suddenly. From TLP: Brittle Fracture |
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147
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A sample of aluminium rod is pulled until it breaks through necking . |
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148
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A sample of brass60/40 rod is pulled until it breaks through necking . |
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149
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A sample of brass70/30 rod is pulled until it breaks through necking. |
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150
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A sample of copper rod is pulled until it breaks through necking. |
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151
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The characteristic sound heard when a bar of tin is bent - the tin cry. It is based on twinning, which is common in structures of low crystallographic symmetry. |
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152
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A NiTi shape memory alloy is first deformed and its shape regained through heating. It also includes a general explanation of the Shape Memory Effect phenomenon. |
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153
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Crack propagation in inflated balloons. It includes the basics of fracture, stress fields in internally pressurised cylinders and the Griffith treatment of the energetics of crack propagation. |
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154
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Shows how cooling of bi-material strips with liquid nitrogen generates curvature |