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| Mechanical Properties | |||||||||||||||||
| ·
When
materials of certain shapes are exposed to compressive loads they may buckle
rather than continuing to respond elastically.
· The threshold for the transition to the Euler buckling mode is abrupt. Below some critical stress the component is stable, above it the component buckles. |
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Buckling
is also an important response in the plastic range. The square tube shown
in the photograph has been loaded in compression under controlled strain
conditions.
· This type of structural failure is used to absorb energy in car crashes. · Torsional loading can also cause buckling failures as illustrated here. |
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