Falling weight impact testing , Other Engineering

Drop-weight impact towers are frequently used to generate low velocity impact damage. Typically, the falling mass will be instrumented,
containing a load-cell for measuring the load-time trace. The output signal can be integrated to yield a load-displacement trace, a more useful type of curve.
Impact loading results in the following failure mechanisms in composites: delamination, fibre fracture, matrix cracking and fibre-matrix debonding. There are no specified tests for characterizing the impact response of composites and many different procedures are adopted.

 

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It is often difficult to achieve very low energy impacts with a drop weight impact tower. For low energy impacts, one can use a pendulum.

 

Posted Date: 8/27/2012 8:14:04 AM | Location : United States







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