Location of structural fuses for the robust design of structural impact problems

Example of optimal location of fuses to enforce crushing (no global buckling).

We have developed an approach to optimally locate structural fuses (i.e., openings) on a tube so as to prevent global buckling while enforcing a given amount of absorbed energy. The approach accounts for uncertainties which play an important role in nonlinear dynamic problems.

This approach can be used in the design of the front rails of a car for improved crashworthiness (model run with LS-Dyna).

 

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