@inproceedings {pub3294,
	title = {Topology Optimization of a Bumper Beam System Considering a Nonlinear Design Requirement
},
	author = {Emily Nutwell AND Nikola Aulig AND Duane Detwiler},
	year = {2017},
	month = {June},
	abstract = {Methods of topology optimization are used to generate an optimal layout of material within a defined design space subject to single or multiple load cases.
These methods are increasingly utilized in the field of concept design for automotive development. A vehicle{\textquoteright}s bumper system is often subjected to
loading conditions which require the structure to be efficient at absorbing energy. While an optimal bumper system maximizes energy absorbed during
crush of the structure there are typically constraints placed on the system{\textquoteright}s performance related to peak stroke and loads that are generated due to vehicle
impacts at various speeds. The Hybrid Cellular Automata algorithm is well suited to consider load cases where efficient energy absorption is the desired criteria. For this work, this approach is applied to a front bumper system of a vehicle that is subjected to various load cases where a maximization of energy absorption is the end goal.
This necessitates a suitable definition of the design space so that the structure will achieve this objective. For this design space, extrusion constraints are
necessary in order to derive a feasible concept design. By comparing the performance of the generated topology results to a typical bumper design, it
can be shown that improvements in energy absorption when normalized by the mass of the design can be achieved through this method.
},
	publisher = {NAFEMS Ltd},
	booktitle = {NAFEMS World Congress 2017}
}