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Human bones are very light, but nonetheless able to withstand extremely heavy loads. Now the light-weight construction industry is interested in copying their structural make-up.

Researchers at the Germany-based Fraunhofer Institute for Manufacturing Engineering and Applied Materials Research have now developed a simulation program that calculates the internal structure and density distribution of the bone material.

“Individual bone implants whose structure resembles that of the natural bone can therefore be produced quite easily,” said Andreas Burblies, spokesman for the Fraunhofer Numerical Simulation of Products, Processes Alliance,”First, a simulation program calculates the bone’s internal structure and porosity. Then, a rapid prototyping machine ‘bakes’ the implant from metal powder.”

The method allows the engineers to produce particularly lightweight components – customised for each application – that are also extremely robust.