Lightsail | Structure

Building a skeleton structure that will be able to hold the sail in shape during launch, be resilient to the interaction with the interstellar medium and potentially be able to modify the shape of the sail, is a major challenge given the gram-scale mass constraint. There are a number of composite graphene-based materials that are being considered. These materials change their length depending on the voltage applied across them. There are also various other materials that could be engineered to meet mission requirements. This challenge is the primary argument for ‘replacing structure with spin’: it has already ben demonstrated that centripetal acceleration of tiny tip masses can pull the sail flat.

Oct 29, 2018 22:28 Breakthrough Initiatives Posted on: Breakthrough Initiatives

Dear Alejandro,

Thank you for your creative an novel ideas for light sail geometries. We certainly appreciate new approaches for this important problem. We have just completed selection of a number of research teams to look at the light sail problems. And with your permission we will be happy to have them consider your ideas. This may take some time as we have just begun our study process.

Once again, thank you for your input.

Kind Regards,

S. Pete Worden, Executive Director, Breakthrough StarShot

Nov 08, 2019 14:17 Alejandro Baranek Posted on: Breakthrough Initiatives

Dear Pete:

I'm sorry but didn't saw this message until these days. You have my permission to consider my ideas. Please contact me if you are interested, as the method isn't published yet, we have to think in a collaboration schema, because is a powerful tool and produces useful structures.

Until the method will be published, I can share you different structures families with different shapes with structural integrity.

If you contact me by private I can share you more material (Images, videos, prototypes).

Best, Ale.

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