According to spacex, the falcon 9 landing legs are made of carbon fiber with aluminum in a honeycomb shape. How much force would be needed to break that?

  • $\begingroup$ The aluminum honeycomb is an impact absorber, colloquially known as "crush core". It's designed to "break" to attenuate landing loads. Maybe a better question would be how much energy would be necessary to overcome its capabilities? $\endgroup$ – Tristan Jun 29 '20 at 19:10
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    $\begingroup$ Or how much torque would be needed. The answers to @Tristan's comment and to mine is most likely a trade secret that SpaceX divulges only to NASA and to organizations that have signed a nondisclosure agreement with SpaceX. $\endgroup$ – David Hammen Jun 29 '20 at 22:39
  • $\begingroup$ @DavidHammen why do you say that? Musk typically offers a lot of design info to the world as well as , at least over at Tesla corp they will provide almost anything to folks who want to build more electric thingies $\endgroup$ – Carl Witthoft Jun 30 '20 at 12:12
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    $\begingroup$ @CarlWitthoft -- SpaceX ≠ Tesla. SpaceX has very explicitly held most of its knowledge as trade secrets while Tesla has patented a good portion of its intellectual properties (but even Tesla views key technologies as key and holds them as trade secrets). SpaceX has only a few patents assigned to it, almost all of which deal with spacecraft antenna design. Musk views China as SpaceX's long-term competition and views China's blatant disregard for IP law as a key reason to go the trade secret route as opposed to the patent route. $\endgroup$ – David Hammen Jun 30 '20 at 12:33
  • $\begingroup$ Quoting Musk, "We have essentially no patents in SpaceX. Our primary long-term competition is in China—if we published patents, it would be farcical, because the Chinese would just use them as a recipe book." $\endgroup$ – David Hammen Jun 30 '20 at 12:34

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