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One hull crack located in ISS, another one suspected

tass.com

21–30 of 330 posts

Re: One hull crack located in ISS, another one suspected

#21

I wonder if radiation will become an issue at some point. It is being irradiated all the time, doesn’t it also start to leak inside? Can that be an issue in the future for inhabitable objects in space?

i think we,re kidding ourselves about human space exploration. machines are taking over and soon they,ll be able to do it autonomously or near so. we,ll be stuck on earth for a good while... with this biome we,re so intent on wiping out right now

Re: One hull crack located in ISS, another one suspected

#22
post #11

Are Tass articles always translated this poorly? I'm just surprised that a state owned news agency would put something like this out.

Are you sure it was a translation? I assumed it was quoting Solovyov speaking English.

The article is reporting an interview that happened on Russian state TV, so it's almost certainly a translation.

Re: One hull crack located in ISS, another one suspected

#23
post #2

Materials aging in space is a pretty deep subject. That it is the Russian Zvevda module that is leaking/cracking is likely related to the fact that it is also the oldest module in the ISS. The ISS is/was scheduled to be retired in 2024 (aka 3 years from now) but there are calls to keep it going. My fantasy would be to have SpaceX move it into the Lunar L1 Lagrange point which would keep it in use but it would have to…

Is there any reason to park in at a Lagrange point instead of just a high orbit?

There aren't that many Lagrange points, so we should probably avoid cluttering them with objects that don't need to be there.

Re: One hull crack located in ISS, another one suspected

#25

I wonder if radiation will become an issue at some point. It is being irradiated all the time, doesn’t it also start to leak inside? Can that be an issue in the future for inhabitable objects in space?

Revolving the earth each 90min, with the changes in the amount of energy received by the sun in each cycle has to be very stressful for a metal frame.

Re: One hull crack located in ISS, another one suspected

#26
post #6

Earlier quoted context omitted.

Duct tape should fix them right up

Save a seat for the Flex Seal guy.

You're joking but this reminds me of a hard sci-fi novel I read recently, Saturn Run[0]. One of the minor worldbuilding trivia there is that adhesives seem to be way overused to fix and modify things in space.

(The book also features the coolest design for a radiator I've ever seen anywhere.)

--

[0] - https://www.goodreads.com/book/show/24611668-saturn-run

Re: One hull crack located in ISS, another one suspected

#27
post #6
post #3

I hope JB Weld and Shoe Goo work in space, or our hopes of interstellar travel are dashed.

Duct tape should fix them right up

The cosmonauts (Russian segment) already tried the tape [0] - it helped, somewhat, but did not fix the problem. Definitely not as advertised...

[0] https://www.spacedaily.com/reports/Air_leak_rate_at_Russias_...

Re: One hull crack located in ISS, another one suspected

#28
post #17

Earlier quoted context omitted.

> That it is the Russian Zvevda module that is leaking/cracking is likely related to the fact that it is also the oldest module in the ISS. Definitely sounds like it. They can't identify the leak on the inside so it doesn't sound like a micrometeoroid impact and they suspect a second leak that is so small they need a microscope to verify: > "So far, we have found one place and suspect another, where as some kind of l…

It completes a cycle of heating and cooling every 90 minutes as it orbits. The temperature differential between sunlit/shaded is quite large, so even though it certainly does not heat to +120C / cool down to -100 C as there is just not enough time, it would still put some stress on it.

Or simple mechanical stress when the ISS raises its altitude. The thrusters cause vibration, and are not applying a uniform force across its surface.

Re: One hull crack located in ISS, another one suspected

#29
post #2

Materials aging in space is a pretty deep subject. That it is the Russian Zvevda module that is leaking/cracking is likely related to the fact that it is also the oldest module in the ISS. The ISS is/was scheduled to be retired in 2024 (aka 3 years from now) but there are calls to keep it going. My fantasy would be to have SpaceX move it into the Lunar L1 Lagrange point which would keep it in use but it would have to…

Is there any reason to park in at a Lagrange point instead of just a high orbit? There aren't that many Lagrange points, so we should probably avoid cluttering them with objects that don't need to be there.

At least for the Moon, the lunar orbit is generally unstable: https://en.m.wikipedia.org/wiki/Lunar_orbit

Re: One hull crack located in ISS, another one suspected

#30
post #15

Earlier quoted context omitted.

I realize their orbit is relatively clear of debris and micro meteors, but is this materials decomposing or degrading and not random damage and happenstance? The ISS has no doubt been important and I remember how excited I was when it was being assembled. Is it really so historically significant it's worth the amount of effort you're describing?

Hull is definitely not decomposing or degrading. If left in peace at sufficiently high altitude it would look the same in a million years. My bet is the issue is most likely stresses due to vibrations under pressure and pressure changes. It is complex but also well known problem. As the astro/kosmonauts move about the station, resupply dock, pressure changes, etc. some parts are being subject to constantly changing s…

> My bet is the issue is most likely stresses due to vibrations under pressure and pressure changes.

So you are saying it's degrading?

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