Difference between revisions of "Wear lifespan"
(New page: Every machine is subject to '''wear''', which results in a limited '''lifetime'''. There is mechanical wear and wear by radiation. Also, chemical processes inside every m...) |
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Many [[synthetic materials]] become brittle due to decomposition effects, depending on temperature. | Many [[synthetic materials]] become brittle due to decomposition effects, depending on temperature. | ||
| − | + | {| | |
| − | + | |- | |
| − | + | |style="width:30%;border:1px solid #888888;padding:5px 5px 5px 5px;background:#CCCCCC"| | |
| + | material | ||
| + | |style="width:20%;border:1px solid #888888;padding:5px 5px 5px 5px;background:#CCCCCC"| | ||
| + | wear lifespan | ||
| + | |style="width:50%;border:1px solid #888888;padding:5px 5px 5px 5px;background:#CCCCCC"| | ||
| + | comments | ||
| + | |- | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | [[silicone]] | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | ? | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | under Martian radiation conditions | ||
| + | |- | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | [[polyethylen]] | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | ? | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | with polymer plasticiser | ||
| + | |} | ||
| − | == | + | ==Objects== |
| + | Machines, wear parts and all the other things of industrie and agriculture undergo a process of mostly mechanical deterioration. Abrasion and material fatigue can not be avoided completely. | ||
| − | Open | + | {| |
| + | |- | ||
| + | |style="width:30%;border:1px solid #888888;padding:5px 5px 5px 5px;background:#CCCCCC"| | ||
| + | object | ||
| + | |style="width:20%;border:1px solid #888888;padding:5px 5px 5px 5px;background:#CCCCCC"| | ||
| + | wear lifespan | ||
| + | |style="width:50%;border:1px solid #888888;padding:5px 5px 5px 5px;background:#CCCCCC"| | ||
| + | comments | ||
| + | |- | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | [[digging machine]]s | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | ? | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | basalt digging, time before the cutting tool must be replaced | ||
| + | |- | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | [[clothes]] | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | ? | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | e.g. polyester fleece | ||
| + | |- | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | [[space suit]] | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | ? | ||
| + | |style="border:1px solid #888888;padding:5px 5px 5px 5px"| | ||
| + | for outdoor use | ||
| + | |} | ||
| + | |||
| + | ==Open issues== | ||
*How many m<sup>3</sup> of basalt can be processed by [[digging machine]]s before the cutting tool must be replaced? | *How many m<sup>3</sup> of basalt can be processed by [[digging machine]]s before the cutting tool must be replaced? | ||
| + | *What sort of clothes has a maximum lifespan? How many years can it be worn? | ||
[[Category:Material]] | [[Category:Material]] | ||
[[Category:Technology]] | [[Category:Technology]] | ||
Revision as of 07:59, 15 January 2008
Every machine is subject to wear, which results in a limited lifetime. There is mechanical wear and wear by radiation. Also, chemical processes inside every material cause changes in the structure, lost of strength, etc.
This page collects data about the wear lifetime of many materials and machines with regard to the Martian environmental conditions and indoor conditions.
Materials
Many synthetic materials become brittle due to decomposition effects, depending on temperature.
|
material |
wear lifespan |
comments |
|
? |
under Martian radiation conditions | |
|
? |
with polymer plasticiser |
Objects
Machines, wear parts and all the other things of industrie and agriculture undergo a process of mostly mechanical deterioration. Abrasion and material fatigue can not be avoided completely.
|
object |
wear lifespan |
comments |
|
? |
basalt digging, time before the cutting tool must be replaced | |
|
? |
e.g. polyester fleece | |
|
? |
for outdoor use |
Open issues
- How many m3 of basalt can be processed by digging machines before the cutting tool must be replaced?
- What sort of clothes has a maximum lifespan? How many years can it be worn?
