Timeline for Thermodynamics: how does the deformation of partially elastic materials produce heat?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 5, 2019 at 0:16 | comment | added | Chet Miller | I was referring to the portion of the energy introduced by stretching related to the features of the molecular structure responsible for the dissipation. I wrote this rather poorly, so I can see how it could be interpreted the way you did. | |
| Jul 4, 2019 at 23:07 | comment | added | Solidification | "energy introduced during the stretching is dissipated rather than recovered." Why? | |
| Jul 4, 2019 at 19:54 | comment | added | Chet Miller | and don't regain their original configurations. In addition, sometimes the cross links break and reform when the network is under stress. Both of these represent non-elastic behavior, and the energy introduced during the stretching is dissipated rather than recovered. | |
| Jul 4, 2019 at 19:51 | comment | added | Chet Miller | Rubber consist of a network structure with bunched up polymer chains connected to one another at chemical junctions called cross links. Between the cross links, the polymer chains behave like tiny elastic springs, which is what gives the network its elastic properties. The chains are highly convoluted, and much longer between cross links than the actual distance between the cross links. Once the load is removed from the rubber, the chains return to their original configurations. This is what gives the rubber its elastic properties. But sometimes some of the chain ends are not attached, | |
| Jul 4, 2019 at 16:49 | comment | added | Solidification | What is going on inside the material which causes heating? | |
| Jul 4, 2019 at 12:32 | history | answered | Chet Miller | CC BY-SA 4.0 |