Thermographic Characterisation of the Deformation and Fracture Behaviour of Polymers with High Time and Spatial Resolution
Thermographic Characterisation of the Deformation and Fracture Behaviour of Polymers with High Time and Spatial Resolution
复制标题
高时间和空间分辨率聚合物变形和断裂行为的热成像表征
DOI:
10.1007/978-3-319-41879-7_4
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Schneider
中科院分区:
文献类型:
--
作者:
Schneider
The thermo-mechanical coupling of polymers describes the dissipative heating during plastic deformation, which again changes the local molecular mobility. It was investigated at the example of poly(ethylene terephthalate) (PET) and polycarbonate (PC). Depending on the sample geometry certain amount of stored elastic energy is available for neck initiation accompanied by local heating of the sample. In case of the semicrystalline PET temperature jumps until and above the glass transition temperature (Tg) can be observed, meanwhile the temperature increase at yield is significant belowTgfor PC. At crack initiation and fracture a further increase of the temperature is detectable for both materials, for PET close to the melting temperature of the crystalline phase and for PC aboveTg. The discussion of polymer yielding and fracture with respect to preceding temperature changes casts a new light on relevant molecular processes.
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影响因子:
4.6
作者:
J. Koenen
通讯作者:
J. Koenen
影响因子:
3
作者:
T. Yamauchi
通讯作者:
T. Yamauchi
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
M. Vollmer;K. Möllmann
通讯作者:
K. Möllmann
DOI:
--
发表时间:
1973
期刊:
影响因子:
--
作者:
A. Cross;R. N. Haward
通讯作者:
R. N. Haward
影响因子:
3.9
作者:
Kaestner, Markus;Obst, Martin;Ulbricht, Volker
通讯作者:
Ulbricht, Volker