Evaluation of viscoelastic non-isochoric plastic behavior of PBT and PA6
Evaluation of viscoelastic non-isochoric plastic behavior of PBT and PA6
复制标题
PBT 和 PA6 的粘弹性非等容塑性行为评价
DOI:
10.1007/s11043-022-09552-1
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发表时间:
2022
影响因子:
2.5
通讯作者:
Sakai Takenobu
中科院分区:
文献类型:
--
作者:
Sato Yoshihiko;Masumizu Sayaka;Sakaue Kenichi;Koyanagi Jun;Ohtani Akio;Sakai Takenobu
The present study investigates the non-isochoric plastic behavior of two thermoplastics, polybutylene terephthalate (PBT) and polyamide 6 (PA6). The uniaxial tensile tests under temperature-controlled conditions are performed and Poisson’s ratio and volumetric strain are evaluated through the measurement of the longitudinal and transverse strains by digital image correlation (DIC). In addition, a mechanical model consisting of a viscoelastic and a non-isochoric plastic model is implemented in finite element software and applied to simulate the mechanical behavior in the uniaxial tensile test. The test results of the both thermoplastics show that the Poisson’s ratio during plastic deformation is less than 0.5. Compared to the test result with the finite element analysis, it is found that the variation of the volumetric strain is in good agreement with the finite element analysis assuming non-isochoric plasticity. These facts mean that the plastic behavior of PBT and PA6 is non-isochoric.
DOI:
10.2472/jsms.52.12appendix_243
发表时间:
2001
期刊:
Journal of The Society of Materials Science, Japan
影响因子:
--
作者:
Y. Sanomura
通讯作者:
Y. Sanomura
DOI:
10.1140/epjst/e2012-01598-x
发表时间:
2012
期刊:
The European Physical Journal Special Topics
影响因子:
--
作者:
S. Hiermaier;F. Huberth
通讯作者:
F. Huberth
DOI:
--
发表时间:
2017
期刊:
--
影响因子:
--
作者:
S. Kolling;M. Vogler
通讯作者:
M. Vogler