共 9 条
On the visco-elasto-plastic response of additively manufactured polyamide-12 (PA-12) through selective laser sintering
被引:61
作者:

Lammens, N.
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机构:
Univ Ghent, Dept Mat Sci & Engn, Technol Pk Zwijnaarde 903, B-9052 Zwijnaarde, Belgium
SIM STREAM Program, Technol Pk 935, B-9052 Zwijnaarde, Belgium Univ Ghent, Dept Mat Sci & Engn, Technol Pk Zwijnaarde 903, B-9052 Zwijnaarde, Belgium

Kersemans, M.
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h-index: 0
机构:
Univ Ghent, Dept Mat Sci & Engn, Technol Pk Zwijnaarde 903, B-9052 Zwijnaarde, Belgium Univ Ghent, Dept Mat Sci & Engn, Technol Pk Zwijnaarde 903, B-9052 Zwijnaarde, Belgium

De Baere, Ives
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h-index: 0
机构:
Univ Ghent, Dept Mat Sci & Engn, Technol Pk Zwijnaarde 903, B-9052 Zwijnaarde, Belgium
SIM M3 Program, Technol Pk 935, B-9052 Zwijnaarde, Belgium Univ Ghent, Dept Mat Sci & Engn, Technol Pk Zwijnaarde 903, B-9052 Zwijnaarde, Belgium

Van Paepegem, W.
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h-index: 0
机构:
Univ Ghent, Dept Mat Sci & Engn, Technol Pk Zwijnaarde 903, B-9052 Zwijnaarde, Belgium Univ Ghent, Dept Mat Sci & Engn, Technol Pk Zwijnaarde 903, B-9052 Zwijnaarde, Belgium
机构:
[1] Univ Ghent, Dept Mat Sci & Engn, Technol Pk Zwijnaarde 903, B-9052 Zwijnaarde, Belgium
[2] SIM STREAM Program, Technol Pk 935, B-9052 Zwijnaarde, Belgium
[3] SIM M3 Program, Technol Pk 935, B-9052 Zwijnaarde, Belgium
来源:
关键词:
MECHANICAL-PROPERTIES;
NYLON;
12;
ANISOTROPY;
SPECIMENS;
BEHAVIOR;
PARTS;
D O I:
10.1016/j.polymertesting.2016.11.032
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
This work presents an in-depth study on the mechanical behavior of selective laser sintered (SLS) nylon (PA-12). The entire visco-elasto-plastic response is determined based on experimental data obtained through tensile, compression, shear and relaxation testing. In addition, ultrasonic non-destructive testing is proposed as an alternative to conventional testing for the derivation of the elastic properties of this material. An isotropic elastic behavior was observed, while a clear orthotropic and non-linear response was found for both the plastic curves and the relaxation behavior. Strength data suggests laser sintered PA-12 will fail in tension rather than in shear. The ultrasonic tests correspond well to conventional tensile data (at high rates), and represent a cost-effective alternative to extensive conventional tensile testing. The presented test data can potentially be used to derive a detailed material model suitable for modelling static, fatigue and impact applications using 3D printed PA-12. (C) 2016 Elsevier Ltd. All rights reserved.
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页码:149 / 155
页数:7
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