Abstract
This study presents an approach to determine strain-stress curves of printed PLA material using 2D Digital Image Correlation (DIC) method. Besides, the present paper is an extended version of the previous study of the authors[1]. The tensile specimens were printed with a constant infill ratio and performed uniaxial tensile test with various test speeds. The elongations and local strains were measured with 2D DIC. Stress vs. strain curves were calculated from force data and DIC measurement. As a result, ultimate tensile stresses were directly proportional with the test speed increments, and maximum forces as well. The elongations were observed to decline during the test speed increments. It was underlined that the elongations gave the average results instead of the real behavior of the fractured area.
References
- Murat Aydın and Özkan ÖZ, “Determination of Mechanical Behaviour of Printed PLA Specimens Using Digital Image Correlation”, International Symposium on Industry 4.0 and Applications (ISIA 2017), 12-14 October 2017, Karabuk, Turkey.
- Frank van der Klift, Yoichiro Koga, Akira Todoroki, Masahito Ueda, Yoshiyasu Hirano, Ryosuke Matsuzaki, “3D Printing of Continuous Carbon Fibre Reinforced Thermo-Plastic (CFRTP) Tensile Test Specimens”, Open Journal of Composite Materials, Vol. 6, pp. 18-27, 2016.
- C.S. Lee, S.G. Kim, H.J. Kim, S.H. Ahn, “Measurement of anisotropic compressive strength of rapid prototyping parts”, Journal of Materials Processing Technology, Vol. 187-188, pp. 627-630.
- Russell A. Giordano, Benjamin M. Wu, Scott W. Borland, Linda G. Cima, Emanuel M. Sachs, Michael J. Cima, “Mechanical properties of dense polylactic acid structures fabricated by three-dimensional printing”, Journal of Biomaterials Science, Polymer Edition, 8:1, 63-75, 1997.
- B.M. Tymrak, M. Kreiger, J.M. Pearce, “Mechanical properties of components fabricated with open-source 3-D printers under realistic environmental conditions”, Materials and Design, Vol. 58, pp. 242-246, 2014.
- Anna Bellini and Selçuk Güçeri, “Mechanical characterization of parts fabricated using fused deposition modeling”, Rapid Prototyping Journal, Vol.9, No.4, pp. 252–264, 2003.
- ASTM D638-10, “Standard Test Method for Tensile Properties of Plastics”, ASTM International, West Conshohocken, PA, 2010, www.astm.org
Abstract
This study presents an approach to determine strain-stress curves of printed PLA material using 2D Digital Image Correlation (DIC) method. Besides, the present paper is an extended version of the previous study of the authors[1]. The tensile specimens were printed with a constant infill ratio and performed uniaxial tensile test with various test speeds. The elongations and local strains were measured with 2D DIC. Stress vs. strain curves were calculated from force data and DIC measurement. As a result, ultimate tensile stresses were directly proportional with the test speed increments, and maximum forces as well. The elongations were observed to decline during the test speed increments. It was underlined that the elongations gave the average results instead of the real behavior of the fractured area.
References
- Murat Aydın and Özkan ÖZ, “Determination of Mechanical Behaviour of Printed PLA Specimens Using Digital Image Correlation”, International Symposium on Industry 4.0 and Applications (ISIA 2017), 12-14 October 2017, Karabuk, Turkey.
- Frank van der Klift, Yoichiro Koga, Akira Todoroki, Masahito Ueda, Yoshiyasu Hirano, Ryosuke Matsuzaki, “3D Printing of Continuous Carbon Fibre Reinforced Thermo-Plastic (CFRTP) Tensile Test Specimens”, Open Journal of Composite Materials, Vol. 6, pp. 18-27, 2016.
- C.S. Lee, S.G. Kim, H.J. Kim, S.H. Ahn, “Measurement of anisotropic compressive strength of rapid prototyping parts”, Journal of Materials Processing Technology, Vol. 187-188, pp. 627-630.
- Russell A. Giordano, Benjamin M. Wu, Scott W. Borland, Linda G. Cima, Emanuel M. Sachs, Michael J. Cima, “Mechanical properties of dense polylactic acid structures fabricated by three-dimensional printing”, Journal of Biomaterials Science, Polymer Edition, 8:1, 63-75, 1997.
- B.M. Tymrak, M. Kreiger, J.M. Pearce, “Mechanical properties of components fabricated with open-source 3-D printers under realistic environmental conditions”, Materials and Design, Vol. 58, pp. 242-246, 2014.
- Anna Bellini and Selçuk Güçeri, “Mechanical characterization of parts fabricated using fused deposition modeling”, Rapid Prototyping Journal, Vol.9, No.4, pp. 252–264, 2003.
- ASTM D638-10, “Standard Test Method for Tensile Properties of Plastics”, ASTM International, West Conshohocken, PA, 2010, www.astm.org
Details
| Primary Language | English |
|---|---|
| Subjects | Engineering |
| Journal Section | Articles |
| Authors | |
| Publication Date | July 27, 2018 |
| Submission Date | January 7, 2018 |
| Published in Issue | Year 2018 Volume: 2 Issue: 2 |
Cite
International Journal of 3D Printing Technologies and Digital Industry is lisenced under Creative Commons Atıf-GayriTicari 4.0 Uluslararası Lisansı