E3S Web Conf.
Volume 32, 2018EENVIRO 2017 Workshop - Advances in Heat and Transfer in Built Environment
|Number of page(s)||6|
|Published online||21 February 2018|
Thermal expansion coefficient determination of polylactic acid using digital image correlation
Mechanical Engineering Department, Mechanical Faculty, Technical University of Cluj – Napoca, Romania
* Corresponding author: firstname.lastname@example.org
This paper aims determining the linear thermal expansion coefficient (CTE) of polylactic acid (PLA) using an optical method for measuring deformations called digital image correlation method (DIC). Because PLA is often used in making many pieces with 3D printing technology, it is opportune to know this coefficient to obtain a higher degree of precision in the construction of parts and to monitor deformations when these parts are subjected to a thermal gradient. Are used two PLA discs with 20 and 40% degree of filling. In parallel with this approach was determined the linear thermal expansion coefficient (CTE) for the copper cylinder on the surface of which are placed the two discs of PLA.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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