Numerical and experimental investigation on creep response of 3D printed Polylactic acid (PLA) samples. Part I: The effect of building direction and unidirectional raster orientation

Adibeig，Mohammad Reza1,2; Vakili-Tahami，Farid1; Saeimi-Sadigh，Mohammad Ali3

2023-09-01

10.1016/j.jmbbm.2023.106025

Journal of the Mechanical Behavior of Biomedical Materials   影响因子和分区

1751-6161

1878-0180

The main aim of this research work is to investigate the effects of building directions and raster orientations on the creep behavior of 3D-printed plastic material and to develop rheological constitutive models to estimate the creep behavior of components. These components have been manufactured through the Fused Deposition Modeling (FDM) technique in which materials are heated and extruded through a nozzle to create 3D Polylactic acid (PLA) specimens. Since 3D-printed specimens exhibit anisotropic behavior, studying their building condition is necessary. Both building direction and raster orientation are among the fabrication conditions that play a major role in the mechanical behavior of the specimens. The tensile behavior of 3D-produced PLA specimens and their creep behavior were evaluated. To model the creep behavior of 3D printed PLA, three different types of rheological constitutive models, Zener, Burgers, and modified Burgers were used analytically and numerically. The finite element (FE) model of the 3D printed unnotched samples was developed to predict the creep behavior of notched samples. The results show that 3D FE models can predict the creep behavior of AM-notched specimens with high accuracy.

Anisotropy FDM FEM Rheological model

SCI ; EI

英语

通讯

Iran National Science Foundation[99031533];

Engineering ; Materials Science

Engineering, Biomedical ; Materials Science, Biomaterials

WOS:001082349700001

ELSEVIER

20233014432745

Constitutive models ; Creep ; Finite element method ; Fused Deposition Modeling ; Polyesters

Reproduction, Copying:745.2 ; Organic Polymers:815.1.1 ; Mathematics:921 ; Numerical Methods:921.6 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

2-s2.0-85165361422

Scopus

1.Department of Mechanical Engineering,University of Tabriz,Tabriz,Iran
2.Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,China
3.Department of Mechanical Engineering,Azarbaijan Shahid Madani University,Tabriz,Iran

Adibeig，Mohammad Reza,Vakili-Tahami，Farid,Saeimi-Sadigh，Mohammad Ali. Numerical and experimental investigation on creep response of 3D printed Polylactic acid (PLA) samples. Part I: The effect of building direction and unidirectional raster orientation[J]. Journal of the Mechanical Behavior of Biomedical Materials,2023,145.

Adibeig，Mohammad Reza,Vakili-Tahami，Farid,&Saeimi-Sadigh，Mohammad Ali.(2023).Numerical and experimental investigation on creep response of 3D printed Polylactic acid (PLA) samples. Part I: The effect of building direction and unidirectional raster orientation.Journal of the Mechanical Behavior of Biomedical Materials,145.

Adibeig，Mohammad Reza,et al."Numerical and experimental investigation on creep response of 3D printed Polylactic acid (PLA) samples. Part I: The effect of building direction and unidirectional raster orientation".Journal of the Mechanical Behavior of Biomedical Materials 145(2023).