TY - JOUR
T1 - Effect of the infill density on the performance of a 3D-printed compliant finger
AU - Liu, Chih Hsing
AU - Hung, Ping Teng
N1 - Funding Information:
This work was supported by grants from the Ministry of Science and Technology of Taiwan (MOST 110-2628-E-006-004 and MOST 111-2628-E-006-001-MY2). The authors would like to thank Mao-Cheng Hsu, Wei-Ting Chen, and Yang Chen, of the Department of Mechanical Engineering at the National Cheng Kung University, for their assistance with the experimental setup used to perform the grasping tests.
Funding Information:
This work was supported by grants from the Ministry of Science and Technology of Taiwan (MOST 110-2628-E-006-004 and MOST 111-2628-E-006-001-MY2). The authors would like to thank Mao-Cheng Hsu, Wei-Ting Chen, and Yang Chen, of the Department of Mechanical Engineering at the National Cheng Kung University, for their assistance with the experimental setup used to perform the grasping tests. The authors confirm that the data supporting the findings of this study are available within the article.
Publisher Copyright:
© 2022 The Author(s)
PY - 2022/11
Y1 - 2022/11
N2 - Recent advances in additive manufacturing and soft robotics have enabled the production of compliant fingers and grippers using 3D printing techniques. For instance, the fused deposition modeling (FDM) method allows users to print flexible filaments with pre-specified infill densities. In order to investigate the effect of the infill density on the performance of a 3D-printed compliant finger, this study performs experimental and numerical investigations in order to develop empirical equations for estimating the output force, the output displacement, and the input force corresponding to given values of the input displacement and infill density of the compliant finger. A commercially available thermoplastic elastomer (TPE) filament, Filastic™, manufactured by BotFeeder is used in this study. Prototypes of four compliant fingers with infill densities of 40%, 60%, 80%, and 100% are produced. A two-fingered gripper is also developed and the relationship between the infill density and the maximum payload is investigated. In addition, a finite element model taking into consideration the hyperelasticity of the TPE is developed to analyze the behavior of compliant fingers with different infill densities. The numerical results show good agreement with the experimental data and with the curves for the empirical equations.
AB - Recent advances in additive manufacturing and soft robotics have enabled the production of compliant fingers and grippers using 3D printing techniques. For instance, the fused deposition modeling (FDM) method allows users to print flexible filaments with pre-specified infill densities. In order to investigate the effect of the infill density on the performance of a 3D-printed compliant finger, this study performs experimental and numerical investigations in order to develop empirical equations for estimating the output force, the output displacement, and the input force corresponding to given values of the input displacement and infill density of the compliant finger. A commercially available thermoplastic elastomer (TPE) filament, Filastic™, manufactured by BotFeeder is used in this study. Prototypes of four compliant fingers with infill densities of 40%, 60%, 80%, and 100% are produced. A two-fingered gripper is also developed and the relationship between the infill density and the maximum payload is investigated. In addition, a finite element model taking into consideration the hyperelasticity of the TPE is developed to analyze the behavior of compliant fingers with different infill densities. The numerical results show good agreement with the experimental data and with the curves for the empirical equations.
UR - http://www.scopus.com/inward/record.url?scp=85139067763&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85139067763&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2022.111203
DO - 10.1016/j.matdes.2022.111203
M3 - Article
AN - SCOPUS:85139067763
SN - 0264-1275
VL - 223
JO - International Journal of Materials in Engineering Applications
JF - International Journal of Materials in Engineering Applications
M1 - 111203
ER -