Analyzing the effect of notch geometry on the impact strength of 3D-printed specimens
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Ali Solouki
Ali Solouki is a Master's student from Iran University of Science and Technology (IUST) currently in the major of systems optimization. He has finished his Bachelor from Isfahan University of Technology. Both of his Master's and Bachelor are in industrial engineering. His master's thesis is about the production of specimens with 3D printing. In his research, it is tried to propose a manufacturing method that results in more applicable products and to find the strongest geometries. This paper is part of his research on the mentioned subject.
Dr. Mohammad Reza Mohammad Aliha received his PhD from Iran University of Science and Technology (IUST) in 2009 and he is currently an associate professor at this university. His main research interests cover (1) the fracture and damage mechanisms of engineering materials, including concrete and rocks under tensile-shear loading conditions; (2) new experimental methods for determining the fracture toughness of rocks and brittle-materials under different loading modes; and (3) theoretical and numerical analyses of the obtained experimental data. He has published more than 160 journal papers for investigating the fracture and damage behavior of cracked/notched components and he is now ranked among the top 1% of world scientists in the field of fracture mechanics.
Ahmad Makui is a Professor of Industrial Engineering at Iran University of Science and Technology. He received his Ph.D. from Iran University of Science and Technology in 2000 and initiated his work as a faculty member at SIE since 2003. His research vision is concentrated mainly on Operations Research and Decision science. He teaches Operations Research, Decision Making Analysis and Production Planning courses. Besides, he, currently, serves as the editor in chief for JISE (Journal of Industrial and Systems Engineering) and Decision Science Letters.
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Naghdali Choupani
Naghdali Choupani Professor Naghdali Choupani currently works at Gebze Technical University. In recent years, he made an attempt to explain some of the important issues associated with the fracture of composite materials, adhesively bonded joints, polymeric materials, concretes, rocks, dentistry cements, welding joints, shape memory alloys and etc. As a part of experimental efforts, he conducted fracture toughness tests and performed FE analyses. He also examined the fracture surfaces of the materials by SEM.
Abstract
Additive manufacturing (AM) using 3D printing techniques such as fused deposition modeling (FDM) has now found much attention, not only in prototyping but also in industrial production. Indeed, the 3D-printed components are now widely used as structural elements in many applications such as biomechanical engineering (dentistry, orthopedics, bio implants, etc.) and therefore, full understanding of their strength, load carrying capacity, improving the mechanical behaviors, and manufacturing process is an important issue. Charpy impact experiments offer information on the strength of a material to sudden failure where a sharp stress raiser or notch is present. In addition to providing information not available from any other simple mechanical experiments, the impact resistance tests are quick and inexpensive, so they are often used. In this research, impact strength experiments were conducted at room temperatures on rectangular samples containing three different notches including V-notch, U-notch, and Keyhole-notch to determine impact resistance of the 3D-printed polylactic acid (PLA) components. The capability of multiple comparison tests for analysis of variance like ANOVA, Tukey, and Fisher methods for prediction of impact resistance in the tested specimens were also investigated. The samples containing Keyhole notch showed highest Charpy impact resistance. In contrary, V-notched sample provided the lowest impact energy. All the employed statistical analyses reveal that the notch type has meaningful influence on the impact energy of 3D-printed parts.
About the authors
Ali Solouki is a Master's student from Iran University of Science and Technology (IUST) currently in the major of systems optimization. He has finished his Bachelor from Isfahan University of Technology. Both of his Master's and Bachelor are in industrial engineering. His master's thesis is about the production of specimens with 3D printing. In his research, it is tried to propose a manufacturing method that results in more applicable products and to find the strongest geometries. This paper is part of his research on the mentioned subject.
Dr. Mohammad Reza Mohammad Aliha received his PhD from Iran University of Science and Technology (IUST) in 2009 and he is currently an associate professor at this university. His main research interests cover (1) the fracture and damage mechanisms of engineering materials, including concrete and rocks under tensile-shear loading conditions; (2) new experimental methods for determining the fracture toughness of rocks and brittle-materials under different loading modes; and (3) theoretical and numerical analyses of the obtained experimental data. He has published more than 160 journal papers for investigating the fracture and damage behavior of cracked/notched components and he is now ranked among the top 1% of world scientists in the field of fracture mechanics.
Ahmad Makui is a Professor of Industrial Engineering at Iran University of Science and Technology. He received his Ph.D. from Iran University of Science and Technology in 2000 and initiated his work as a faculty member at SIE since 2003. His research vision is concentrated mainly on Operations Research and Decision science. He teaches Operations Research, Decision Making Analysis and Production Planning courses. Besides, he, currently, serves as the editor in chief for JISE (Journal of Industrial and Systems Engineering) and Decision Science Letters.
Naghdali Choupani Professor Naghdali Choupani currently works at Gebze Technical University. In recent years, he made an attempt to explain some of the important issues associated with the fracture of composite materials, adhesively bonded joints, polymeric materials, concretes, rocks, dentistry cements, welding joints, shape memory alloys and etc. As a part of experimental efforts, he conducted fracture toughness tests and performed FE analyses. He also examined the fracture surfaces of the materials by SEM.
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Research ethics: Not applicable.
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Author contributions: The authors have has accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The authors state no conflict of interest.
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Research funding: None declared.
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Data availability: The raw data can be obtained on request from the corresponding author.
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© 2023 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Effects of infill patterns and densities on crack propagation behavior in additive manufactured parts: a comparative study
- Effect of carbon nanotubes on microstructure and mechanical properties of TiZrVMnCu–Er high entropy alloy composites
- Electrochemical, mechanical, and antibacterial properties of the AZ91 Mg alloy by hybrid and layered hydroxyapatite and tantalum oxide sol–gel coating
- Fatigue performance of laser cut carbon fiber-reinforced epoxy and polyamide 6 considering specimen width
- Effect of pack characteristics and process parameters on the properties of aluminide-coated Inconel 625 alloy
- Analyzing the effect of notch geometry on the impact strength of 3D-printed specimens
- Systemic observation and measurement of microgap formation in dental implant–abutment connection interface under fatigue
- Effect of bonding conditions on mechanical performance of DP600 steels at different ambient temperatures
- In situ observation and understanding of the arc erosion behavior of electrical contact materials
- Finite element analysis of bending and torsional loading of two different endodontic rotary files with different off-center geometric sections
- Tribo-corrosion behavior of electroplating, nitrocarburizing, and QPQ processes on barrel finishing
- Vibrational comfort improvement for a passenger car driver seat
- A19-saponin–modified polymethyl methacrylate base denture composites: antimicrobial, mechanical and water absorption potentials
- Effect of temperature and rolling direction on the formability of CP2 and Ti-6Al-4V titanium materials
Articles in the same Issue
- Frontmatter
- Effects of infill patterns and densities on crack propagation behavior in additive manufactured parts: a comparative study
- Effect of carbon nanotubes on microstructure and mechanical properties of TiZrVMnCu–Er high entropy alloy composites
- Electrochemical, mechanical, and antibacterial properties of the AZ91 Mg alloy by hybrid and layered hydroxyapatite and tantalum oxide sol–gel coating
- Fatigue performance of laser cut carbon fiber-reinforced epoxy and polyamide 6 considering specimen width
- Effect of pack characteristics and process parameters on the properties of aluminide-coated Inconel 625 alloy
- Analyzing the effect of notch geometry on the impact strength of 3D-printed specimens
- Systemic observation and measurement of microgap formation in dental implant–abutment connection interface under fatigue
- Effect of bonding conditions on mechanical performance of DP600 steels at different ambient temperatures
- In situ observation and understanding of the arc erosion behavior of electrical contact materials
- Finite element analysis of bending and torsional loading of two different endodontic rotary files with different off-center geometric sections
- Tribo-corrosion behavior of electroplating, nitrocarburizing, and QPQ processes on barrel finishing
- Vibrational comfort improvement for a passenger car driver seat
- A19-saponin–modified polymethyl methacrylate base denture composites: antimicrobial, mechanical and water absorption potentials
- Effect of temperature and rolling direction on the formability of CP2 and Ti-6Al-4V titanium materials
