Tensile strength of 3D printed materials: Review and reassessment of test parameters

Abstract One of the advantages provided by fused deposition modelling (FDM) 3D printing technology is the manufacturing of product materials with infill structure, which provides advantages such as reduced production time, product weight and even the final price. In this paper, the tensile mechanical properties, tensile strength and elastic modulus, of PLA, Tough PLA and PC FDM 3D printed materials with the infill structure were analysed and compared. Also, the influence of infill pattern on tensile properties was analysed. Material testing were performed according to ISO 527-2 standard. All results are statistically analysed and results showed that infill pattern have influence on tensile mechanical properties for all three materials.

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Experimental Investigation on Influence of Infill Density on Tensile Mechanical Properties of Different FDM 3D Printed Materials

TEM Journal ◽

10.18421/tem103-25 ◽

2021 ◽

pp. 1195-1201

Author(s):

Adi Pandžić ◽

Damir Hodžić ◽

Edin Kadrić

Keyword(s):

Mechanical Properties ◽

Experimental Investigation ◽

Tensile Strength ◽

Elastic Modulus ◽

Experimental Research ◽

3D Printed ◽

Printed Materials

One of the advantages of FDM technology is the production of product materials with infill structure. In order to make the most of this advantage, the behaviour of FDM printed material with infill structure under different loads has to be analyzed and understood. Therefore, the goal of this experimental research is to analyze influence of infill density (100%, 80%, 60% and 20%) on tensile mechanical properties (tensile strength and elastic modulus) of PLA antibacterial nanocomposite, tough PLA and ABS-X 3D printed materials.

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The Direct 3D Printing of Functional PEEK/Hydroxyapatite Composites via a Fused Filament Fabrication Approach

Polymers ◽

10.3390/polym13040545 ◽

2021 ◽

Vol 13 (4) ◽

pp. 545

Author(s):

Krzysztof Rodzeń ◽

Preetam K. Sharma ◽

Alistair McIlhagger ◽

Mozaffar Mokhtari ◽

Foram Dave ◽

...

Keyword(s):

Tensile Strength ◽

3D Printing ◽

Selective Laser Sintering ◽

Fused Filament Fabrication ◽

Bone Apposition ◽

Innovative Solutions ◽

3D Printed ◽

Work Samples ◽

Viable Approach ◽

Crystalline Domains

The manufacture of polyetheretherketone/hydroxyapatite (PEEK/HA) composites is seen as a viable approach to help enhance direct bone apposition in orthopaedic implants. A range of methods have been used to produce composites, including Selective Laser Sintering and injection moulding. Such techniques have drawbacks and lack flexibility to manufacture complex, custom-designed implants. 3D printing gets around many of the restraints and provides new opportunities for innovative solutions that are structurally suited to meet the needs of the patient. This work reports the direct 3D printing of extruded PEEK/HA composite filaments via a Fused Filament Fabrication (FFF) approach. In this work samples are 3D printed by a custom modified commercial printer Ultimaker 2+ (UM2+). SEM-EDX and µCT analyses show that HA particles are evenly distributed throughout the bulk and across the surface of the native 3D printed samples, with XRD highlighting up to 50% crystallinity and crystalline domains clearly observed in SEM and HR-TEM analyses. This highlights the favourable temperature conditions during 3D printing. The yield stress and ultimate tensile strength obtained for all the samples are comparable to human femoral cortical bone. The results show how FFF 3D printing of PEEK/HA composites up to 30 wt% HA can be achieved.

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NMR magnets for portable applications using 3D printed materials

Journal of Magnetic Resonance ◽

10.1016/j.jmr.2021.106934 ◽

2021 ◽

pp. 106934

Author(s):

Belal M.K. Alnajjar ◽

André Buchau ◽

Lars Baumgártner ◽

Jens Anders

Keyword(s):

3D Printed ◽

Printed Materials

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Assessment of Adhesion Response To 3D Printed Materials For Ophthalmic Device Development

Value in Health ◽

10.1016/j.jval.2016.09.1257 ◽

2016 ◽

Vol 19 (7) ◽

pp. A564

Author(s):

M Alband ◽

RM Lee ◽

M Penny ◽

S Brocchini ◽

ST Hilton

Keyword(s):

Device Development ◽

3D Printed ◽

Printed Materials

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Jammed Emulsions with Adhesive Pea Protein Particles for Elastoplastic Edible 3D Printed Materials

Advanced Functional Materials ◽

10.1002/adfm.202101749 ◽

2021 ◽

pp. 2101749

Author(s):

Simha Sridharan ◽

Marcel B. J. Meinders ◽

Leonard M. Sagis ◽

Johannes H. Bitter ◽

Constantinos V. Nikiforidis

Keyword(s):

Pea Protein ◽

3D Printed ◽

Protein Particles ◽

Printed Materials

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APPLICATION OF 3D PRINTING TECHNOLOGY FOR RAPID TOOLING IN SHEET METAL FORMING

Fundamental and Applied Problems of Engineering and Technology ◽

10.33979/2073-7408-2020-341-3-20-30 ◽

2020 ◽

Vol 3 ◽

pp. 20-30

Author(s):

M.A. SEREZHKIN ◽

D.O. KLIMYUK ◽

A.I. PLOKHIKH

Keyword(s):

3D Printing ◽

Sheet Metal ◽

Sheet Metal Forming ◽

Metal Forming ◽

Rapid Tooling ◽

Printing Technology ◽

3D Printing Technology ◽

3D Printed ◽

Printed Materials ◽

Printing Parameters

The article presents the study of the application of 3D printing technology for rapid tooling in sheet metal forming for custom or small–lot manufacturing. The main issue of the usage of 3D printing technology for die tooling was discovered. It is proposed to use the method of mathematical modelling to investigate how the printing parameters affect the compressive strength of FDM 3D–printed parts. Using expert research methods, the printing parameters most strongly affecting the strength of products were identified for further experiments. A method for testing the strength of 3D–printed materials has been developed and tested.

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