Mechanical behavior of 3D printed biomimetic Koch fractal contact and interlocking

2018 ◽  
Vol 24 ◽  
pp. 58-65 ◽  
Author(s):  
Mona Monsef Khoshhesab ◽  
Yaning Li
Keyword(s):  
Mechanical Behavior ◽  
3D Printed ◽  
Koch Fractal

scholarly journals Influence of crosslinking on the mechanical behavior of 3D printed alginate scaffolds: Experimental and numerical approaches

2018 ◽  
Vol 80 ◽  
pp. 111-118 ◽  
Author(s):  
Saman Naghieh ◽  
Mohammad Reza Karamooz-Ravari ◽  
MD Sarker ◽  
Eva Karki ◽  
Xiongbiao Chen
Keyword(s):  
Mechanical Behavior ◽  
3D Printed ◽  
Numerical Approaches

Investigation of the Mechanical Behavior of 3D Printed Polyamide-12 Joints for Reduced Scale Models of Rock Mass

2020 ◽  
Vol 53 (6) ◽  
pp. 2687-2705
Author(s):  
Jana Jaber ◽  
Marianne Conin ◽  
Olivier Deck ◽  
Mohamed Moumni ◽  
Olivier Godard ◽  
...  
Keyword(s):  
Rock Mass ◽  
Mechanical Behavior ◽  
Polyamide 12 ◽  
Scale Models ◽  
3D Printed ◽  
Reduced Scale

scholarly journals Investigating mechanical properties of 3D printed parts manufactured in different orientations on Multijet printer

2021 ◽  
Author(s):  
Ramesh Chand ◽  
Vishal S Sharma ◽  
Trehan Rajeev
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Mechanical Behavior ◽  
Polymer Material ◽  
Polymeric Materials ◽  
Tensile Behavior ◽  
Jet Printing ◽  
3D Printed

Abstract Polymer material based products in the engineering field are most widely produced by the multi jet printing (MJP). These products impart inherent benefits in manufacturing intricate contours and shapes at less additional expenses. This emphasizes the importance of studying the mechanical behavior of the manufactured parts, using polymeric materials in different orientations. In this investigation density, tensile behavior & hardness were studied for 3D-printed parts produced in four different orientations (A, B, C and D). It is found that for the best mechanical properties part should be fabricated using orientation ‘A’. Furthermore, for density and tensile strength part should not be fabricated using orientation ‘C’. Also in case of hardness part should not be fabricated in orientation ‘B’.

Mechanical behavior of 3D printed micro lattice material structure

2021 ◽  
Author(s):  
R. Raja ◽  
Jebas D Gabriel ◽  
Sabitha Jannet ◽  
A Mohammed Niyas ◽  
S.J. Vijay ◽  
...  
Keyword(s):  
Mechanical Behavior ◽  
Material Structure ◽  
Lattice Material ◽  
3D Printed

Mechanical Behavior of 3D Printed Stochastic Lattice Structures

2016 ◽  
Vol 258 ◽  
pp. 225-228 ◽  
Author(s):  
Georgios Maliaris ◽  
Elias Sarafis
Keyword(s):  
Mechanical Behavior ◽  
Mechanical Response ◽  
Voronoi Tessellation ◽  
Element Model ◽  
Adjacent Cell ◽  
Lattice Structures ◽  
Voronoi Cells ◽  
Compressive Loads ◽  
3D Printed ◽  
Irregular Cell

Stochastic lattice structures are modeled using a generative algorithm. In particular, the voronoi tessellation technique is applied for modeling cellular solids with irregular cell geometry and variable strut sections. The ligaments are formed considering the volume and shape characteristics of the voronoi cells. This way, the strut cross section variability is linked to the adjacent cell topology. The developed geometry is used for 3D printing the structures through a high accuracy SLA 3D printer. The mechanical properties of the photosensitive resin were determined by conducting tension experiments on appropriate 3D printed specimens. The printed stochastic structures were subjected to compressive loads in order to investigate their mechanical response. A finite element model of the compressive tests using the generated geometry, is also developed. The calculated results provide a good correlation with the experimental ones and also provide precious insight for the characterization of the mechanical behavior of the tested structures.

scholarly journals The Comparison of Microstructure and Mechanical Behavior of Stainless Steel 316L Using Near Net Shaped and Fully Embedded Methodologies Using DED Metal Advanced Manufacturing

2021 ◽  
Vol 2129 (1) ◽  
pp. 012012
Author(s):  
Marcie Vandever ◽  
Ragavanantham Shanmugam ◽  
Monsuru Ramoni ◽  
Peter Romine ◽  
Harry Whiting
Keyword(s):  
Stainless Steel ◽  
Mechanical Behavior ◽  
Steel Part ◽  
Material Structure ◽  
Advanced Manufacturing ◽  
Stainless Steel 316L ◽  
Metal Printing ◽  
Direct Energy ◽  
3D Printed ◽  
Overall Performance

Abstract The objective of this research is to compare the microstructure and mechanical behavior of 3D printed SS 316L using near net shaped and fully embedded manufacturing extraction techniques. Research findings will allow us to determine if two different manufacturing extraction methodologies of a 3D printed stainless steel part will affect the overall performance of test specimens. Research will implement advanced manufacturing, part designing, part modeling, part simulation, part production, CT X-ray scanning, material characterization, and material testing. Printing of test specimens will be done with a Optomec Lens 3D Hybrid Machine Tool Direct Energy Deposition (DED) metal printer. The DED metal printer will be used for prototype printing and printing test samples. The areas of study will also include modeling and design using SolidWorks CAD software. A comparison of printing orientation/configuration, internal composition, and testing of material structure in the areas of stress to complete failure of test specimens. The internal structure analysis will observe the porosity effects of 3D metal printing with near net shaped and cocoon style print parameters. The study will also address the amount of time, production, strength, composition, and overall performance of SS 316L printed material.

scholarly journals Peculiarities of Micro-Mechanical Behavior of 3D-Printed Aluminium Alloy: In Situ SEM Study

2021 ◽  
Author(s):  
Eugene S. Statnik ◽  
Kirill V. Nyaza ◽  
Alexey I. Salimon ◽  
Dmitry Ryabov ◽  
Alexander M. Korsunsky
Keyword(s):  
Mechanical Behavior ◽  
Aluminium Alloy ◽  
Cross Section ◽  
Complex Geometry ◽  
Image Correlation ◽  
Metal Solidification ◽  
Small Series ◽  
Dog Bone ◽  
3D Printed

3D-printed aluminium alloy fabrications made by selective laser melting (SLM) offer a promising route for the production of small series of custom-designed heat exchangers with complex geometry and shape and miniature size. Alloy composition and printing parameters need to be optimized to mitigate fabrication defects (pores and microcracks) and enhance the part performance. The deformation response needs to be studied with adequate characterization techniques at relevant dimensional scale capturing the peculiarities of micro-mechanical behavior relevant to the particular article and specimen dimensions. Purposefully designed Al-Si-Mg 3D-printable RS-333 alloy was investigated with a number of microscopy techniques including in situ mechanical testing with a Deben Microtest 1 kN stage integrated and synchronized with Tescan Vega3 SEM to acquire high resolution image datasets for Digital Image Correlation (DIC) analysis. Dog bone specimens were 3D-printed in different orientation of gauge zone cross-section with respect to the fast laser beam scanning and growth directions. This corresponds to varying local conditions of metal solidification and cooling. Specimens show variation in mechanical properties, namely, Young’s modulus (65…78 GPa), yield stress (80–150 MPa), ultimate tensile strength (115–225 MPa) and elongation at break (0,75–1,4 %). Furthermore, the failure localization and character was altered with the change of gauge cross-section orientation. DIC analysis allowed correct strain evaluation that overcame the load frame compliance effect and helped to identify the unevenness of deformation distribution (plasticity waves) that ultimately resulted in exceptionally high strain localization near the ultimate failure crack position.

Mechanical behavior and microstructure of 3D-printed carbon nanotubes-reinforced Cu composite

2021 ◽  
pp. 108651
Author(s):  
Qi Zhao ◽  
Xueping Gan ◽  
Chaoqiang Liu ◽  
Huiwen Xiong ◽  
Kechao Zhou
Keyword(s):  
Carbon Nanotubes ◽  
Mechanical Behavior ◽  
3D Printed
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