A Comprehensive Experimental Study on Mechanical Behavior, Microstructure and Transport Properties of 3D-printed Rock Analogs

Song, Rui; Wang, Yao; Ishutov, Sergey; Zambrano-Narváez, Gonzalo; Hodder, Kevin; Chalaturnyk, Rick; Sun, Shuyu; Liu, Jianjun; Gamage, Ranjith Pathegama

doi:10.1007/s00603-020-02239-4

Cited by 74 publications

(40 citation statements)

References 68 publications

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“…BJ-AM is a method of 3D printing that utilizes a print head to jet a finite amount of binding agent (cross-linked polymer "cement") onto a loose powder bed [3]. The use of BJ-AM to fabricate rock models is becoming more popular as a tool to characterize natural porous media and grain texture, since BJ-AM allows for the creation of specimens in a repeatable fashion [4][5][6][7]. However, most studies are limited to BJ-AM with gypsum, which does not exhibit the same mechanical properties as silica sand [8].…”

Section: Introductionmentioning

confidence: 99%

Increasing Density of 3D-Printed Sandstone through Compaction

et al. 2022

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The geomechanical and transport properties of rocks are of great importance to geoscience and engineering, as these properties provide responses to external stresses and flow regimes in the subsurface. Typically, experiments conducted on cores from reservoir formations have a degree of uncertainty, due to the heterogeneous characteristics of rock samples. To combat this uncertainty, binder-jet additive manufacturing (3D printing) is an emerging technology to characterize natural porous media in a repeatable fashion. In this study, the 3D printing sandstone analogue involved sand powder and organic binder to mimic silica grains and cement in natural sandstone. The use of compaction rollers and the adjustment of printing parameters allowed one to test how the porosity and strength of 3D-printed samples can replicate the transport and geomechanical properties of natural sandstone. The densities of samples were increased by ~15% and compressive strength by ~65% with the use of the larger roller. This is a promising alternative to experimental testing to calibrate numerical models in geoscience and engineering. The significance of this approach is to allow for customizable porosity, permeability, and strength in rock samples, while preserving scarce natural rock samples.

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Section: Introductionmentioning

confidence: 99%

Increasing Density of 3D-Printed Sandstone through Compaction

et al. 2022

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“…Examples of these can be geometries that are impossible or near impossible to fabricate with traditional manufacturing techniques, where shape, hollowness, and porosity combine to allow parts with precise customized material properties [ 49 , 50 , 51 , 52 , 53 , 54 ]. By controlling the shape, hollowness, and porosity of an additively manufactured product, transport properties such as diffusion, thermal conductivity, and mechanical response can be governed [ 55 , 56 ].…”

Section: Introductionmentioning

confidence: 99%

Tuning the 3D Printability and Thermomechanical Properties of Radiation Shields

et al. 2021

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Additive manufacturing, with its rapid advances in materials science, allows for researchers and companies to have the ability to create novel formulations and final parts that would have been difficult or near impossible to fabricate with traditional manufacturing methods. One such 3D printing technology, direct ink writing, is especially advantageous in fields requiring customizable parts with high amounts of functional fillers. Nuclear technology is a prime example of a field that necessitates new material design with regard to unique parts that also provide radiation shielding. Indeed, much effort has been focused on developing new rigid radiation shielding components, but DIW remains a less explored technology with a lot of potential for nuclear applications. In this study, DIW formulations that can behave as radiation shields were developed and were printed with varying amounts of porosity to tune the thermomechanical performance.

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“…In 2011, Kor Ecological Company launched the first car whose surface and parts were manufactured using 3DP. In 2013, British researchers printed embryonic stem cells and similar biological tissues Young's modulus at about 1.8 GPa Young's modulus at about 5 GPa [80] [81]…”

Section: D Printersmentioning

confidence: 99%

Application of 3D Printing Technology in the Mechanical Testing of Complex Structural Rock Masses

et al. 2021

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In the engineering of underground construction, the discontinuous structures in rock mass have important influences on the mechanical behaviors of the subsurface of rock mass. The acquisition of mechanical parameters is the basis of rock mass engineering design, construction, safety, and stability evaluation. However, the mechanical parameters and failure characteristics of the same rock mass under different mechanical conditions cannot be obtained due to the limitations of specimen preparation techniques. In recent years, with the continuous development of 3D printing (3DP) technology, it has been successfully applied to the repetitive preparation of rock mass samples. The combinations of 3DP and other techniques, such as 3D scanning and CT scanning, provided a new approach to study the mechanical behavior of complex structural rock masses. In this study, through a comprehensive review of the technical progress, equipment situation, application fields, and challenges of the use of 3DP technology, the following conclusions were obtained: (1) 3DP technology has advantages over traditional rock mass specimen preparation techniques, and the verification of test results using 3D printed samples shows that the 3DP has broad application prospects in geotechnical engineering. (2) The combination of 3DP and other advanced techniques can be used to achieve the accurate reconstruction of complex structural rock masses and to obtain the mechanical and failure characteristics of the same rock mass structure under different mechanical boundary conditions. (3) The development of 3DP materials with high strength, high brittleness, and low ductility has become the major bottleneck in the application of 3DP in geotechnical engineering. (4) 3D printers need to meet the high precision and large size requirements while also having high strength and long-term printing ability. The development of 3D printers that can print different types of materials is also an important aspect of the application of 3DP in geotechnical engineering.

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A Comprehensive Experimental Study on Mechanical Behavior, Microstructure and Transport Properties of 3D-printed Rock Analogs

Cited by 74 publications

References 68 publications

Increasing Density of 3D-Printed Sandstone through Compaction

Increasing Density of 3D-Printed Sandstone through Compaction

Tuning the 3D Printability and Thermomechanical Properties of Radiation Shields

Application of 3D Printing Technology in the Mechanical Testing of Complex Structural Rock Masses

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