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Development of lunar regolith-based composite for - 3D printing via high-pressure extrusion system

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0745-8

Abstract: However, the in-situ 3D printing using raw lunar regolith consumes extremely high energyIn this work, we proposed a cost-effective melting extrusion system for lunar regolith-based compositeThe high-performance nylon and lunar regolith are uniformly pre-mixed in powder form with different weightregolith as well as maximize the loading ratio of in-situ resources of lunar regolith.High-pressure melt extrusion for lunar regolith composite can increase the effective loading fraction

Keywords： in-situ resource utilization     melt extrusion molding     lunar regolith-based composites    

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Printability and hardening performance of three-dimensionally-printed geopolymer based on lunar regolithsimulant for automated construction of lunar infrastructure

Frontiers of Structural and Civil Engineering doi: 10.1007/s11709-023-0003-0

Abstract: Using an in situ lunar regolith as a construction material in combination with 3D printing notonly reduces the weight of materials carried from the Earth but also improves the automation of lunarThis study aims to improve the printability of a geopolymer based on a BH-1 lunar regolith simulant,can adjust the printability without adding any additive, which can reduce the construction cost of lunarAfter curing under a simulated lunar environment, the 72-h flexural and compressive strengths of the

Keywords： geopolymer     lunar regolith simulant     3D printing     rheology     printability    

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Development of lunar regolith composite and structure via laser-assisted sintering

Frontiers of Mechanical Engineering doi: 10.1007/s11465-021-0662-2

Abstract: In this paper, a laser-assisted additive manufacturing process is developed to fabricate lunar regolithcomposites with PA12/SiO2 mixing powders.regolith composites.The maximum tensile strength of lunar regolith composites reaches 9.248 MPa, and the maximum depth ofThereafter, the mechanical properties of laser-sintered lunar regolith composites are implemented to

Keywords： in situ manufacturing     laser-assisted powder fusion process     mechanical properties     topological structure design    

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Study on theory and application of CE-1 microwave sounding lunar surface

iang Jingshan,Wang Zhenzhan,Li Yun

Strategic Study of CAE 2008, Volume 10, Issue 6,   Pages 16-22

Abstract: A microwave sounder, named Chang'E Lunar microwave sounder (CELMS) was used to detect regolith informationof the lunar surface.These models will finally used for retrieving lunar surface information on regolith depths.In this paper, we generally describe the theory on lunar regolith microwave radiative transfer, analysepermittivity distribution, underlying rock reflectivity, as well as other thermal properties of the regolith

Keywords： CE-1 lunar microwave sounder (CELMS)     remote sensing     lunar regolith     microwave transfer model    

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Numerical modeling of nonlinear deformation of polymer composites based on hyperelastic constitutive

Qingsheng YANG, Fang XU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 284-288 doi: 10.1007/s11465-009-0067-0

Abstract: Fiber reinforced polymer (FRP) composites exhibit nonlinear and hyperelastic characteristics under finiteThis paper investigates the macroscopic hyperelastic behavior of fiber reinforced polymer compositesusing a micromechanical model and finite deformation theory based on the hyperelastic constitutive lawNumerical examples are given to demonstrate hyperelastic behavior and deformation of the composites,of the distribution pattern of fibers are also investigated to model the mechanical behavior of FRP composites

Keywords： composites     hyperelastic     finite deformation     homogenization     micromechanics    

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Preparation and Characterization of High-Strength Geopolymer Based on BH-1 Lunar Soil Simulant with Low Article

Siqi Zhou, Chenghong Lu, Xingyi Zhu, Feng Li

Engineering 2021, Volume 7, Issue 11,   Pages 1631-1645 doi: 10.1016/j.eng.2020.10.016

Abstract:

The construction of a lunar base and habitation on the Moon has always been on researchers’Building materials used in in situ lunar resources are of great significance for saving expensive spaceIn this study, a new type of lunar soil simulant named Beihang (BH)-1 was developed.This research also synthesized a geopolymer based on BH-1 cured at simulated lunar atmospheric conditionsinvestigated the effect of supplementing aluminum (Al) sources on the enhancement of geopolymer strength based

Keywords： Space exploration     Lunar base     Geopolymer     Lunar soil simulant     Rheology    

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Optimization of the mechanical performance and damage failure characteristics of laminated compositesbased on fiber orientation

Frontiers of Structural and Civil Engineering   Pages 1357-1369 doi: 10.1007/s11709-023-0996-4

Abstract: In this study, the effect of fiber angle on the tensile load-bearing performance and damage failure characteristics of glass composite laminates was investigated experimentally, analytically, and numerically. The glass fabric in the laminate was perfectly aligned along the load direction (i.e., at 0°), offset at angles of 30° and 45°, or mixed in different directions (i.e., 0°/30° or 0°/45°). The composite laminates were fabricated using vacuum-assisted resin molding. The influence of fiber orientation angle on the mechanical properties and stiffness degradation of the laminates was studied via cyclic tensile strength tests. Furthermore, simulations have been conducted using finite element analysis and analytical approaches to evaluate the influence of fiber orientation on the mechanical performance of glass laminates. Experimental testing revealed that, although the composite laminates laid along the 0° direction exhibited the highest stiffness and strength, their structural performance deteriorated rapidly. We also determined that increasing the fiber offset angle (i.e., 30°) could optimize the mechanical properties and damage failure characteristics of glass laminates. The results of the numerical and analytical approaches demonstrated their ability to capture the mechanical behavior and damage failure modes of composite laminates with different fiber orientations, which may be used to prevent the catastrophic failures that occur in composite laminates.

Keywords： fiber orientation     composite laminates     stiffness degradation     analytical approaches     finite element analysis    

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Sustainable wood-based nanotechnologies for photocatalytic degradation of organic contaminants in aquatic

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1346-6

Abstract:

•Wood and its reassemblies are ideal substrates to develop novel photocatalysts.

Keywords： Wood     Nanocatalysts     Photodegradation     Organic contaminants     Composites    

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Research on bio-based degradable composites

Liu Xiaogang,Wang Li,Li Shizhong,Fan Chenyu

Strategic Study of CAE 2011, Volume 13, Issue 2,   Pages 90-95

Abstract: great expectation for its excellent mechanical properties and competitive price to petroleum–basedon status of biodegradable plastics and the research progress on starch/poly (lactic acid) and their composites, and gives a figure of the trend of technology development and industrialization on these bio-basedcomposites.

Keywords： progress     bio-based composites     degradable     starch     poly (lactic acid)    

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Opinion on Space Launch and Manned Lunar-landing

Zhang Zeming ,Jiang Yi ,Fu Debin

Strategic Study of CAE 2006, Volume 8, Issue 10,   Pages 37-41

Abstract:

The lunar-landing is the continuation of manned spaceflight engineering.

Keywords： lunar-landing     space launch     launch platform     lunar-landing orbit     technical route    

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Mixed mode properties of CNT reinforced composites using Arcan test rig

Jacob MUTHU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 4,   Pages 397-404 doi: 10.1007/s11709-015-0321-y

Abstract: Composite materials reinforced with carbon nanotubes were mechanical tested using Arcan test rig under Mode-I, Mode-II and mixed mode loading conditions to obtain their fracture properties. The butterfly composite specimens were fabricated with 0.02, 0.05 and 0.1 wt % CNTs. The polyester/CNT composite was fabricated using VRTM (Vacuum Resin Transfer Molding) where the CNTs were first functionalised to reach an optimum properties. Arcan test rig was designed and fabricated to work with the Shimadzu testing machine. The results show that the functionalised CNTs have improved the fracture behavior by acting as bridge between the cracked face. In addition, the fracture properties were not improved for the higher weight fraction of 0.1 wt% CNTs.

Keywords： CNT     composites     Arcan test rig     stress intensity factor    

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The Conceptual Design of Lunar Surface Environment Simulation System

Shi Xiaobo,Li Yunze,Huang Yong,Wang Jun

Strategic Study of CAE 2006, Volume 8, Issue 11,   Pages 48-52

Abstract:

Compared with the satellites and manned spaceships circling the earth, the spacecraft for lunar explorationin the design of spacecrafts and lunar rovers.A conceptual design of lunar surface environment simulation system was proposed.Most of the environmental factors, including lunar dust, geography, the compressibility and frictionaleffect of lunar regolith, hard vacuum, temperature variation, can be simulated simultaneously.

Keywords： lunar surface environment     lunar dust     environment simulation    

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Lunar surface physical temperature retrieved from the measurements by CE-1 lunar microwave sounder

Li Yun,Jiang Jingshan,Wang Zhenzhan,Zhang Dehai and Zhang Xiaohui

Strategic Study of CAE 2013, Volume 15, Issue 7,   Pages 106-112

Abstract: ;">In this paper, algorithms of retrieving physical temperature and effective temperature from CE-1 lunarThese retrievals provide important information for evaluating other lunar surface parameters.

Keywords： CELMS     lunar surface physical temperature     retrieve    

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Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0680-8

Abstract: Fiber-reinforced composites have become the preferred material in the fields of aviation and aerospacedamage formation mechanisms and suppression strategies in milling and grinding for the fiber-reinforced compositesspecific aspects and explore new area for achieving high precision surface machining of fiber-reinforced composites

Keywords： milling     grinding     fiber-reinforced composites     damage formation mechanism     delamination     material removal    

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Strengthening of the concrete face slabs of dams using sprayable strain-hardening fiber-reinforced cementitious composites

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 2,   Pages 145-160 doi: 10.1007/s11709-022-0806-4

Abstract: In this study, sprayable strain-hardening fiber-reinforced cementitious composites (FRCC) were applied

Keywords： strain-hardening cementitious composites     engineered cementitious composites     sprayable     shotcrete     strengthening    

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Title Author Date Type Operation

Development of lunar regolith-based composite for - 3D printing via high-pressure extrusion system

Journal Article

Printability and hardening performance of three-dimensionally-printed geopolymer based on lunar regolithsimulant for automated construction of lunar infrastructure

Journal Article

Development of lunar regolith composite and structure via laser-assisted sintering

Journal Article

Study on theory and application of CE-1 microwave sounding lunar surface

iang Jingshan,Wang Zhenzhan,Li Yun

Journal Article

Numerical modeling of nonlinear deformation of polymer composites based on hyperelastic constitutive

Qingsheng YANG, Fang XU

Journal Article

Preparation and Characterization of High-Strength Geopolymer Based on BH-1 Lunar Soil Simulant with Low

Siqi Zhou, Chenghong Lu, Xingyi Zhu, Feng Li

Journal Article

Optimization of the mechanical performance and damage failure characteristics of laminated compositesbased on fiber orientation

Journal Article

Sustainable wood-based nanotechnologies for photocatalytic degradation of organic contaminants in aquatic

Journal Article

Research on bio-based degradable composites

Liu Xiaogang,Wang Li,Li Shizhong,Fan Chenyu

Journal Article

Opinion on Space Launch and Manned Lunar-landing

Zhang Zeming ,Jiang Yi ,Fu Debin

Journal Article

Mixed mode properties of CNT reinforced composites using Arcan test rig

Jacob MUTHU

Journal Article

The Conceptual Design of Lunar Surface Environment Simulation System

Shi Xiaobo,Li Yunze,Huang Yong,Wang Jun

Journal Article

Lunar surface physical temperature retrieved from the measurements by CE-1 lunar microwave sounder

Li Yun,Jiang Jingshan,Wang Zhenzhan,Zhang Dehai and Zhang Xiaohui

Journal Article

Fiber-reinforced composites in milling and grinding: machining bottlenecks and advanced strategies

Journal Article

Strengthening of the concrete face slabs of dams using sprayable strain-hardening fiber-reinforced cementitious composites

Journal Article