Fiberboard Made from Scrap Denim: Characterization of its Properties by Effective Bulk Modulus Elastography (open access)

Fiberboard Made from Scrap Denim: Characterization of its Properties by Effective Bulk Modulus Elastography

Article describes how fiberboards from scrap denim were fabricated using two different resins, melamine urea formaldehyde (MUF) and polymeric methylene diphenyl diisocyanate (pMDI). Resin content and MUF-pMDI weight ratio were studied. Physical and mechanical tests determined the modulus of elasticity (MOE), modulus of rupture (MOR), internal bond (IB), thickness swell (TS), and water absorption (WA).
Date: March 20, 2023
Creator: Shi, Sheldon; Cui, Zhiying; Jin, Yuqi; Smith, Lee M.; Wu, H. Felix & Neogi, Arup
System: The UNT Digital Library
High-Fidelity Conjugate Heat Transfer Simulation of Micro-Channel Heat Exchanger (open access)

High-Fidelity Conjugate Heat Transfer Simulation of Micro-Channel Heat Exchanger

Article describes how high-fidelity conjugate heat transfer simulations are used to model a micro-channel heat exchanger (MCHE) in a crossflow to study its thermal-hydraulic performance. Three different microchannel geometries, namely circular, triangular, and square with louver-shaped fins, are considered.
Date: July 1, 2023
Creator: Ahmed, Hossain; Sadat, Hamid & Nasrazadani, Seifollah
System: The UNT Digital Library
Comparison of Thermal Effectiveness and Crevice Corrosion Risk of Fin Geometry on All-Aluminum Microchannel Heat Exchangers (open access)

Comparison of Thermal Effectiveness and Crevice Corrosion Risk of Fin Geometry on All-Aluminum Microchannel Heat Exchangers

Article all-aluminum microchannel heat exchangers have recently gained popularity in the heating, ventilation, and air conditioning industry. Despite their attractive thermal performance design, these heat exchangers make coils used in automotive, commercial, and residential applications prone to crevice corrosion. This study uses high-fidelity conjugate heat transfer simulations to model a micro channel heat exchanger system that includes fins and tubes with crossflow to compare their thermal effectiveness to gain insight into potential crevice corrosion of the MCHE alloy.
Date: June 12, 2023
Creator: Ahmed, Hossain; Nasrazadani, Seifollah & Sadat, Hamid
System: The UNT Digital Library
Thermal heat transfer and energy modeling through incorporation of phase change materials (PCMs) into polyurethane foam (open access)

Thermal heat transfer and energy modeling through incorporation of phase change materials (PCMs) into polyurethane foam

Article describes how decreasing HVAC energy consumption through insulation effectiveness enables low energy use, low carbon emissions, and high thermal comfort in sustainable buildings. In this paper, two PCMs with transition temperature above and below the outdoor temperature incorporated in highly porous flexible polyurethane foam were evaluated using a one-dimensional (1D) foam core panel built in COMSOL Multiphysics®.
Date: June 3, 2023
Creator: Nandy, Aditi; Houl, Yassine; Zhao, Weihuan & D'Souza, Nandika Anne, 1967-
System: The UNT Digital Library
Preparation of a strong, high prepressing intensity, and multifunction soybean protein adhesive by using hyperbranched functional polymer (open access)

Preparation of a strong, high prepressing intensity, and multifunction soybean protein adhesive by using hyperbranched functional polymer

Article states that the preparation of a soybean protein adhesive with good prepressing intensity, mildew proof, flame retardant, and high bond strength are conducive to the wide application of a soybean protein adhesive, which is important but challenging for the wood-based panel industry. In this study, two hyperbranched functional polymers were designed.
Date: January 9, 2023
Creator: Liu, Zheng; Liu, Tao; Zhang, Jieyu; Li, Yue; Luo, Jing; Li, Jianzhang et al.
System: The UNT Digital Library
Anthropo-fidelic behavior of elastic-plastic lattice structures (open access)

Anthropo-fidelic behavior of elastic-plastic lattice structures

Article discusses how vat photopolymerization is used to construct triply periodic minimal surfaces (TPMS) to match human heel pad stiffness. This work substantiates the suitability of latticed models to reach the stiffness of the heel pad chambers.
Date: February 24, 2023
Creator: Haney, Christopher W. & Siller Carrillo, Héctor Rafael
System: The UNT Digital Library
Polypropylene-Based Polymer Locking Ligation System Manufacturing by the Ultrasonic Micromolding Process (open access)

Polypropylene-Based Polymer Locking Ligation System Manufacturing by the Ultrasonic Micromolding Process

Article describes how in recent years, there has been a growing demand for biocompatible medical devices on the microscale. The authors of the article extensively investigated various processing parameters such as vibration amplitude, temperature, and injection velocity.
Date: July 15, 2023
Creator: Elías-Grajeda, Alex; Vázquez-Lepe, Elisa; Siller Carrillo, Héctor Rafael; Perales-Martínez, Imperio Anel; Resédiz-Hernández, Emiliano; Ramírez-Herrera, Claudio Angélica et al.
System: The UNT Digital Library
Numerical Analysis of Cambered Plate Configurations under Low Reynolds Numbers and at a Low-Density Condition (open access)

Numerical Analysis of Cambered Plate Configurations under Low Reynolds Numbers and at a Low-Density Condition

Article discusses how, after one year of operation, the Ingenuity rotorcraft and the Perseverance rover continue their exploration missions on Mars. Succeeding the technology demonstration phase, by proving its flight capabilities, Ingenuity transitioned to a new mission stage to explore modes of flight exploration for future scouting missions. The author's research intends to analyze, using numerical simulations, the aerodynamic conditions such as those experienced by Ingenuity during its flight missions.
Date: June 27, 2023
Creator: Saez, Aleandro; Manzo, Maurizio & Ciarcià, Marco
System: The UNT Digital Library
Laser printed amorphous magnesium alloy: Microstructure, mechanical properties, and degradation behavior (open access)

Laser printed amorphous magnesium alloy: Microstructure, mechanical properties, and degradation behavior

Article describes how, amorphous magnesium alloy, especially Mg-Zn-Ca series, has been receiving continuous attention in biomedical field, because of its favorable corrosion resistance, suitable modulus and biocompatibility. In this work, laser powder bed fusing with unique characteristics of rapid solidification and layer-by-layer fashion was used to fabricate bulk Mg-Zn-Ca and Mg-Zn-Ca-Y amorphous parts.
Date: November 23, 2023
Creator: Chen, Cheng; Li, Shaoyu; Ling, Chenrong; Yang, Youwen; Gao, Chengde; Li, Yageng et al.
System: The UNT Digital Library
Investigation on drying kinetics analysis of gooseberry slices dried under open sun (open access)

Investigation on drying kinetics analysis of gooseberry slices dried under open sun

Article describes an experimental analysis of the drying behavior of gooseberry slices dried in the open sun. The authors used the hot air dryer method, and found that the moisture content of gooseberry slices in their initial condition was estimated to be 87.81% wet-basis.
Date: October 20, 2023
Creator: Patel, Vijay; Judal, K. B.; Panchal, Hitesh; Singh, Bharat; Jomde, Amit; Kumar, Abhinav et al.
System: The UNT Digital Library
The Interface Strengthening of Multi-Walled Carbon Nanotubes/Polylactic Acid Composites via the In-Loop Hybrid Manufacturing Method (open access)

The Interface Strengthening of Multi-Walled Carbon Nanotubes/Polylactic Acid Composites via the In-Loop Hybrid Manufacturing Method

Article describes how in this study, a new in-loop hybrid manufacturing method is proposed for fabricating multi-walled carbon nanotube (MWCNTs)/polylactic acid (PLA) composites. Molecular dynamics simulations were conducted in conjunction with experiments to reveal the mechanism of the proposed method for improving the interfacial performance of MWCNTs/PLA.
Date: November 16, 2023
Creator: Li, Hongbin; Jiang, Zhuang; Li, Zhihua; Peng, Yubao; Zhang, Qiushuang & Xiao, Xinyi
System: The UNT Digital Library
Properties of Hyper-Elastic-Graded Triply Periodic Minimal Surfaces (open access)

Properties of Hyper-Elastic-Graded Triply Periodic Minimal Surfaces

Article describes how the mechanical behaviors of three distinct lattice structures-Diamond, Gyroid, and Schwarz-synthesized through vat polymerization were meticulously analyzed. This study aimed to elucidate the intricacies of these structures in terms of their stress-strain responses.
Date: November 21, 2023
Creator: Haney, Christopher W. & Siller Carrillo, Héctor Rafael
System: The UNT Digital Library