Article
Polymer Science
Miroslav Cerny, Josef Petrus, Veronika Pavlinakova
Summary: This study presents a new mathematical approach to investigate the mechanical properties, composition, and structure of porous-filled reinforced composites. The proposed equations, based on a special mixing rule and correction parameter, effectively describe the mechanical behavior of these composites.
Article
Construction & Building Technology
Kin Ming Chan, Yuhong Wang
Summary: The tensile properties of asphalt binder are important for its performance and are necessary for material characterization, modeling, and simulation. However, the tensile relaxation modulus and spectrum are often not determined directly. This study developed a tensile relaxation test and computational approach to determine the modulus and spectrum, and the results showed robustness and reliability.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Engineering, Multidisciplinary
Sonja Kostic, Jasmina Miljojkovic, Goran Simunovic, Djordje Vukelic, Branko Tadic
Summary: This paper presents the results of theoretical and experimental research on the uncertainty in elastic modulus measurement using different types of tensile testing devices, and compares their results. Factors affecting the uncertainty in elastic modulus measurement are defined, and analytical limits for acceptable uncertainties are determined. The average uncertainties in elastic modulus are found to be 1.97% on a conventional tensile testing device with an extensometer, and 1.56% on a small laboratory tensile testing device. It is observed that the uncertainty in elastic modulus measurement is higher in the region of lower forces and small elongations, mainly due to imperfections in measuring instrumentation.
ENGINEERING SCIENCE AND TECHNOLOGY-AN INTERNATIONAL JOURNAL-JESTECH
(2022)
Article
Food Science & Technology
Liuke Liang, Aowen Xie, Haojie Yang, Na Li, Ping'an Ma, Shan Wei, Shuaibing Zhang, Yangyong Lv, Yuansen Hu
Summary: Lysine acetylation (Kac) undergoes changes during artificial ageing of wheat seeds, affecting protein metabolism, response to intracellular stress, and protein storage and processing. Additionally, acetylation affects the activity of ROS-scavenging enzymes, leading to a gradual decrease in the defense ability of wheat seeds.
Article
Materials Science, Multidisciplinary
Luis Alves, Ana Ramos, Maria G. Rasteiro, Carla Vitorino, Eduardo Ferraz, Paulo J. T. Ferreira, Maria L. Puertas, Jose A. F. Gamelas
Summary: Cellulose nanofibrils (CNFs) are promising nanomaterials for food packaging and printed electronics, offering environmentally friendly and cost-effective alternatives to petroleum-based polymers. By combining CNFs with other materials, such as clay minerals, composite materials with superior mechanical properties can be produced using either solvent casting or filtration + hot pressing methods, with the latter showing shorter production times and comparable gas barrier properties to net CNF films.
Article
Chemistry, Physical
Narayan Shirolkar, Prachi Patwardhan, Aowabin Rahman, Ashley Spear, Satish Kumar
Summary: The manufacturing of carbon fiber is a time-consuming and costly process, and the integration of machine learning and experimental techniques is crucial in understanding the processing-structure-property relationships. Research indicates that machine learning models can be used to approximate the effect of manufacturing process parameters on the mechanical properties of carbon fibers.
Article
Materials Science, Multidisciplinary
Franc Zupanic, Matej Steinacher, Sandi Zist, Tonica Boncina
Summary: The study investigated a novel Al-Mg-Si alloy with higher Si content, copper and zirconium, to improve strength while maintaining ductility. After T6 temper, the alloy showed significantly increased tensile strength and retained high elongation at fracture.
Article
Environmental Sciences
Matias S. Netto, Jordana Georgin, Dison S. P. Franco, Evandro S. Mallmann, Edson Luiz Foletto, Marcelo Godinho, Diana Pinto, Guilherme L. Dotto
Summary: Hydrochar prepared from Prunus serrulata bark through hydrothermal treatment showed high adsorption efficiency for removing atrazine from river waters, with low cost and high efficacy.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Thermodynamics
Wulff Possart, Bettina Zimmer
Summary: The chemical structure, polymer mobility, and mechanical properties of a cross-linked amorphous poly(ether urethane) (PU) were studied under different conditions. Water molecules primarily affect the PU in a physical manner, while chemical aging has a weaker and slower impact on the physical properties.
CONTINUUM MECHANICS AND THERMODYNAMICS
(2022)
Article
Nanoscience & Nanotechnology
C. Menapace, F. Bernard, M. Lusa, G. Ischia, G. Straffelini
Summary: Research has shown that using dual step and dual rate ageing (DRA) cycles can significantly improve the mechanical properties of 6060 Al alloy, characterized by fine precipitation particles. Additionally, the number and size of precipitates also influence the strain hardening and fracture behavior of the alloy.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Construction & Building Technology
Lin Fang, Quan Yuan, Bin Wu, Honglin Li, Mengyang Huang
Summary: Surface elasticity and residual stress significantly impact the effective properties of nanowires due to their high surface area-to-volume ratio. The effective Young's modulus decreases as the nanowire radius increases and eventually approaches the bulk value. The presence of positive or negative surface residual stresses alters the Young's modulus and shear modulus, while non-zero radial and circumferential strains further enhance the influence of surface moduli on the effective modulus.
ADVANCES IN CIVIL ENGINEERING
(2021)
Article
Agricultural Engineering
Somayeh Ghasemi, Amirhossein Espahbodi, Nima Gharib, Yasser Zare, Kyong Yop Rhee
Summary: This study analyzes the tensile modulus of nanocellulose-reinforced composites and reveals the effects of nanocellulose treatment, radius, and interphase modulus on the relative modulus. The results show that nanocellulose treatment increases the modulus and thickness of the interphase, and the nanocellulose modulus and radius significantly affect the relative modulus, while the interphase modulus only has a significant effect within a certain range.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Biochemistry & Molecular Biology
Tong Chen, Jun Li, Jun Xu, Yi Gao, Shiyun Zhu, Bin Wang, Guangdong Ying
Summary: This study aimed to enhance the ductility and compatibility of PLA composite film by incorporating nanocellulose. The results showed that the use of acetylated nanocellulose improved the mechanical performance of hydrophobic PLA matrix. Compared to cellulose nanocrystals, the inclusion of acetylated nanocellulose significantly increased the tensile stress of the composite films. Additionally, the PLA composite films with acetylated nanocellulose exhibited better ductility and compatibility. Therefore, acetylated nanocellulose was identified as an excellent reinforcing agent for improving the properties of PLA composite film, showing promising potential for replacing some petrochemical plastics in real-life applications.
Article
Materials Science, Multidisciplinary
Marcus Vinicius Tavares da Costa, Lengwan Li, Lars A. Berglund
Summary: In this study, thin clay coatings were deposited on polymeric materials using water dispersion technique to improve the gas barrier properties and fire retardancy. The mechanical properties of the coatings were difficult to assess due to their thinness (1 μm). In-situ tests using a micro tensile stage in a scanning electron microscope revealed a thickness-dependent microcracking mechanism, and Weibull parameters for coating fracture were extracted. A micromechanical finite element formulation provided values for interfacial shear strength (5 MPa) and interfacial fracture toughness (1 J/m2). The method can be extended to study other combinations of brittle coating-ductile substrates.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Physical
Yalei Bai, Tong Zhao, Chengxu Yuan, Weidong Liu, Haichao Zhang, Lei Yang, Chongmin She
Summary: The study introduces a novel chiral cellular structure with extremely low tensile and shear moduli, exhibiting tensile-shear and shear-tensile coupling effects that can be beneficial for engineering applications.
Article
Engineering, Aerospace
Anand Pai, Arastu Sharma, Irene Mary Eby, Chandrakant R. Kini, Satish B. Shenoy
Summary: Orbital debris poses a constant threat to spacecraft and satellites, and it has become a growing concern with the increasing number of space objects. To protect against small debris or micrometeoroid orbital debris (MMODs), Whipple shields made of impact-resistant materials are used. This study used numerical simulations to investigate the damage and deformation behavior caused by hypervelocity impacts on monolithic and coated Whipple shields. The simulations were conducted using the AUTODYN(R) module of the ANSYS(R) finite element software at velocities of 3.5 km/s and 5.5 km/s.
Review
Computer Science, Interdisciplinary Applications
Kamat Harishkumar, Kini R. Chandrakant, Shenoy B. Satish
Summary: Fluid film bearings are widely used in high-speed industrial machineries and have been extensively studied using numerical methods. This paper reviews the various Computational Fluid Dynamics and Fluid-Structure Interaction techniques used to solve the flow equations for fluid film bearings, and compares the computed performance parameters.
ARCHIVES OF COMPUTATIONAL METHODS IN ENGINEERING
(2023)
Article
Geography, Physical
K. R. Akshatha, A. K. Karunakar, B. Satish Shenoy, K. Phani Pavan, Chinmay V. Dhareshwar, Dennis George Johnson
Summary: Intelligent UAV video analysis has gained attention for its potential in computer vision applications. In order to address the challenge of small object detection, a Manipal-UAV person detection dataset was created, consisting of images captured from UAVs in varying conditions. The dataset provides a benchmark for evaluating state-of-the-art object detection algorithms on small person objects in aerial view scenarios. The dataset is publicly available for researchers to advance UAV and small object detection research.
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Celine Gutmann, Numa Shaikh, B. Satish Shenoy, N. Shaymasunder Bhat, Laxmikant G. Keni, K. N. Chethan
Summary: The hip joint helps transfer weight from the upper body to the lower body, and artificial hip implants can replace degenerated hips. Wear between the joints is the primary cause of implant loosening, which can occur for various reasons. Small design changes can greatly improve the lifespan of the implant, and a decrease in TTR radius leads to a decrease in wear rate.
BIOMEDICAL PHYSICS & ENGINEERING EXPRESS
(2023)
Article
Engineering, Multidisciplinary
John Valerian Corda, B. Satish Shenoy, Kamarul Arifin Ahmad, Leslie Lewis, K. Prakashini, Anoop Rao, Mohammad Zuber
Summary: This study aims to evaluate the flow parameters and particle deposition parameters of the nasal cavity in neonatal and infant populations. The results show that neonatal nasal cavities have higher velocity, pressure, and deposition efficiency than infant nasal cavities. These findings can guide the administration of aerosol-based medications in patients of different ages.
INTERNATIONAL JOURNAL OF MODELLING AND SIMULATION
(2023)
Article
Engineering, Civil
Anand Pai, Chandrakant R. Kini, Sriharsha Hegde, B. Satish Shenoy
Summary: Fiber metal laminates (FMLs) for blast and ballistic resistance applications require ballistic grade plies like aramid (Kevlar) and ultra-high molecular weight polyethylene (Spectra) as supporting layers, stacked in different orders based on functional grading. In this study, five FML sequences consisting of AA6061-T6, aramid, ultra-high molecular weight polyethylene, and paperboard were developed, with the novelty of layering based on shock impedance. Mechanical and damping performance were evaluated using various metrics, and the FML sequences BRSP-II and BRSP-IV demonstrated the best performance when a low-impedance ply (paperboard layer) was placed before the AA6061-T6 rear skin.
THIN-WALLED STRUCTURES
(2023)
Review
Engineering, Multidisciplinary
Mohd. Khalid Zafeer, Roopa Prabhu, Sithara Rao, G. T. Mahesha, K. Subrahmanya Bhat
Summary: The increasing concern for ecological preservation has led to the development of new and innovative green materials, with a particular focus on natural polymers. Sugarcane Bagasse fibre has been extensively chemically modified to enhance its potential for various fields of interest. The advantages of sugarcane bagasse fibres, such as abundance, biodegradability, and high mechanical properties, make it a valuable by-product for different applications. This review provides an overview of the surface-modified sugarcane bagasse and its applications in various fields, including packaging and fillers. The review also discusses the research advancements and applications of sugarcane bagasse in reinforced composites.
COGENT ENGINEERING
(2023)
Review
Engineering, Civil
Anand Pai, Marcos Rodriguez-Millan, Masuhiro Beppu, Borja Valverde-Marcos, B. Satish Shenoy
Summary: This paper reviews the latest experimental techniques for characterizing the impact resistance, shock energy absorption, high strain-rate responses and endurance of materials used for shielding in blast and ballistic impact scenarios. It provides insights into various testing methods and strategies for high-performing shielding configurations.
THIN-WALLED STRUCTURES
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
John Valerian Corda, K. N. Chethan, N. Shyamasunder Bhat, Sawan Shetty, B. Satish Shenoy, Mohammad Zuber
Summary: This study investigates the impact of patient-specific dynamic loadings on the evaluation of hip implants and explores the effects of different materials and profiles on stress and displacement. The results suggest that using UHMWPE as the acetabular cup material can effectively prevent squeaking after replacement.
BIOMEDICAL PHYSICS & ENGINEERING EXPRESS
(2023)
Article
Engineering, Mechanical
Ragavanantham Shanmugam, Satish Shenoy Baloor, Ugur Koklu, Ashwin Polishetty, Gururaj Bolar
Summary: The study evaluates the use of helical milling in hole processing for titanium alloys. The results show that helical milling can reduce machining temperature, improve surface roughness, and decrease the size of exit burrs compared to traditional drilling. However, helical-milled holes exhibit higher subsurface microhardness than conventionally drilled holes. The process variables have a significant impact on machining temperature.
Article
Nanoscience & Nanotechnology
Nur Marini Zainal Abidin, Mohamed Thariq Hameed Sultan, Ain Umaira Md Shah, Farah Syazwani Shahar, Muhammad Imran Najeeb, Mohd Radzi Ali, Adi Azriff Basri, Satish Shenoy Baloor, Milan Gaff, David Hui
Summary: This study aims to investigate the use of hybrid composite materials with honeycomb structure in aircraft structures. By replacing synthetic fiber with natural fiber and using a honeycomb core, the mechanical strength of the composites was analyzed. The results showed promising properties for the newly developed GKHKG composite, making it suitable for semi-structural and structural light-weight applications.
REVIEWS ON ADVANCED MATERIALS SCIENCE
(2023)
Review
Materials Science, Multidisciplinary
Mohd. Khalid Zafeer, Rachel Alveera Menezes, H. Venkatachalam, K. Subrahmanya Bhat
Summary: The effective management of agro-industrial waste is crucial for pollution control. Sugarcane bagasse can be converted into biochar and other value-added products to achieve sustainable utilization.
EMERGENT MATERIALS
(2023)
Article
Multidisciplinary Sciences
Anand Pai, Marcos Rodriguez-Millan, Chandrakant R. Kini, B. Satish Shenoy
Summary: This study aims to develop hybrid Fiber Metal Laminates (FMLs) for shock shielding. Shock experiments and numerical simulations are conducted using a multi-layered FML configuration with different materials. The results reveal a significant influence of core layer arrangement on the deformation of FMLs.
SCIENTIFIC REPORTS
(2023)
Article
Thermodynamics
Jayakrishnan Radhakrishnan, Surya Sridhar, Mohammed Zuber, Eddie Y. K. Ng, B. Satish Shenoy
Summary: This study focuses on the conceptual design optimization of a Contra-Rotating VAWT (CR-VAWT) using Taguchi method and CFD. The results indicate that blade height has the greatest impact on the performance of CR-VAWT, while the number of blades has the least impact. Proper selection of design parameters can lead to better performance of CR-VAWT compared to conventional VAWT.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Multidisciplinary Sciences
Anand Pai, Marcos Rodriguez-Millan, Chandrakant R. Kini, Ravindra Mallya, Chandrakantha Bekal, Suhas Yeshwant Nayak, Satish B. Shenoy
Summary: Fiber-metal laminates (FMLs) have significant potential in various applications and are particularly crucial for aircraft structures exposed to shock wave and high velocity impacts. This study focuses on developing custom shielding laminates and analyzing the impact of shock impedance tuning on the behavior of FMLs at high strain rates. The results show improved energy absorption and transmission loss for certain laminates, indicating the effectiveness of the shock impedance matching approach.
SCIENTIFIC REPORTS
(2023)
