Article
Engineering, Mechanical
Urbi Pal, Piyas Palit, Prabhash Gokarn, Samiran Kanrar, Anup Kumar
Summary: This study investigated the premature failure of disc springs in a side arm changer of a wagon tippler in an integrated steel plant, and proposed solutions that led to an increase in the spring life. Various techniques were used to determine the cause of failure and relate it to expected fatigue life.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Engineering, Civil
Abbas Divani, Jamshid Mohammadi
Summary: This paper presents the further development of a spring mechanical system, including the derivation of equations for determining system parameters based on material properties, the development of applications for deriving fatigue life relations considering the ratio of minimum to maximum stress, and the extension of the model to incorporate hysteresis behavior under cyclic loading.
ENGINEERING STRUCTURES
(2022)
Article
Mechanics
Luigi Solazzi, Andrea Buffoli
Summary: The study demonstrates that hydraulic cylinders made of composite materials perform similarly to those made of structural steel in terms of safety factor, with a weight reduction of about 87%.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Mechanical
Guang Cheng, Kaiyuan Chen, Yu Zhang, Yuanchang Chen
Summary: Leaf spring is commonly used in commercial vehicles for suspension systems, but in this study, a failure phenomenon was observed due to fatigue fracture on the companion spring leaf. Surface decarbonization and defects were found to be the cause of fatigue fracture initiation. Finite element simulations showed the influence of decarbonization layer and surface defects. Additional surface treatments or installation of rubber pads between each leaf can enhance the durability of the leaf spring.
ENGINEERING FAILURE ANALYSIS
(2022)
Article
Engineering, Mechanical
Steven J. Lorenz, Farshid Sadeghi, Hitesh K. Trivedi, Lewis Rosado, Mathew S. Kirsch, Chinpei Wang
Summary: In this study, a CDM FE model was developed to investigate the effects of surface roughness on RCF life, using optical surface profilometer to measure roughness of deep groove bearings. The results showed that as roughness amplitude increases or lambda ratio decreases, fatigue lives decrease for various frequencies. Subsurface failure fatigue lives are reduced with increasing roughness frequency, regardless of amplitude or Hertzian pressure. The investigation results were used to develop surface roughness effects for RCF life equations in rolling element bearing applications.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Engineering, Manufacturing
Martin Lesueur, Thomas Poulet, Manolis Veveakis
Summary: This study proposes a method to predict the yield strength of porous materials using numerical simulations based on internal structure geometry, reducing the need for laboratory experiments. The influence of internal geometry on yield strength can be effectively retrieved through finite element computations and simple elasto-plastic models.
ADDITIVE MANUFACTURING
(2021)
Article
Materials Science, Multidisciplinary
R. Liu, P. Zhang, Z. J. Zhang, B. Wang, Z. F. Zhang
Summary: In this study, a theoretical fatigue model named Y-T-F model is proposed for efficient fatigue strength prediction, which exhibits both generality and accuracy through verification with fatigue strength data covering various kinds of metallic materials and loading conditions. The Y-T-F model not only provides a brief relationship among yield strength, tensile strength, and fatigue strength, but also deduces an analytical formula of fatigue strength continuously changing with materials strengthening.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Weiqi Du, Shuxin Li, Yuanxin Luo
Summary: This paper proposes a systematic framework to simulate the scatter of structure's fatigue life, using cyclic plastic model coupled with fatigue damage for prediction, parameters' sampling strategy to consider material variability, support vector machine combined with Monte Carlo simulation to assess structure's failure probability, and subset simulation modification for small failure probability problems. A numerical example of three-layer extrusion container demonstrates the sampling procedure of material variability when experimental data of material is limit.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Engineering, Mechanical
W. W. Zhang, P. Liu, J. H. Fang, J. L. Xu
Summary: This study successfully weakened the elastic hysteresis effect of leaf spring and increased its fatigue life through structural optimization to reduce stress concentration. Experimental results showed a significant decrease in the maximum deflection deviation of the optimal leaf spring, with a predicted fatigue life ten times higher than the original design.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART E-JOURNAL OF PROCESS MECHANICAL ENGINEERING
(2021)
Article
Engineering, Mechanical
M. C. Ruy, W. W. Bose Filho, T. J. A. Doel, C. O. F. T. Ruchert
Summary: This study aims to investigate the effects of shot peening at room temperature on the fatigue performance of SAE 5160 leaf spring steel used in the automotive industry. The experiments show that shot peening at higher temperatures leads to increased surface roughness and decreased residual stress levels. The residual stress values increase for temperatures up to 100 degrees Celsius and decrease continuously for temperatures above this.
JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING
(2023)
Article
Engineering, Mechanical
Kona Veera Ganesh, Md Rushdie Ibne Islam, Puneet Kumar Patra, Karl Patrick Travis
Summary: In this paper, a pseudo-spring-based Eulerian form of SPH is adopted to model mode-I fatigue crack propagation. By stopping the interactions between the crack front particle and its neighbors with the largest axial stresses, the framework can accurately determine stress intensity factors and capture the fatigue crack path and fatigue life of different specimens.
INTERNATIONAL JOURNAL OF FATIGUE
(2022)
Article
Materials Science, Multidisciplinary
Jonathan B. Russ, Richard L. Li, Abigail R. Herschman, Haim Waisman, Vijay Vedula, Jeffrey W. Kysar, David Kalfa
Summary: The text describes a method for optimizing the design of cardiovascular stents, specifically for use in pediatric balloon-expandable prosthetic heart valves. By focusing on a particular design and proposing an appropriate stent to counteract radial retraction of the valved region, the goal is to maintain the desired diameter of the device after a single dilation procedure. The finite element method is used to compute performance metrics and failure criteria, leading to the identification of a single optimal stent design through the use of surrogate models and objective function optimization.
MATERIALS & DESIGN
(2021)
Article
Engineering, Mechanical
Gustav Hultgren, Rami Mansour, Zuheir Barsoum
Summary: Progress in developing digital quality assurance systems has enabled accurate measurement of local geometry and its variation in welded joints, leading to the establishment of new relations between geometric variations and fatigue. A probabilistic model based on actual weld geometry has been presented, allowing for determination of representative stresses for both the complete weld and sections of the weld. Calibration of the model using fatigue-tested specimens demonstrates reduced variation in SN-diagrams compared to nominal stress methods when significant weld geometry variations are present.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Multidisciplinary Sciences
Ahmad Serjouei, Shukri Afazov
Summary: This work develops a predictive model for S-N curves that considers the effects of different metal laser-based additive manufacturing and post-processing technologies on fatigue behavior. The proposed model has been demonstrated to accurately capture the effects of induced defects and mean stress. It is valuable for fatigue assessment of AM 316L stainless steel and has the potential to be extended to other AM materials.
Article
Metallurgy & Metallurgical Engineering
Anna Wildeis, Hans-Juergen Christ, Robert Brandt, Matthias Thimm, Claus-Peter Fritzen
Summary: Short crack propagation in a martensitic spring steel is investigated through in situ fatigue tests and crystallographic analysis, revealing that most cracks initiate at or near prior austenite grain boundaries. The crack density shows a strong dependence on the applied stress amplitude.
STEEL RESEARCH INTERNATIONAL
(2021)
Article
Food Science & Technology
Saddam Hussain, Santanu Malakar, Vinkel Kumar Arora
Summary: Extrusion-based 3D food printing is a digitally controlled process that greatly impacts material characteristics and printer control parameters, with recent research focusing on technical challenges such as printing stability and post-processing. The potential for customization and future research developments in 3D food printing have been highlighted.
FOOD ENGINEERING REVIEWS
(2022)
Article
Food Science & Technology
Samandeep Kaur, Priyanka Dhurve, Vinkel Kumar Arora
Summary: Muskmelon seeds have the potential to be a valuable source of bioactive compounds, with temperature having a significant impact on the retention of these compounds when dried in a vibro-fluidized bed dryer. The optimal conditions for maximum retention of bioactive compounds were identified, highlighting the seeds' potential as a nutritional source in the food and pharmaceutical industries.
JOURNAL OF FOOD PROCESSING AND PRESERVATION
(2022)
Article
Energy & Fuels
Santanu Malakar, Masud Alam, Vinkel Kumar Arora
Summary: The research found that the ETSD performed better than sun drying in terms of drying effectiveness for beetroot slices, with a shorter drying time and better retention of quality attributes.
Article
Engineering, Mechanical
Vinay Kumar Yadav, Punit Kumar, Gian Bhushan
Summary: The purpose of this research is to demonstrate the use of a new and efficient population-based algorithm, called Heat Transfer Search (HTS), in the optimization of an active magnetic bearing (AMB) system. The findings reveal that the HTS algorithm achieves around 23% lower bearing volume compared to other popular optimization techniques such as Genetic Algorithms (GA) and Pattern Search (PS). Additionally, the study highlights Supermendur as the best magnetic core material for the AMB system optimization.
AUSTRALIAN JOURNAL OF MECHANICAL ENGINEERING
(2023)
Article
Materials Science, Composites
Iti Dikshit, Gian Bhushan
Summary: In this study, a novel composite consisting of carbon, jute, and porcine bone powder was fabricated using compression molding techniques. By optimizing the parameters and treating the jute fibers, an improvement in tensile strength and impact strength of the composite material was achieved.
POLYMER COMPOSITES
(2022)
Article
Food Science & Technology
Shweta Suri, Anupama Singh, Prabhat K. Nema, Santanu Malakar, Vinkel Kumar Arora
Summary: This study explored the effects of different drying methods on sweet lime peels. The results showed that infrared drying was the best method for preserving nutrients, while vacuum drying retained the color well. The dried peels exhibited significantly increased antioxidant activity, and the presence of phenols was confirmed through FTIR spectroscopy.
Article
Engineering, Manufacturing
Iti Dikshit, Gian Bhushan
Summary: In this study, a novel composite was prepared using porcine bone powder and alkali-treated jute fiber, and the specific wear was investigated. The results showed that the sliding distance had the most significant impact on specific wear, followed by normal load, and sliding velocity had the least influence.
INTERNATIONAL JOURNAL OF INTERACTIVE DESIGN AND MANUFACTURING - IJIDEM
(2023)
Article
Engineering, Chemical
Santanu Malakar, Priyanka Dhurve, Vinkel Kumar Arora
Summary: This study aims to develop a new infrared drying system and optimize the ultrasound-assisted osmotic dehydration process of garlic slices. RSM and ANN methods were used to model and optimize the process parameters. The factors of sonication time and osmotic concentration had significant effects on mass transfer parameters and the quality of dried garlic slices. The optimal drying conditions were determined, and both RSM and ANN approaches accurately predicted the responses, with ANN models showing higher accuracy.
JOURNAL OF FOOD PROCESS ENGINEERING
(2023)
Article
Energy & Fuels
Chandranath Dutta, Dhiraj Kumar Yadav, Vinkel Kumar Arora, Santanu Malakar
Summary: The thermal performance, drying characteristics, and quality attributes of turmeric slices were investigated using an evacuated tube solar dryer with and without thermal energy storage. Two pre-treatments, namely curing and peeling, were considered. The study conducted a comparative analysis of drying characteristics, mathematical modeling, and quality parameters using a solar dryer with phase change material (ETDP) and without PCM (ETD). The results showed that the ETDP had lower temperatures but slower drying rates compared to the ETD. The cured turmeric samples dried using ETDP had the highest curcumin content and antioxidant activity, while the peeled samples dried using ETD had the fastest drying rate.
Review
Food Science & Technology
Santanu Malakar, Vinkel Kumar Arora, Mohona Munshi, Dhiraj Kumar Yadav, K. R. Jolvis Pou, Saptashish Deb, Ram Chandra
Summary: This review summarizes the mechanistic aspects and applications of emerging pretreatment approaches, namely ohmic heating (OH), ultrasound (US), high pressure processing (HPP), and pulsed electric field (PEF), with emphasis on the enhancement of mass transfer and quality attributes of foods. Novel pretreatments significantly improved the drying efficiency by increasing mass transfer, cavitation, and microchannel formation within the cell structure. Various processing parameters have great influence on the drying performance and quality attributes of foods. Several studies have shown that novel pretreatments (individual and combined) can significantly save energy while improving the overall drying performance and retaining the quality attributes.
FOOD SCIENCE AND BIOTECHNOLOGY
(2023)
Article
Engineering, Mechanical
Jitender Kumar, Gian Bhushan
Summary: This article proposes a hybrid semi-active system to control vehicle vibrations, aiming to reduce health concerns and improve vehicle stability and passenger comfort. The system combines a magnetorheological (MR) elastomer with MR fluid to achieve adjustable damping and stiffness, reducing the body's biodynamic response to vibrations. The damper current is controlled using a hybrid strategy of fuzzy logic controller and PID controller. Experimental results comparing the system with a passive system show a 90% improvement in vehicle stability and a reduction of approximately 89.6% in RMS acceleration, achieving high comfort levels according to ISO standards.
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF MECHANICAL ENGINEERING
(2023)
Article
Food Science & Technology
Santanu Malakar, Vinkel Kumar Arora, Prabhat K. Nema, Dhiraj Kumar Yadav
Summary: This research aims to develop and evaluate an infrared-assisted hybrid solar dryer for drying pineapple slices. The study compares the thermal profiling, drying kinetics, mass transfer parameters, and quality attributes of pineapple slices dried using different methods. The results show that the infrared-assisted hybrid solar drying method has a higher drying rate and better quality attributes.
INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES
(2023)
Article
Energy & Fuels
Dhiraj Kumar Yadav, Vinkel Kumar Arora, Anupama Singh, Santanu Malakar, T. Manonmani
Summary: This study compared the drying characteristics and quality attributes of okra dried using different techniques, including sun drying, an evacuated tube solar dryer with heat pipe (ETSD_HP), and an evacuated tube solar dryer without heat pipe (ETSD_WHP). The results showed that the sample pre-treated at 80 degrees C and dried in ETSD_HP had the highest moisture diffusivity. The bioactive compounds and functional properties of okra were better retained in both ETSD_HP and ETSD_WHP techniques compared to sun drying. ETSD_HP was recommended for its increased moisture diffusion and maximum retention of bioactive compounds.
Article
Food Science & Technology
Vikram Kumar, Vinkel Kumar Arora, Ananya Rana, Ankur Kumar, Neetu Kumra Taneja, Jayesh J. Ahire
Summary: This study investigated the overproduction of riboflavin in selected Lactiplantibacillus plantarum strain and achieved a 24% increase in riboflavin production by optimizing the conditions using a fuzzy inference system.
Review
Environmental Sciences
Santanu Malakar, Vinkel Kumar Arora, Prabhat K. Nema, Vikrant Yadav
Summary: The growing demand for solar energy as a replacement for fossil fuels is leading to reduced carbon emissions and global warming. Evacuated tube solar collectors (ETSC) are used in various sectors for air heating, water heating, and drying, and several factors such as fin arrangement, integration of phase change material, and solar radiation influence their performance. This review paper discusses the thermal performance parameters of ETSC-based solar air heaters and dryers, including collector efficiency, dryer efficiency, energy and exergy efficiency, and heat loss during operations. The potential of using solar air heaters (SAH) for food commodity drying is also explored, along with the use of nanofluids and phase change materials to improve thermal performance. Additionally, CO2 mitigation analysis and global standards for ETSC-based air heaters and dryers are compiled.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
