A5066248493- Orthopaedic implants and arthroplasty
- Total Knee Arthroplasty Outcomes
- Advanced materials and composites
- Additive Manufacturing and 3D Printing Technologies
- Orthopedic Infections and Treatments
- Advanced machining processes and optimization
- Natural Fiber Reinforced Composites
- Bone Tissue Engineering Materials
- Tribology and Wear Analysis
- Hip disorders and treatments
- Advanced Machining and Optimization Techniques
- Powder Metallurgy Techniques and Materials
- Ergonomics and Musculoskeletal Disorders
- Mechanical Engineering and Vibrations Research
- Gear and Bearing Dynamics Analysis
- Adhesion, Friction, and Surface Interactions
- Biodiesel Production and Applications
- Nanocomposite Films for Food Packaging
- Mechanical stress and fatigue analysis
- Solar Thermal and Photovoltaic Systems
- biodegradable polymer synthesis and properties
- Metal and Thin Film Mechanics
- Tribology and Lubrication Engineering
- Constructed Wetlands for Wastewater Treatment
- Heart Rate Variability and Autonomic Control
Diponegoro University
2021-2025
University of Liberia
2024
Universitas Pasundan
2022-2024
Southern University of Science and Technology
2023-2024
Chandigarh University
2024
Sriwijaya University
2019-2021
The selection of biomaterials for bearing in total hip arthroplasty is very important to avoid various risks primary postoperative failure patients. current investigation attempts analyze the Tresca stress metal-on-metal bearings with three different materials, namely, cobalt chromium molybdenum (CoCrMo), stainless steel 316L (SS 316L), and titanium alloy (Ti6Al4V). We used computational simulations using a 2D axisymmetric finite element model predict stresses under physiological conditions...
Wear and wear-induced debris is a significant factor in causing failure implants. Reducing contact pressure by using textured surface between the femoral head acetabular cup crucial to improving implant’s life. This study presented effect of texturing as dimples on wear evolution total hip arthroplasty. It was implemented developing finite element analysis from prediction model without with bottom profile flat, drill, ball types. Simulations were carried out performing 3D physiological...
The choice of ceramic-on-ceramic coupling in total hip prosthesis has advantages over couplings with other combinations materials that use polyethylene and metal terms high hardness, scratch resistance, low wear rate, increased lubrication performance. To reduce the risk primary postoperative failure, selection ceramic for is a strategic step needs to be taken. current study aims analyze commonly used materials, namely zirconium dioxide (ZrO2), silicon nitride (Si3N4), aluminium oxide...
Due to polymeric wear debris causing osteolysis from polymer, metal ions metallosis metal, and brittle characteristic fracture failure ceramic in the application on bearing of total hip prosthesis requires availability new material options as a solution these problems. Polycrystalline diamond (PCD) has potential become selected for hard-on-hard view its advantages terms mechanical properties biocompatibility. The present study contributes confirming PCD replace metals ceramics through von...
In designing porous scaffolds, permeability is essential to consider as a function of cell migration and bone tissue regeneration. Good has been achieved by mimicking the complexity natural cancellous bone. this study, scaffold was developed according morphological indices (porosity, specific surface area, thickness, tortuosity). The computational fluid dynamics method analyzes flow through scaffold. values three types scaffolds (cubic, octahedron pillar, Schoen's gyroid) were compared....
Due to various concerns about the use of metal-on-metal that is detrimental users, metal as acetabular cup material was later changed ultra high molecular weight polyethylene (UHMWPE). However, wear on UHMWPE releases particles, which can trigger a negative body response and contribute osteolysis. For reducing polyethylene, one efforts investigate selection materials. Cobalt chromium molybdenum (CoCrMo), stainless steel 316L (SS 316L), titanium alloy (Ti6Al4V) are frequently employed The...
The use of material for implant bearing has a vital role in minimizing failures that endanger recipients. Evaluation contact pressure can be the basis selection and have correlations with wear contribute to need revision operations. current paper aims investigate three different metallic materials, namely cobalt chromium molybdenum (CoCrMo), stainless steel 316L (SS 316L), titanium alloy (Ti6Al4V) application metal-on-metal total hip terms pressure. In silico model based on finite element...
Total hip arthroplasty (THA) is most likely one of the successful surgical procedures in medicine. It estimated that three four patients live beyond first post-operative year, so appropriate surgery needed to alleviate an otherwise long-standing suboptimal functional level. However, research has shown during a complete THA procedure, solid implant inserted femur can damage main arterial supply cortex and medullary space, leading cortical bone resorption. Therefore, this study aimed design...
In the present study, effects of human physiological activity levels on fatigue life a porous magnesium scaffold have been investigated. First, dynamic immersion and biomechanical testing are carried out to simulate conditions. Then, numerical data analysis computer simulations predict implant failure values. A 3D CAD bone model was used fatigue, based micro-tomographic images. This study uses simulation solid mechanics daily activities, which include walking, running, climbing stairs, with...
Abstract Hip joint prostheses are used to replace hip function in the human body. The latest dual-mobility prosthesis has an additional component of outer liner that acts as a cover for component. Research on contact pressure generated model under gait cycle never been done before. is made ultrahigh molecular weight polyethylene (UHMWPE) inner and 316L stainless steel (SS 316L) acetabular cup. Simulation modeling using finite element method considered static loading with implicit solver...
The superior engineering properties and excellent biocompatibility of titanium alloy (Ti6Al4V) stimulate applications in biomedical industries. Electric discharge machining, a widely used process advanced applications, is an attractive option that simultaneously offers machining surface modification. In this study, comprehensive list roughening levels variables such as pulse current, ON time, OFF polarity, along with four tool electrodes graphite, copper, brass, aluminum are evaluated...
The most prevalent 3D printing technology on the market currently is Fused deposition modeling (FDM). main objective of this study to analyze effect FDM process parameters time and socket weight printed prosthetic as a component transtibial prosthesis. Optimization were carried out using Taguchi RSM methods. method was used evaluate influence various factors (socket thickness, layer height, infill density, print speed, nozzle temperature) amount weight. Furthermore, that have significant are...
This study explores the influence of Zinc Oxide (ZnO) nanofluids on solar water heaters with Dimple Tubes and Helical Twisted Tape (DTHTT) surfaces. The helical twisted tape design enhances turbulence, improving nanofluid mixing thermal exchange. Computational fluid dynamics (CFD) validates efficiency parabolic trough heater (PTSWH) emphasis light concentration feed flow velocity. Optimal conditions include a 0.3% ZnO volume concentration, mass rates between 1.0 kg/min 5.0 kg/min,...
Previous works had successfully demonstrated the clinical effectiveness of unilateral external fixator in treating various types fracture, ranging from simple type, such as oblique and transverse fractures, to complex fractures. However, literature that investigated its biomechanical analyses further justify efficacy is limited. Therefore, this paper aimed analyse stability for different including oblique, AO32C3 comminuted, 20 mm gap fracture. These fractures were reconstructed at distal...
This study explores the impact of fly ash (FA) filler on mechanical, morphological, and water absorption properties pineapple leaf fibre (PALF)-reinforced epoxy composites for biomedical applications.
Pulsating heat pipe (PHP) is an implicit technique through a passive two-stage transfer system. This paper presents the experimentations on PHP contrived using copper with different inner tube diameters of 1, 1.5, 2, and 2.5 mm, respectively. The accused acetone as functional liquid filling proportions varying from 50 to 90% its volume increment 10%. effects proportion diameter thermal performance were investigated. evaporator zone electrically heated mica heater in range 20–80 W, condenser...
The growing demand for fiber-reinforced polymer (FRP) in industrial applications has prompted the exploration of natural fiber-based composites as a viable alternative to synthetic fibers. Using jute–rattan composite offers potential environmentally sustainable waste material decomposition and cost reduction compared conventional fiber materials. This article focuses on impact different machining constraints surface roughness delamination during drilling process FRP composite. Inspired by...
This study investigates the enhancement of mechanical properties metal/polymer composites produced through fused deposition modeling and prediction ultimate tensile strength (UTS) by machine learning using a Classification Regression Tree (CART). The composites, comprising 80% acrylonitrile butadiene styrene matrix 10% each aluminum (Al) copper (Cu) fillers, were subjected to comprehensive exploration printing parameters, including temperature, infill pattern, density Taguchi method. CART...
This study emphasizes the criticality of measuring specific cutting energy in machining Hastelloy C276 for biomedical industry applications, offering valuable insights into machinability and facilitating optimization tool selection, parameters, process efficiency. The research employs artificial intelligence-assisted meta-models cost-effective accurate predictions consumption. Comparative analyses conducted on C276, utilizing a TiAlN-coated solid carbide insert across various media (dry,...
In this research, the production of carbon fiber composite (CFC) with epoxy resin was carried out for biomedical application. The surface fibers previously oxidized concentrated nitric acid at a temperature 100 °C 30–120 min to create rough impression on enhance interfacial bonding in composite, increase area, and reduce tension. fiber/epoxy fabricated using vacuum assisted infusion method. Characterization products performed digital microscope, scanning electron Fourier Transform Infrared...
Previous research has primarily focused on pre-processing parameters such as design, material selection, and printing techniques to improve the strength of 3D-printed prosthetic leg sockets. However, these methods fail address major challenges that arise post-printing, namely failures at distal end socket susceptibility shear failure. Addressing this gap, study aims enhance mechanical properties sockets through post-processing techniques. Fifteen PLA + are fabricated reinforced with four...