This work aimed to study one of the most important challenges in orthopaedic implantations, known as stress shielding total shoulder implants. problem arises from elastic modulus mismatch between implant and surrounding tissue, can result bone resorption loosening. objective was addressed by designing optimising a cellular-based lattice-structured control stiffness humeral stem used applications. topology lattice-optimisation tool create different cellular designs that filled original design...

This paper investigates the fluid-structure interaction in transfer of heat through natural convection within an L-shaped wavy enclosure featuring a flexible baffle. Through numerical simulations Comsol Multiphysics based on Finite Elements Method, study explores influence various parameters such as time, Rayleigh number (Ra), elasticity modulus (E) isotherms, streamlines, and velocity surfaces enclosure. Results reveal complex flow patterns, with high-temperature isotherms aligning closely...

In the interest of developing a comprehensive understanding drilling process using hole saw tool, this article aims to build three-dimensional (3D) micromechanical model representing orthogonal cutting CFRP one tooth tool. For purpose, finite element is developed Abaqus Explicit code. The influence various parameters like rake angle, inclination angle and cutting-edge radius on quality explored. Especially, chip formation mechanisms, force lateral damage are analyzed. Through simulations...

Secondary dendrite arm spacing (SDAS) is one of the most important factors affecting macrosegregation and mechanical properties in solidification processes. Predicting SDAS major parameters foundry technology. In order to predict evolution microstructures during process, we proposed a simple model which predicted secondary based solely on tip velocity (related supersaturation) cooling rate. The consisted growing cylinder inside liquid cylindrical envelope. Two hypotheses were made: (1)...

Research efforts have been dedicated to predicting microstructural evolution during solidification processes. The main secondary arm spacing controls the mushy zone’s permeability. aim of current work was build a simple sub-grid model that describes growth and coarsening side dendrite arms. idea reduce complexity curvature distribution with only two adjacent arms in concurrence. built applied directional Al-06wt%Cu alloy Bridgman experiment. showed its effectiveness phenomena alloy. results...

The research investigates the dry sliding wear characteristics of Al7475 alloy-based composites reinforced with three dissimilar powders (SiC, TiB2, and Flyash) in context solid waste management. aim this paper to analyze effect selected parameters such as Reinforcements (RT), distance (SE) speed (SD) on specific rate (SWR). Three different Al (Al7475/3 wt% RT, Al7475/6 Al7475/9 RT) are produced by squeeze casting process. As per L27 orthogonal array design, tests were performed Pin Disk...

Unmanned aerial vehicles must achieve precise flight maneuvers despite disturbances, parametric uncertainties, modeling inaccuracies, and limitations in onboard sensor information. This paper presents a robust adaptive control for trajectory tracking under nonlinear disturbances. Firstly, uncertainties are addressed using model reference principles to ensure that the dynamics of vehicle closely follow model. To address effects modified disturbance observer is designed based on estimated...

The wear loss and frictional characteristics of magnesium-based hybrid composites reinforced with boron carbide (B4C) particles graphite filler were the main subjects investigation. Key parameters, including reinforcement content (0–10 wt%), applied load (5–30 N), sliding speed (0.5–3 m/s), distance (500–3000 m), varied. Data-driven machine learning (ML) algorithms utilized to identify complex patterns predict relationships between input variables output responses. Five distinct algorithms,...

This study evaluates the potential of hydrogen as a clean additive to conventional diesel fuel. Experiments were carried out on single-cylinder, air-cooled engine under half- and full-load conditions, across speeds ranging from 1000 3000 rpm. Hydrogen, produced site via proton exchange membrane electrolyser, was supplied at constant flow rate 0.5 L/min. Compared pure diesel, hydrogen–diesel blend reduced specific fuel consumption by 10% increased brake thermal efficiency full load. Emissions...

ABSTRACT Improving the thermal properties of phase change materials is essential for enhancing energy storage systems. This paper seeks to enhance efficiency latent heat by integration anisotropic metal foams (AMFs). The and melting behavior partly AMF designs, with systematic variations in placement, covering, orientation, are computationally modeled studied maximize absorption distribution within system. A total 12 distinct examples were examined based on form proportions a funnel‐shaped...

This study aims to enhance the mechanical and wear properties of AZ91 magnesium alloy by reinforcing it with 23 vol.% short carbon fibers (SCFs) aligned in normal (AZ91C-N) parallel (AZ91C-P) orientations via squeeze-casting. The microstructure elemental distribution maps were analyzed using an advanced SEM-EDS system. A response surface methodology (RSM) based on a Face-Centered Composite Design (FCCD) was employed optimize under varying temperature (20–300 °C) load (1–5 N) conditions....

Magnesium alloys are still attractive materials for applications that necessitate light weight due to their low density, moderate strength, and good corrosion resistance. AZ91 is one of the widely applied magnesium its very castability strength. However, drawbacks elastic modulus. So, reinforcing with carbon short fibers aim further increasing strength improving modulus investigated in this study. Squeeze cast AZ91-23 vol.% (AZ91-C) unreinforced deeply examined by tensile testing at...

Limb disability is a frequent healthcare problem, especially for patients in primary care. Orthotic treatment has become the most common practice either rehabilitation or permanent assistance, due to emergence of 3D scanning and printing technologies. A CAD model rebuilt from captured data key step rapid prototyping process customized orthoses. An accurate robust surface reconstruction technique remains research challenge, aiming well-fitting design patient’s comfort. Thus, this paper...

Due to the high computational costs of Eulerian multiphase model, which solves conservation equations for each considered phase, a two-phase mixture model is proposed reduce these in current study. Only one single equation momentum and enthalpy has be solved phase. The Navier-Stokes energy were using 3D finite volume method. was used simulate liquid-solid phase transformation Fe-0.82wt%C steel alloy under effect both thermocapillary buoyancy convections. cooled rectangular ingot (100 × 100...