The aim of this study is to prepare a dual layer polyvinyl (PVA) patch using combination electrospinning techniques and cryogelation (freeze-thaw process) then subsequently investigate the effect freeze-thaw cycles, nanofiber thickness, diclofenac sodium (DS) loading on physicochemical mechanical properties formulation PVA patches composed electrospun nanofibers cryogel. After successful preparation patch, prepared was subjected investigation assess thickness percentages DS morphology,...

This paper presents the tensile strength of woven kenaf fiber reinforced polyester composites.The as-received yarn is weaved and then aligned into specific orientations before it hardened with resin.The composite plates are shaped according to standard geometry uni-axially loaded in order investigate responses.Two important parameters studied such as number layers.According results, shown that greatly affected ultimate but not for modulus elasticity both types layers.It estimated reductions...

Transdermal drug delivery system (TDDS) was designed to be applied onto the skin surface and deliver active across into systemic circulation. Thus, this mini-review is focusing on factors affecting release through Poly-vinyl Alcohol (PVA) electrospun nanofiber mats epidermis. Several types of non-steroidal anti-inflammatory (NSAID) with different molecular weight were reviewed. Electrospinning method used fabricate PVA that act as carriers drugs for TDDS due its excellent ability produce...

Fiber-reinforced composites (FRCs) offer high specific mechanical properties like-exceptional strength, lightweight properties, and versatility, but their susceptibility to impact damage poses a significant challenge. Characterizing these while connecting processing methods, microstructure, environmental factors response has seen limited success through conventional modeling. But with increasing computational power availability of data, machine learning techniques present opportunities in...

The development of sustainable, high-performance materials is crucial to meet the demands for eco-friendly and durable composites in various industries. Polypropylene nanoclay reinforced with natural fibres, such as bamboo, offer a promising alternative due their improved mechanical properties environmental benefits. However, fracture toughness these polypropylene varying bamboo fibre loadings remains insufficiently studied, particularly terms how different concentrations impact material's...

The synthetic fibres have created some issues including risk of inhalation during fabrication process, renewability, biodegradability, and recyclability in composites industry. usage biocomposites as a replacement to is beginning be widespread. However, it noted that lesser attention has been devoted evaluating the mechanical properties woven kenaf at various stacked layer orientation. Thus, research objective identify effect orientation on tensile flexural composites. Two types fibre are...

is present project investigated the impact penetration response of woven jute fiber reinforced composites subjected to wide range low velocities. Hand layout fibers are thermally compressed ensure no internal defects formed in composites. Six layers jutes stacked together using different orientations [0/q/0] s . Low velocities used ranging between 5 – 20 m/s. Force-time, force-displacement and energy-time curves obtained automatically during tests. The results then discussed with considering...

This paper reviewed the use of ANSYS finite element program in analyzing engineering structures containing defects or cracks.It is provided a fracture mechanics module which capable to model crack tip efficiently.In studying cracks elastic medium, linear (LEFM) used where crack-driving force called stress intensity factor, J-integral, energy release rate as indicators failure.There are three approaches can be calculate factors (SIF) such Displacement Extrapolation Method (DEM) and...

This research focuses on the study of oblique impact kenaf reinforced composite plate. summarizes modeling analysis targets subjected to certain angle collisions which ranging from 0o-45o. Due low density, natural fiber such as provides relatively good mechanical properties than glass fiber. Thus, fibers have high potential for better reinforcement in light weight structures aircraft, automobile. In this research, velocity is conducted by using commercial finite element software, ANSYS. A...

This paper presents the experimental investigations on low velocity impact response of woven kenaf fiber reinforced composites. Kenaf yarns are weaved with an orientation 0 warp and 90 weft to form mat. Three mats stacked together achieve specified sequences. The hardened polymeric resin compressed squeeze off any excessive minimize voids content. composite plates perforated using different velocities. Impact responses examined according stacking sequences, velocities fragmentation patterns....

This study presents a numerical investigation on the stress intensity factors (SIF), K of surface cracks in round bars that were obtained under pure torsion loadings or mode III. ANSYS finite element analysis (FEA) was used to determine SIFs along crack front embedded solid circular bars. 20-node isoparametric singular elements around tip by shifting mid-side node ¼-position close tip. Different aspect ratio, a/b ranging between 0.0 1.2 and relative depth, a/D ranged 0.1 0.6. Mode I SIF, KI...

This paper presented a computational fluid dynamics (CFD) simulation of air flow past 2D model NACA0012 airfoil at high Reynolds number (Re = 3.0 x 10 6 ) various angles attack (-10 to 15).The simulations were undertaken inform on how the flowed around by solving steady state governing equations continuity and momentum conservation that are combined with one three turbulence models Spalart-Allmaras, Realizable k-ε k-ω shear stress transport (SST).It is observed eliminates small separation...

Natural fibres have the potential aspect to replace glass fibre reinforced composites.One of these fibers is kenaf.It also one selected natural that bio resource profit regarding on their capability absorb energy absorption especially.In order prove application this fiber for load-bearing application, in form yarn weaved into mat and with plastic resin.This study focused twill kenaf woven composite structure.Composites were prepared using hand lay-up method different type orientation where...

Nowadays, green composites provide alternative to synthetic fibers for non-bearing and load-bearing applications. According literature review, lack of information is available on the fatigue performances especially when woven fiber used instead randomly oriented fibers. In order overcome this problem, paper investigates strength different orientations number layers kenaf reinforced composites. Four types are namely 0°, 15°, 30° 45°. Additionally, two numbers also considered. It revealed that...

Abstract: Monitoring and control the mushroom house environment play an important role in cultivation quality. Assurance of optimal temperature humidity has a direct influence on growth performance. Traditionally, required great effort to connect distribute all sensors data acquisition systems. Natural such as during day either hot rain is affecting moisture directly. The for around 20°C 80% respectively. For this reason, order maintain humidity, Matlab Simulink was developed run simulations...

The solution of stress intensity factor (SIF) for central edge crack embedded in bi-material plate can be found open literature. Instead a single crack, some researches on the multiple problems also found. However, solutions SIFs cracks plates are difficult to obtain. In this paper, such solved numerically using ANSYS finite element program. There three important parameters that used namely, relative depth, a/W, offset distance, b/h and modulus ratio, E1/E2. Both materials assumed perfectly...