Mohd Sabri Hussin
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Preferred name
Mohd Sabri Hussin
Official Name
Mohd Sabri , Hussin
Alternative Name
Hussin, M. S.
Main Affiliation
Scopus Author ID
57205359991
Researcher ID
CVC-0266-2022

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Now showing 1 - 10 of 11
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Effect of kenaf fiber loading on the tensile properties of 3D printing PLA filament

2023-01-01 , Lau H.Y. , Mohd Sabri Hussin , Sanusi Hamat , Muhamad Saifuldin Abdul Manan , Ibrahim M. , Hafizawati Zakaria

As know Polylactic acid (PLA) is a popular and widely used thermoplastic material used in fused filament fabrication (FDM) due to its biodegradability and biocompatibility. As PLA was identified as a brittle material, reinforcement was used to enhance the properties of the PLA. This paper aims to study the effect of using various kenaf volume ratios on the tensile properties of the 2003D PLA filament for 3D printing. The study began by extruding 2003D grade PLA pellet from Ingeo NatureWorks into a single filament extruder machine with an extrusion temperature of 190 °C and a screw rate of 7 rpm. The 90° raster angle of line infill pattern with 100 % infill density were used for the 3D printing specimens. Mechanical test standards such as ASTM D638, was used for tensile testing to analyse the quality of the extruded PLA single filament. As result, the with kenaf fibre loading of 15 % shows the optimum tensile properties among the filler loading, hence it is proven that the tensile properties of the was indeed being enhanced by the additional of the kenaf fibre as reinforcement.

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Numerical and Experimental Investigation on Aluminium 6061 Solid Cylindrical Bar Subjected to Close-in Blast Loading

2024-01-01 , Mohd Syedi Imran Mohd Dawi , Ahmad Humaizi Hilmi , Muhamad Saifuldin Abdul Manan , Zaidi A.M.A. , Mohd Sabri Hussin , Chong P.L.

Compaction force generated by blasting load requires strong material such as steel to act as a plunger to spread the force evenly. The problem with this method is retaining the plunger's original dimension from intolerable deformation. This paper uses ABAQUS software to study the ability to predict the response of solid cylindrical aluminium bars (6061) subjected to different close-in blast loads. The solid cylindrical aluminium bars treated as a plunger were evaluated numerically using a combination of the finite element method (FEM) and smoothed particle hydrodynamic (SPH) methods. The plunger was simulated using the Johnson-Cook (J.C.) model, and Jones-Wilkins-Lee (JWL) equation parameters modelled the explosive. Field tests were conducted by detonating explosives of two different weights, which are 100g and 250g, in the designated blast area. Both data and observation were compared and analysed regarding deformation behaviour in term of dimension difference and fracture. Based on the graph of the deformation dimension versus the plunger length, the deformation trend shows a very close relation between numerical and experimental data with a percentage error of less than 4%. The fracture mode generated using FEM is comparable to the actual specimen. This fracture mode can be described as similar to the behaviour of the specimen obtained using the Taylor impact test. Thus, it can be concluded that the numerical analysis performed for this study is consistent with the actual results.

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Effects on Ply Orientation of Kevlar/Epoxy for Ballistic Impact in Bulletproof Vest Using Non-linear Finite Element Analysis

2021-01-01 , Sanusi Hamat , Mohd Sabri Hussin , Syamir Alihan Showkat Ali , Maliki Ibrahim

The bulletproof vest is vital equipment to stop bullets from penetrating the body. The vest comes with a ballistic panel that can absorb the energy from the ballistic impact. Due to excellent impact resistance and high strength-to-weight ratio, Kevlar fibers composites are widely used for designing a ballistic panel in bulletproof vest body armor to avoid penetration. In this study, the research aims to investigate the ballistic impact behavior on a ballistic panel of Kevlar/Epoxy by using different fibers ply orientation to increase the ballistic impact performance. A finite element analysis using non-linear dynamic simulation was developed in commercial software Abaqus/Explicit to analyze the performance of impact characteristics in penetration depth, damage criteria, and energy-absorbing capacity. The simulation results show that the fibers ply orientation sequence of [0/90/0/90]2sym with 4 mm panel thickness has produced the highest energy absorption of 1523.7 J with least depth penetration of 2.12 mm for the 9 mm bullet traveling at 358 m/s and produce a lowest Hashin’s damage criteria with the value of 0.40. The finding shows that the ply orientation of Kevlar/Epoxy composite ballistic panel has excellent potential in bulletproof body armor application for minimizing the effect of blunt force trauma with less expensive materials usage and light weight ballistic panel.

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Tensile Properties of 3D Printed Recycled PLA Filament: A Detailed Study on Filament Fabrication Parameters

2023-10-01 , Sanusi Hamat , Ishak M.R. , Salit M.S. , Yidris N. , Syamir Alihan Showkat Ali , Mohd Sabri Hussin , Maliki Ibrahim , Asmawi Sanuddin

Polylactic acid (PLA), a biodegradable and biocompatible thermoplastic commonly utilized in 3D Printing filaments, undergoes changes in properties upon recycling. The objective was to elucidate the role of extrusion temperature and screw speed in modulating the quality of recycled PLA filament, as well as in controlling its dimensional attributes. Recycled PLA pellets (3D850D) were extruded using a single filament extruder machine within an extrusion temperature range of 145°C to 165°C and a screw speed varying from 2 rpm to 6 rpm. The extruded filaments were subsequently 3D printed into specimens adopting a 0° raster angle, line infill pattern, and a 100 percent infill density, then tested as per ASTM D638 mechanical standards. The study revealed a profound influence of extrusion parameters on the filament's ultimate tensile strength, yield strength, and diameter. Optimal extrusion conditions-155°C and 5 rpm-resulted in maximum mechanical strengths, while the parameters yielding filament diameters closest to commercial standards were identified as 5 rpm and 155°C. These results under-score the possibility of optimizing the recycled PLA filament's properties through adept control of extrusion parameters. Consequently, this investigation supports the potential use of recycled PLA filament in the 3D printing industry as a sustainable and performance-efficient material, offering a tangible step towards environmentally friendly additive manufacturing practices.

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Analytical and computational sliding wear prediction in a novel knee implant: a case study

2020-03-11 , Mohd Sabri Hussin , Fernandez J. , Ramezani M. , Kumar P. , Kelly P.A.

Osteoarthritis (OA) is a commonly occurring cartilage degenerative disease. The end stage treatment is Total Knee Arthroplasty (TKA), which can be costly in terms of initial surgery, but also in terms of revision knee arthroplasty, which is quite often required. A novel conceptual knee implant has been proposed to function as a reducer of stress across the joint surface, to extend the period of time before TKA becomes necessary. The objective of this paper is to develop a computational model which can be used to assess the wear arising at the implant articulating surfaces. Experimental wear coefficients were determined from physical testing, the results of which were verified using a semi-analytical model. Experimental results were incorporated into an anatomically correct computational model of the knee and implant. The wear-rate predicted for the implant was 27.74 mm3 per million cycles (MC) and the wear depth predicted was 1.085 mm/MC. Whereas the wear-rate is comparable to that seen in conventional knee implants, the wear depth is significantly higher than for conventional knee prostheses, and indicates that, in order to be viable, wear-rates should be reduced in some way, perhaps by using low-wear polymers.

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Design and Mechanical Analysis on a Compact Bicycle Loader for a Small Cubic Centimeter Motorcycle

2021-01-01 , Mohd Sabri Hussin , Sanusi Hamat , Syamir Alihan Showkat Ali

This paper presents the finite element and fluid-flow analysis on the behavior of a new compact bicycle loader design used for a small cubic centimeter motorcycle. The bicycle loader in the current market comes with various sizes and design which mostly applicable to the large-scale vehicles, namely car and motorcycle with higher cubic centimeter engines. The study aims to design a new compact bicycle loader specifically for small cubic centimeter motorcycles with greater loading capability and security. The finite element analysis was performed using the ABAQUS and ANSYS software to better understand the static and dynamic response of the bicycle loader relating to static and fatigue strengths with specific loads. The fluid-flow to structure analysis has also been carried out using the XFlow Computational Fluid Dynamic software to demonstrate the flow behavior and effect on the bicycle loader with different motorcycle speed. The fatigue analysis was carried out to analyze the structural performance of the bicycle loader. Factors like fatigue life, safety factor, biaxiality indication and fatigue response are plotted for the bicycle loader and the fatigue performance is predicted using the data obtained. The results of the stress distribution show that the maximum von-Mises stress obtained from is about 31.7 MPa, well within the yield strength if the mild steel material. The results show that the highest stress distribution occurs at the mounting part of the bicycle loader, with equivalent stress of 50.29 MPa. The results show that there are no permanent deformations occurred in the bicycle loader during the fatigue test and fulfils the minimum safety requirements needed. The fluid flow analysis show that a strong recirculation region occurs at the front of the motorcycle, bicycle headset and suspension fork and downstream of the bicycle tires, however, no obvious flow disturbance is observed in the vicinity of the bicycle loader.

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Inovasi produk : tip & panduan

2013 , Shayfull Zamree Abd. Rahim , Mohd Fathullah Ghazli@Ghazali , Mohd. Nasir Mat Saad , Mohd Sabri Hussin , Norshah Afizi Shuaib

Buku ini memberi panduan mudah kepada pembaca terutamanya para pelajar dalam memahami kaedah sebenar membangunkan sesebuah produk baru. Pembaca diberi panduan bermula dari pemahaman mengenai permasalahan sekeliling diikuti dengan kemahiran untuk memahami kehendak pelanggan, membangunkan konsep-konsep reka bentuk yang pelbagai, seterusnya membuat penilaian terhadap konsep-konsep tersebut bagi mendapatkan konsep yang paling baik. Pembaca akan dibimbing mengenai cara untuk mereka bentuk sebuah prototaip bagi tujuan pengujian prestasi selain memberi panduan untuk memilih bahan-bahan yang sesuai serta proses-proses pembuatan yang berkenaan bagi memastikan produk tersebut mampu untuk direalisasikan seperti yang diingini. Pembaca juga akan dibimbing bagaimana untuk memastikan hak cipta mereka terpelihara dengan selamat dan seterusnya memberi panduan kepada mereka bagaimana untuk merangka strategi yang baik bagi memasarkan produk yang telah mereka ilhamkan.

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The Effects of Self-Polymerized Polydopamine Coating on Mechanical Properties of Polylactic Acid (PLA)–Kenaf Fiber (KF) in Fused Deposition Modeling (FDM)

2023-06-01 , Sanusi Hamat , Syamir Alihan Showkat Ali , Salit M.S. , Yidris N. , Showkat Ali S.A. , Mohd Sabri Hussin , Muhamad Saifuldin Abdul Manan , Muhamad Qauyum Zawawi Ahamad Suffin , Maliki Ibrahim , Ahmad Nabil Mohd Khalil

This research examines the impact of self-polymerized polydopamine (PDA) coating on the mechanical properties and microstructural behavior of polylactic acid (PLA)/kenaf fiber (KF) composites in fused deposition modeling (FDM). A biodegradable FDM model of natural fiber-reinforced composite (NFRC) filaments, coated with dopamine and reinforced with 5 to 20 wt.% bast kenaf fibers, was developed for 3D printing applications. Tensile, compression, and flexural test specimens were 3D printed, and the influence of kenaf fiber content on their mechanical properties was assessed. A comprehensive characterization of the blended pellets and printed composite materials was performed, encompassing chemical, physical, and microscopic analyses. The results demonstrate that the self-polymerized polydopamine coating acted as a coupling agent, enhancing the interfacial adhesion between kenaf fibers and the PLA matrix and leading to improved mechanical properties. An increase in density and porosity was observed in the FDM specimens of the PLA–PDA–KF composites, proportional to their kenaf fiber content. The enhanced bonding between kenaf fiber particles and the PLA matrix contributed to an increase of up to 13.4% for tensile and 15.3% for flexural in the Young’s modulus of PLA–PDA–KF composites and an increase of up to 30% in compressive stress. The incorporation of polydopamine as a coupling agent in the FDM filament composite led to an improvement in tensile, compressive, and flexural stresses and strain at break, surpassing that of pure PLA, while the reinforcement provided by kenaf fibers was enhanced more by delayed crack growth, resulting in a higher strain at break. The self-polymerized polydopamine coatings exhibit remarkable mechanical properties, suggesting their potential as a sustainable material for diverse applications in FDM.

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Experimental and finite element modeling of partial infill patterns for thermoplastic polymer extrusion 3D printed material using elasto-plastic method

2020-10-26 , Mohd Sabri Hussin , Sanusi Hamat , Syamir Alihan Showkat Ali , Muhammad Aiman Ahmad Fozi , Yuzairi Abdul Rahim , Mohd Syedi Imran Mohd Dawi , Darsin M.

Fused Deposition Modeling is known as one of the 3D printing technology where it used a thermoplastic filament to produce a prototype or a 3D part. FDM will print out the 3D part, layer by layer on the platform of the 3D printer from bottom to top using the extruded molten thermoplastic. However, there is no information about the volume enclosed by the boundary surface of the 3D part by commonly used model data format such as STL file, since the volume enclosed can be completely or partially filled. Therefore, the study and research have been carried out to investigate the strength of the 3D part affected by the design of the infill pattern where three methods being used which are design, experiment and simulation. The 3D parts were designed using CATIA V5 following the ASTM D638 for tensile test and ASTM D695 for compression test. The 3D design was then being printed using the Fused Deposition Modeling (FDM) technique for experimental purposes and to perform the quasi-static test. Furthermore, the 3D printed with infill pattern test data were then being imported to ABAQUS/Explicit software for non-linear finite element analysis using elasto-plastic approach. The best infill patterns that exhibit a better strength after the 100% fill part is the 30% fill Lines pattern. It can be concluded that the average percentage error of stress and strain values between experimental test and simulations in tensile and compression for all specimens is below than 10%.

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Analysis of multi-thickness plates by successive forging

2022-01-01 , Siti Sarah Taib , Liyana Tajul , Muhammad Hasnulhadi Mohammad Jaafar , Mohd Sabri Hussin , Hamedon Z.

The demand of lightweight vehicles is increasing due to environmental issues. To fulfill this demand, tailored blanks are utilized in the production of vehicles. Tailored blanks have been used in car body part such as center pillar and roof rails for the purpose of weight reduction where thickness distribution is being optimized. Tailored blanks are commonly produced by welding and rolling. Tailor-rolled blanks produced by rolling process has continuous thickness transition as compared to tailor-welded blanks and hence stress concentration is reduced. However, the rolling process utilized in the production of tailor-rolled blanks are not commonly available. Hence successive forging process was developed to control the thickness distribution by mean of presses. In this study, successive forging was utilized to control the thickness distribution of a plate by using upper and lower punches. The stroke is constant while the punch was designed to has three different thicknesses to achieve different thickness reduction. The feeding interval was varied for 10 mm and 17 mm. The thickness distribution, material flow and forging load for both feeding interval were analysed and compared with the conventional forging process using finite element analysis.

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