Muhamad Saifuldin Abdul Manan
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Preferred name
Muhamad Saifuldin Abdul Manan
Official Name
Muhamad Saifuldin , Abdul Manan
Alternative Name
Abdul Manan, M. S.
Abdul Manan, Muhamad Saifuldin
Main Affiliation
Scopus Author ID
58144906800
Researcher ID
IUT-1042-2023
FNB-4445-2022

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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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Feasibility study of wave energy converter using compressed air to generate electricity

2021-01-01 , Najmuddin W.S.W.A. , Mohammad Taufiq Mustaffa , Muhamad Saifuldin Abdul Manan , Ahmad Faizal Annuar , Atikah Haji Awang @ Haji Mohd Ramli , Azzeri M.N.

Wave energy is one of the promising resources for harnessing a vast amount of renewable energy. Wave energy converter is being defined by a particular design and the power take-off system which signify the mechanism of absorbing the wave energy and convert it into electricity. Addressing the significant potential of wave energy, the wave converter using a pneumatic system and compressed air as energy storage is designed and fabricated. The concept is presented and tested in the wave maker to analyze the performance of the prototype. This project aims to study the capabilities of small-scale, low cost and portable wave energy converter using compressed air to generate power. In this project, an experiment is conducted using the force of wave to generate linear motion of double acting cylinder that specifically creates compressed air in a small-scale tank. From the experiment, it is observed that the wave energy able to compressed air at pressure up to 0.5 bar. Then, the compressed air which is stored in the storage tank is released and it flows through water turbine that works as a generator to produce a power output of 18 V. The feasibility study reveals that the experiment able to harness electricity using low equipment tool. Further improvement of the design can increase the efficiency of the pneumatic generated system and able to generate an electric power.

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Optimization of compacting process for porous Ti-6Al-7Nb alloys with magnesium as a space holder by using

2022-10 , M N Fazlen , R. N. Ahmad , N I N Suhaimi , Muhamad Saifuldin Abdul Manan , Marina Marzuki

The optimization of compacting process for porous titanium niobium (Ti-6Al-7Nb) alloys with magnesium as a space holder prepared by powder metallurgy process was studied to analyze the significant porosity required in biomedical industry especially in bone tissue engineering. This approach helps to replace the damaged bones and solve the problem occurs during the implantation for artificial joints which is important that the implant material's stiffness is as similar to the joint bone as possible. The aim was to determine the significant factors affecting the physical and mechanical properties performance of porous Ti-6Al-7Nb alloys such as density and strength. Firstly, the Ti-6Al-7Nb were mixed with magnesium with weight percentage of 20%, 30%, and 40% as a spacer material for 30 minutes using Fritsch Pulverisette Mill mixer machine. Then, for compacting process, pressure in the range of 400MPa, 500 MPa and 600MPa were applied to the powder mixtures in a 13 mm cylindrical die by using manual hydraulic hand press machine. Compacting parameters have been optimized using Taguchi method of L-9 (34) orthogonal array. From the ANOVA results, density shows that holding time played as the most effected significant factor with 37.77% and compression was 59.47% for composition sample. The study demonstrated that many factors has been successfully optimized simultaneously, and a lot of quantitative information can be extracted from fewer experimental trials by using Taguchi method in compacting process.

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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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Design of a drag and lift type blade for power generation via air turbine

2021-01-01 , Najmuddin W.S.W.A. , Mohammad Taufiq Mustaffa , Muhamad Saifuldin Abdul Manan , Ahmad Faizal Annuar , Atikah Haji Awang @ Haji Mohd Ramli

Compressed air is a vital medium for transferring energy in industrial processes. Compressors are efficient and reliable in meeting need and demand, especially in the industry while at the same time helping to reduce carbon footprint. However, there are several constraints using an air turbine as an operational element in generating electricity from compressed air. One of the key factors involved is the design of a blade that capable to increase the performance of the turbine and electricity generation from compressed air. Thus, this paper objectives are to develop a proposed design of a drag and lift type blade design and to evaluate the power generate that able to be harnessed from the force of the air. Additionally, the power coefficient that is harnessed from the generator using these new designs of blade also evaluated. In the experiment, the model is set up using the proposed concept of Savonius and Darrieus typed in order to generate electricity for small power equipment. Results show that these blade designs able to generate of 21-v for Savonius whereas 24-v for Darrieus from 0.3 MPa input source. Based on the result of an experiment, this study reveals that both type of blade design able to generate electricity constantly however, the performance of Darrieus vertical axis blade design is better compared to Savonius vertical axis blade design.

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Sol gel deposited hydroxyapatite-based coating technique on porous titanium niobium for biomedical applications: a mini review

2021 , N.F. Mohammad , Rozie Nani Ahmad , Nur Liyana Mohd Rosli , Muhamad Saifuldin Abdul Manan , Marina Marzuki , A. Wahi

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Optimization of compacting process for Porous Ti-6Al7Nb alloys with Magnesium as a space holder by using Taguchi Method

2022-10 , M N Fazlen , R. N. Ahmad , N I N Suhaimi , Muhamad Saifuldin Abdul Manan , Marina Marzuki

The optimization of compacting process for porous titanium niobium (Ti-6Al-7Nb) alloys with magnesium as a space holder prepared by powder metallurgy process was studied to analyze the significant porosity required in biomedical industry especially in bone tissue engineering. This approach helps to replace the damaged bones and solve the problem occurs during the implantation for artificial joints which is important that the implant material's stiffness is as similar to the joint bone as possible. The aim was to determine the significant factors affecting the physical and mechanical properties performance of porous Ti-6Al-7Nb alloys such as density and strength. Firstly, the Ti-6Al-7Nb were mixed with magnesium with weight percentage of 20%, 30%, and 40% as a spacer material for 30 minutes using Fritsch Pulverisette Mill mixer machine. Then, for compacting process, pressure in the range of 400MPa, 500 MPa and 600MPa were applied to the powder mixtures in a 13 mm cylindrical die by using manual hydraulic hand press machine. Compacting parameters have been optimized using Taguchi method of L-9 (34) orthogonal array. From the ANOVA results, density shows that holding time played as the most effected significant factor with 37.77% and compression was 59.47% for composition sample. The study demonstrated that many factors has been successfully optimized simultaneously, and a lot of quantitative information can be extracted from fewer experimental trials by using Taguchi method in compacting process.

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Effect of loading protocol on the mechanical properties of 316L stainless steel

2021-10-25 , Heng S.H. , Azmi M.S.M. , Mohd Afendi Rojan , Mohd Sani Mohamad Hashim , Mohd Nasir Ayob , Abdul Halim Ismail , Muhamad Saifuldin Abdul Manan , Abdullah S.

Two types of loading protocol, i.e., monotonic loading and cyclic loading, were compared to investigate the effect on the mechanical properties of 316L stainless steel. The specimen used is a dog-bone specimen in accordance with ASTM E8 and ASTM E606 standard. For cyclic loading, the multiple-step method is used to obtain the hysteresis loop of the material. A total of 13 strain amplitude conditions had been carried out, ranging from 0.05%-0.65%. The stress-strain curve shows that the cyclic stress-strain curve is higher than the monotonic stress-strain curve due to the cyclic hardening behaviour in the 316L stainless steel. The cyclic hardening behaviour increases the ultimate tensile stress of the material. However, when the material gains its strength through cyclic hardening, the ductility in the material will decrease.

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Influence of filament fabrication parameter on mechanical properties of 3D printing PLA filament

2024-04-01 , Lau H.Y. , Sanusi Hamat , Mohd Sabri Hussin , Muhamad Saifuldin Abdul Manan

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. The aim of this paper is to study the effect of extrusion parameters on the quality of the 3D printing filament. The study began by extruding of 3D850D grade PLA pellet from Ingeo Natureworks into a single filament extruder machine with an extrusion temperature range of 165 °C to 185 °C to and a screw rate of 2rpm to 6rpm. The 90° raster angle of line infill pattern with 100% infill density were used for the 3D printing specimens. Taguchi method was used to design the experiment. Mechanical test standards such as ASTM D638, ASTMD695 and ASTM D790 and was used for tensile, compression and flexural testing respectively to analyze the quality of the extruded PLA filament. According to the result obtained, the optimum parameter for highest mechanical strength was obtained at an extrusion temperature of 175 °C to 180°C and screw speed of 4-5 rpm as the filament extruded meets the required diameter of commercial 3D printing filament.

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