MD.MAINUL ISLAM | Khulna University of Engineering and Technology (original) (raw)
Papers by MD.MAINUL ISLAM
Materials and Manufacturing Processes, 2007
Manufacturing processes for syntactic foams made of hollow microspheres and starch were studied. ... more Manufacturing processes for syntactic foams made of hollow microspheres and starch were studied. Various manufacturing parameters in relation to the buoyancy method were identified and inter-related. An equation based on unit-cell models with the minimum inter-...
Journal of Materials Processing Technology, 2011
Pre-mould processing for syntactic foams made of starch and ceramic hollow microspheres was studi... more Pre-mould processing for syntactic foams made of starch and ceramic hollow microspheres was studied. A statistical model to relate various parameters such as volume expansion rate (VER) of initial bulk volume of microspheres (IBVMS), microsphere size, microsphere volume fractions, minimum inter-microsphere distance (MID), and mixing ratio of microspheres was developed for theoretical relations. The statistical model consists of cubic cells which can optionally be simple cubic (SC) or face centred cubic (FCC) or body centred cubic (BCC) cells. The theoretical relations were verified with experimental/numerical data for various mixtures of microspheres and found to be capable of predicting effects of microsphere size and mixture ratio of microsphere size groups on VER under various conditions arising from starch content in binder and IBVMS.
Materials & Design, 2013
ABSTRACT The mechanical and thermal properties of the grouts are critical to their potential appl... more ABSTRACT The mechanical and thermal properties of the grouts are critical to their potential application as infill materials in structural repair. In this paper, the mechanical and thermal behaviour of five epoxy based grouts were investigated to identify their prospects as a component of the composite repair for steel pipelines. The compressive strength and stiffness of the grouts are found to be 52–120 MPa and 1.7–11 GPa, respectively. The tensile, flexural and shear strengths of the grouts are found to be within the ranges of 11–32, 27–53, and 13–30 MPa, respectively. The tensile and flexural moduli range within 3–17, and 4–13 GPa, respectively. Thermal analysis of the grouts suggests that the glass transition temperature (Tg) within 60 and 90 °C which also provide the thermal applicability limits for the grouts in the composite repair of steel pipes. The development of compressive properties of three selected grouts over 28 days period was also investigated as well as the effect of the addition of coarse fillers.
Materials & Design, 2014
This paper gives an overview of utilising natural textile materials as reinforcements for enginee... more This paper gives an overview of utilising natural textile materials as reinforcements for engineering composites applications. The definition and types of textile materials are addressed to provide readers a thoughtful view on the role of these materials in a structural composite system. Available material properties of natural textile and their composites are critically reviewed here. In general, these materials are categorised into fibre, yarn and fabric forms. The load bearing capacity of natural textile fibre reinforced polymer composites is governed by the quantity, alignment and dispersion properties of fibres. It has been found that the natural fibre reinforced composites are limited to use in low to medium load bearing applications. However, a limited research work has been performed to date and there is a significant gap between the high performance textile fabric and their use as reinforcement in fibre reinforced composite materials.
Key Engineering Materials, 2011
1 Department of Materials and Metallurgical Engineering, Bangladesh University of Engineering and... more 1 Department of Materials and Metallurgical Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh 2 Centre of Excellence in Engineered Fibre Composites, University of Southern Queensland, Toowoomba, Queensland 4350, ...
Materials & Design, 2013
ABSTRACT This paper proposed a lifetime prediction model to characterise the damage response of s... more ABSTRACT This paper proposed a lifetime prediction model to characterise the damage response of square fibre-reinforced polymer (FRP) composite tubes under repeated axial impact. The model, which is a function of damage parameter D and normalised impact number Nf, used an energy-based approach. Series of impact and quasi-static compressive tests on composite tubes were undertaken to determine the required parametric values and to validate the reliability of the proposed model. Testing was performed by axially impacting 100 mm FRP pultruded tubes to 130 repeated impacts or up to collapse using a drop-mass type impact apparatus. The quasi-static compressive test was conducted using a 2000 kN capacity servo-hydraulic compressive testing machine. Results showed that the impact fatigue curve of the composite tubes follows a power function relationship. The variation of incident energies Ein between the fitting curve and experimental data is less than 3%. A good agreement is observed between the experimental data points and the prediction model.
Key Engineering Materials, 2011
Table 1: Population of timber bridges in Australia [1] ... Polymer Based Filler Materials as Infi... more Table 1: Population of timber bridges in Australia [1] ... Polymer Based Filler Materials as Infill for GFRP Pile Connector ... Chamila Sampath Sirimanna a , Md Mainul Islam b and Thiru Aravinthan c ... Centre of Excellence in Engineered Fibre Composites, University of Southern ...
Materials and Manufacturing Processes, 2008
Syntactic foam manufacturing method, 'post-mold processing', based on the buoyancy of hollow micr... more Syntactic foam manufacturing method, 'post-mold processing', based on the buoyancy of hollow microspheres was studied for potential building material applications. The post-mold processing involves mixing starch particles and ceramic hollow microspheres in water. It was found starch particles tend to adhere to hollow microspheres, forming agglomerations, during mixing. It was also found that 'volume fraction of starch particles on a microsphere making a relative density of 1.0' (VFSMRD) is an indicator for mixture volume transitions. Both the maximum total volume expansion of mixture and a transition in formation, after phase separation, of mixture volume in water referred to as 'top phase' in a mixing container were taken place at a calculated VFSMRD.
Journal of Materials Science, 2007
Abstract Novel syntactic foams for potential building material applications were developed using ... more Abstract Novel syntactic foams for potential building material applications were developed using starch as binder and ceramic hollow micro-spheres available as waste from coal-fire power stations. Foams of four different micro-sphere size groups were manufactured with ...
Composite Structures, 2013
ABSTRACT Series of impact tests were conducted to investigate the behaviour of fibre reinforced p... more ABSTRACT Series of impact tests were conducted to investigate the behaviour of fibre reinforced polymer (FRP) composite tubes under axial impact. The effects of damage parameters such as the mass of the impactor, incident energy and number of impacts on their behaviour were studied. The tests were performed by axially impacting 100 mm square FRP pultruded tubes to 130 repeated impacts or up to collapse using a drop-weight type impact apparatus. Impact masses and drop heights were varied to produce incident energies ranging from 158 to 635 J. The results showed that the peak load degradation of collapsed tubes is more rapid when it is impacted by higher incident energy. Heavier impactors caused more damage to the tubes at lower incident energies as reflected by their lower number of impacts to collapse, however, its effect gradually decreases at relatively higher energies. The incident energy is a major damage factor in the collapse of the tubes for lower number of impacts. However, the number of impacts becomes the key factor when the value of the incident energy decreases.
Composite Structures, 2013
ABSTRACT Metal pipelines are the most efficient and safe ways for oil and gas transportation over... more ABSTRACT Metal pipelines are the most efficient and safe ways for oil and gas transportation over a long distance. At present, almost all pipelines are made by ferrous steel which is sensitive to corrosion at harsh working environments, particularly in the presence of salty water and sulphur ingress media. For years, the most traditionally-credible solution for a damaged steel pipe is to remove the pipe entirely or just a localised damaged section and then replace it by a new one or cover with a steel patch through welding, respectively. Welding or fixing the steel patch is a bulky process especially if the location is underground or underwater. Thus, many researchers have been striving to find effective and safe repair solutions which are light, fast and easy to handle. Numerous literatures have shown that fibre-reinforced polymer-based composites can be effectively used for steel pipe repairs. Considerable research has been carried out on the repair of corroded and gouged pipes incorporating with fibre-reinforced composite wraps. This paper provides a comprehensive review on the use of fibre-reinforced polymer composites for in-air, underground and underwater pipeline repairs. Future developments and prospects on this are also discussed. Critical aspects of technical challenges, benefits and shortcomings in determining the feasibility and suitability for repair systems involving the composites are also presented.
Composite Structures, 2010
An innovative fibre composite sandwich panel made of glass fibre reinforced polymer skins and a m... more An innovative fibre composite sandwich panel made of glass fibre reinforced polymer skins and a modified phenolic core material was developed for building and other structural applications. The behaviour of this new generation sandwich panel was studied with ...
Composite Structures, 2012
... Unlike the two previous studies, Sakr et al. [5] characterised the interface friction of FRP ... more ... Unlike the two previous studies, Sakr et al. [5] characterised the interface friction of FRP materials and sand via pull-out and interface shear tests. ... Recently, Sakr et al. [33] developed a driving technique called toe driving to install the hollow FRP piles into granular soils. ...
Advances in Materials Science and Engineering, 2013
Materials and Manufacturing Processes, 2007
Manufacturing processes for syntactic foams made of hollow microspheres and starch were studied. ... more Manufacturing processes for syntactic foams made of hollow microspheres and starch were studied. Various manufacturing parameters in relation to the buoyancy method were identified and inter-related. An equation based on unit-cell models with the minimum inter-...
Journal of Materials Processing Technology, 2011
Pre-mould processing for syntactic foams made of starch and ceramic hollow microspheres was studi... more Pre-mould processing for syntactic foams made of starch and ceramic hollow microspheres was studied. A statistical model to relate various parameters such as volume expansion rate (VER) of initial bulk volume of microspheres (IBVMS), microsphere size, microsphere volume fractions, minimum inter-microsphere distance (MID), and mixing ratio of microspheres was developed for theoretical relations. The statistical model consists of cubic cells which can optionally be simple cubic (SC) or face centred cubic (FCC) or body centred cubic (BCC) cells. The theoretical relations were verified with experimental/numerical data for various mixtures of microspheres and found to be capable of predicting effects of microsphere size and mixture ratio of microsphere size groups on VER under various conditions arising from starch content in binder and IBVMS.
Materials & Design, 2013
ABSTRACT The mechanical and thermal properties of the grouts are critical to their potential appl... more ABSTRACT The mechanical and thermal properties of the grouts are critical to their potential application as infill materials in structural repair. In this paper, the mechanical and thermal behaviour of five epoxy based grouts were investigated to identify their prospects as a component of the composite repair for steel pipelines. The compressive strength and stiffness of the grouts are found to be 52–120 MPa and 1.7–11 GPa, respectively. The tensile, flexural and shear strengths of the grouts are found to be within the ranges of 11–32, 27–53, and 13–30 MPa, respectively. The tensile and flexural moduli range within 3–17, and 4–13 GPa, respectively. Thermal analysis of the grouts suggests that the glass transition temperature (Tg) within 60 and 90 °C which also provide the thermal applicability limits for the grouts in the composite repair of steel pipes. The development of compressive properties of three selected grouts over 28 days period was also investigated as well as the effect of the addition of coarse fillers.
Materials & Design, 2014
This paper gives an overview of utilising natural textile materials as reinforcements for enginee... more This paper gives an overview of utilising natural textile materials as reinforcements for engineering composites applications. The definition and types of textile materials are addressed to provide readers a thoughtful view on the role of these materials in a structural composite system. Available material properties of natural textile and their composites are critically reviewed here. In general, these materials are categorised into fibre, yarn and fabric forms. The load bearing capacity of natural textile fibre reinforced polymer composites is governed by the quantity, alignment and dispersion properties of fibres. It has been found that the natural fibre reinforced composites are limited to use in low to medium load bearing applications. However, a limited research work has been performed to date and there is a significant gap between the high performance textile fabric and their use as reinforcement in fibre reinforced composite materials.
Key Engineering Materials, 2011
1 Department of Materials and Metallurgical Engineering, Bangladesh University of Engineering and... more 1 Department of Materials and Metallurgical Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh 2 Centre of Excellence in Engineered Fibre Composites, University of Southern Queensland, Toowoomba, Queensland 4350, ...
Materials & Design, 2013
ABSTRACT This paper proposed a lifetime prediction model to characterise the damage response of s... more ABSTRACT This paper proposed a lifetime prediction model to characterise the damage response of square fibre-reinforced polymer (FRP) composite tubes under repeated axial impact. The model, which is a function of damage parameter D and normalised impact number Nf, used an energy-based approach. Series of impact and quasi-static compressive tests on composite tubes were undertaken to determine the required parametric values and to validate the reliability of the proposed model. Testing was performed by axially impacting 100 mm FRP pultruded tubes to 130 repeated impacts or up to collapse using a drop-mass type impact apparatus. The quasi-static compressive test was conducted using a 2000 kN capacity servo-hydraulic compressive testing machine. Results showed that the impact fatigue curve of the composite tubes follows a power function relationship. The variation of incident energies Ein between the fitting curve and experimental data is less than 3%. A good agreement is observed between the experimental data points and the prediction model.
Key Engineering Materials, 2011
Table 1: Population of timber bridges in Australia [1] ... Polymer Based Filler Materials as Infi... more Table 1: Population of timber bridges in Australia [1] ... Polymer Based Filler Materials as Infill for GFRP Pile Connector ... Chamila Sampath Sirimanna a , Md Mainul Islam b and Thiru Aravinthan c ... Centre of Excellence in Engineered Fibre Composites, University of Southern ...
Materials and Manufacturing Processes, 2008
Syntactic foam manufacturing method, 'post-mold processing', based on the buoyancy of hollow micr... more Syntactic foam manufacturing method, 'post-mold processing', based on the buoyancy of hollow microspheres was studied for potential building material applications. The post-mold processing involves mixing starch particles and ceramic hollow microspheres in water. It was found starch particles tend to adhere to hollow microspheres, forming agglomerations, during mixing. It was also found that 'volume fraction of starch particles on a microsphere making a relative density of 1.0' (VFSMRD) is an indicator for mixture volume transitions. Both the maximum total volume expansion of mixture and a transition in formation, after phase separation, of mixture volume in water referred to as 'top phase' in a mixing container were taken place at a calculated VFSMRD.
Journal of Materials Science, 2007
Abstract Novel syntactic foams for potential building material applications were developed using ... more Abstract Novel syntactic foams for potential building material applications were developed using starch as binder and ceramic hollow micro-spheres available as waste from coal-fire power stations. Foams of four different micro-sphere size groups were manufactured with ...
Composite Structures, 2013
ABSTRACT Series of impact tests were conducted to investigate the behaviour of fibre reinforced p... more ABSTRACT Series of impact tests were conducted to investigate the behaviour of fibre reinforced polymer (FRP) composite tubes under axial impact. The effects of damage parameters such as the mass of the impactor, incident energy and number of impacts on their behaviour were studied. The tests were performed by axially impacting 100 mm square FRP pultruded tubes to 130 repeated impacts or up to collapse using a drop-weight type impact apparatus. Impact masses and drop heights were varied to produce incident energies ranging from 158 to 635 J. The results showed that the peak load degradation of collapsed tubes is more rapid when it is impacted by higher incident energy. Heavier impactors caused more damage to the tubes at lower incident energies as reflected by their lower number of impacts to collapse, however, its effect gradually decreases at relatively higher energies. The incident energy is a major damage factor in the collapse of the tubes for lower number of impacts. However, the number of impacts becomes the key factor when the value of the incident energy decreases.
Composite Structures, 2013
ABSTRACT Metal pipelines are the most efficient and safe ways for oil and gas transportation over... more ABSTRACT Metal pipelines are the most efficient and safe ways for oil and gas transportation over a long distance. At present, almost all pipelines are made by ferrous steel which is sensitive to corrosion at harsh working environments, particularly in the presence of salty water and sulphur ingress media. For years, the most traditionally-credible solution for a damaged steel pipe is to remove the pipe entirely or just a localised damaged section and then replace it by a new one or cover with a steel patch through welding, respectively. Welding or fixing the steel patch is a bulky process especially if the location is underground or underwater. Thus, many researchers have been striving to find effective and safe repair solutions which are light, fast and easy to handle. Numerous literatures have shown that fibre-reinforced polymer-based composites can be effectively used for steel pipe repairs. Considerable research has been carried out on the repair of corroded and gouged pipes incorporating with fibre-reinforced composite wraps. This paper provides a comprehensive review on the use of fibre-reinforced polymer composites for in-air, underground and underwater pipeline repairs. Future developments and prospects on this are also discussed. Critical aspects of technical challenges, benefits and shortcomings in determining the feasibility and suitability for repair systems involving the composites are also presented.
Composite Structures, 2010
An innovative fibre composite sandwich panel made of glass fibre reinforced polymer skins and a m... more An innovative fibre composite sandwich panel made of glass fibre reinforced polymer skins and a modified phenolic core material was developed for building and other structural applications. The behaviour of this new generation sandwich panel was studied with ...
Composite Structures, 2012
... Unlike the two previous studies, Sakr et al. [5] characterised the interface friction of FRP ... more ... Unlike the two previous studies, Sakr et al. [5] characterised the interface friction of FRP materials and sand via pull-out and interface shear tests. ... Recently, Sakr et al. [33] developed a driving technique called toe driving to install the hollow FRP piles into granular soils. ...
Advances in Materials Science and Engineering, 2013