IBRAHIM HASSAN KOBE

@unilorin.edu.ng

Lecturer, Faculty of Engineering and Technology
University of Ilorin

EDUCATION

Federal University of Technology Minna: Minna, Niger, NG
2012-11-27 to 2015-05-08 | Master in Mechanical Engineering (Industrial and Production Engineering) (Mechanical Engineering)

Federal University of Technology Minna: Minna, Niger, NG
2004-11-27 to 2010-04-28 | B.Eng (Mechanical Engineering)

RESEARCH, TEACHING, or OTHER INTERESTS

Mechanical Engineering, Industrial and Manufacturing Engineering, Biomedical Engineering, Renewable Energy, Sustainability and the Environment

Scopus Publications

870

Scholar Citations

Scholar h-index

Scholar i10-index

Scopus Publications

Structural simulation of Ti–Ha–CaCO<inf>3</inf> biocomposites using finite element analysis (FEA) for biomechanical stability of hip implant
Hassan Kobe Ibrahim, Mathew Sunday Abolarin, Asipita Salawu Abdulrahman, Peter Olorunleke Omoniyi, Rasheedat Modupe Mahamood, Tien-Chien Jen, and Esther Titilayo Akinlabi
Springer Science and Business Media LLC
AbstractThe structural integrity of new biocomposite implants is critical in ensuring the success of biomedical implants under physiological loading conditions. Studying the stress distribution, deformation, and potential failure modes under different loading scenarios is complex, expensive, and time-consuming, as it involves repeated surgery on clinical assessment. The present study aims to investigate the biomechanical stability of hip implants made of a Ti–Ha–CaCO3 biocomposite using finite element analysis. The Ti–Ha–CaCO3 biocomposite was modeled and simulated using Solidworks. The model mesh was generated to represent the implant’s geometry accurately, and normal human activities (standing and jumping) were considered the boundary conditions with the lower part of the femur fixed. The model was subjected to static loading following ISO 7206-4 with an equivalent load of 2300 N according to ASTM F2996-13 standard. The Ti–Ha–CaCO3 biocomposite demonstrated outstanding biomechanical stability under loading circumstances. The maximum von Mises stress (354.7 MPa) observed with the GSB-femur model in the implant was below the yield strength of the titanium implant, indicating that the implant can withstand applied loads without experiencing permanent deformation. However, 74.11 MPa was obtained as acceptable von Mises stress using GSB intramedullary rods for bone fixation. The most stable implant is DSB, with the lowest displacement value of 2.68 mm. Low equivalent strains were achieved for all the implants, as the highest strain (0.012) was obtained in the simulation of the stem DSB-femur model. Low-stress signals (SS) were obtained for the implant-femur models, indicating they are suitable for replacing bone for that loading. The DSB (7.19) is the most suitable among the studied stem-femur models, and GSB (0.87) remains the suitable intramedullary rod-femur model with the lowest SS.

Biomechanical and Physical Properties Selection of Ti-Ha-CaCO<inf>3</inf> Biocomposite Prostheses for Replacement of Bone Atrophy
H. K. Ibrahim, M. S. Abolarin, A. S. Abdulrahman, O. Adedipe, and U. G. Okoro
African Journals Online (AJOL)
Traditional prosthetic materials often lack the desired properties to mimic the mechanical behaviour of natural bone, leading to complications and reduced implant longevity. This study aims to conduct a biomechanical and physical properties selection analysis for biocomposite prostheses' suitable for replacing bone atrophy. This involves evaluating the mechanical properties of developed biocomposites with different structures (dense, porous and gradient) to ensure compatibility with the mechanical properties of bone. The radar chart was adopted to compare and evaluate the mechanical strength of various biocomposite implants and identify the most suitable prosthesis for load-bearing bone replacement. The study utilises powder metallurgy, scanning electron microscopy (SEM), and ImageJ software to produce and characterise the pore size distribution of the biocomposites, respectively. The findings of this study revealed the gradient and porous biocomposites exhibited desired mechanical properties with porosity of 20.67 and 27.72 % pore size up to 134 and 256 μm, compressive strength of 174 and 149.29 MPa and compressive modulus of 30.42 and 28.3 GPa respectively. The SEM analysis, coupled with pore size distribution and porosity percentage measurements, offers valuable information for designing and fabricating biomaterials with enhanced properties. The gradient biocomposite was identified to be the best sample for load-bearing bone replacements by the selection analysis because of its high compressive strength and low modulus, which is within the established cortical bone mechanical properties.

Development and analysis of friction material for eco-friendly brake pad using seashell composite
Adebayo Adekunle, Mojeed Okunlola, Peter Omoniyi, Adekunle Adeleke, Peter Ikubanni, Tajudeen Popoola, and Kobe Ibrahim
SCI AND TECH UNIVERSAL INC
Asbestos has been banned in many countries as a result of its negative effects on the environment and human health. As a result, a human-friendly friction material is required to replace asbestos in brake pads. Hence, the powder metallurgy technique was undertaken to develop friction material from locally sourced asbestos-free materials. Seashell was used as base elements with other additives. The filler material considered had a particulate size of 300 µm

Mechanical and Corrosion Protection Characteristics of CNTs/epoxy resin Nanocomposite Coating on Buried API 5L X65 Steel Storage Tank
Aliyu Shehu Buhari, , Asipita Salawu Abdulrahman, Sunday Albert Lawal, Ambali Saka Abdulkareem, Rasheed Aremu Muriana, Jimoh Oladejo Tijani, Hassan Kobe Ibrahim, Yusuf Olanrewaju Busari, ,et al.
Penerbit Universiti Sains Malaysia
The storage of petroleum products in buried metal tanks to ensure safety is common practice. However, the integrity of these tanks could be compromised by soil corrosion with economic and environmental consequences. This study examines carbon nanotubes mechanical and anti-corrosive capabilities (CNTs) and epoxy resin coating on steel tanks. The presence of corrosive ions, resistivity, and pH values were all tested in the soil sample. CNT was mixed in proportions of 1.5, 2.5, 3.5 and 4.5 weight percent of epoxy resin to create the coatings. The morphology of uncoated steel, epoxy, and CNTs/ epoxy resin-coated steel specimens was studied using high-resolution scanning electron microscopy (HRSEM) equipment with energy dispersive x-ray spectroscopy (EDX). Electrochemical impedance spectroscopy (EIS) was used for corrosion analysis, and the morphological result was established. The average ions content soil samples showed 272 mg/kg chloride, 467.20 mg/kg sulphate and 167.40 Ω-m for the average resistivity value. The sample’s pH was acidic because it fell within 6.11–7.48. The tensile strength, hardness, and tensile modulus of epoxy resin with CNTs increase with CNTs. The addition of 3.5% CNTs has the best effect on the mechanical strength of the composite. The nanocomposite coatings exhibited considerably superior conductors, according to the EIS investigation. Thus, the hybrid of epoxy and CNTs increases the hydrophobicity of the coated surface.

Thermo-economic feasibility analysis of trilateral-cycle power generators for waste heat recovery-to-power applications
Habeeb A. AJIMOTOKAN, Isiaka AYUBA, and Hassan K. IBRAHIM
Journal of Thermal Engineering
The trilateral cycle (TLC), a promising alternative waste heat recovery-to-power cycle, is receiving increasing attention due to feats such as the high thermal match between the exergy of the heat source temperature profiles and its working fluid. Although the TLC has neither been broadly applied nor commercialised because of its thermo-economic feasibility considerations. This study examined the thermo-economic analysis of different TLC power generator configurations; i.e., the saturated subcritical simple (non-recuperative) and recuperative cycles using n-pentane as the working fluid for low-grade waste heat recovery-to-power generation. Based on the thermodynamic and economic analyses, the feasibility analysis models of the cycles were established using Aspen Plus, considering efficiency, cost, and expected operating and capacity factors. Furthermore, the capacity factor, specific investment cost (SIC), and payback period (PBP), among other, were used to evaluate the cycle design configurations and sizes. The SICs of the simple and recuperative TLCs were 3,683.88 $/kW and 4,220.41 $/kW, and their PBPs were 8.43 years and 8.55 years, respectively. The simple TLC had a lower investment ratio of 0.24 compared to an investment ratio of 0.28 for the recuperative TLC. These economic values suggest that the simple TLC is more cost-effective when compared with the recuperative TLC because the recuperation process does not recompense the associated cost, making it unattractive.

Numerical Evaluation of Fatigue Crack Growth of Structural Steels Using Energy Release Rate with VCCT
Yusuf O. Busari, Yupiter H. P. Manurung, Martin Leitner, Yusuf L. Shuaib-Babata, Muhd F. Mat, Hassan K. Ibrahim, David Simunek, and Mohd Shahar Sulaiman
MDPI AG
This research presents the numerical evaluation of fatigue crack growth of structural steels S355 and S960 based on Paris’ law parameters (C and m) that are experimentally determined with a single edge notched tension (SENT) specimen using optical and crack gauge measurements on an electromotive resonance machine at constant amplitude load. The sustainable technique is replacing destructive, time-consuming and expensive approaches in structural integrity. The crack propagation is modelled using the 3D finite element method (FEM) with adaptive remeshing of tetrahedral elements along with the crack initiator elements provided in simulation software for crack propagation based on linear elastic fracture mechanics (LEFM). The stress intensity is computed based on the evaluation of energy release rates according to Irwin’s crack closure integral with applied cyclic load of 62.5 MPa, 100 MPa and 150 MPa and stress ratios of R = 0 and 0.1. In order to achieve optimized mesh size towards load cycle and computational time, mesh and re-mesh sensitivity analysis is conducted. The results indicate that the virtual crack closure technique VCCT-based 3D FEM shows acceptable agreement compared to the experimental investigation with the percentage error up to 7.9% for S355 and 12.8% for S960 structural steel.

RECENT SCHOLAR PUBLICATIONS

Modelling, Simulation and Experimental Validation of Half Semi-Truck Suspension System Vibration
HK Ibrahim, OT Popoola, EA Akinola, FW Osatuyi, ZO Tijani, ...
Nigerian Journal of Technological Development 22 (1), 236-244 2025

Design and Fabrication of Solar and Gasoline Dual-Powered Lawn Mower
KO Abdulrahman, HK Ibrahim, KK Adeleke, BO Azeez, IA Jamiu, ...
ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT 21 (1), 136-144 2025

Structural simulation of Ti–Ha–CaCO₃ biocomposites using finite element analysis (FEA) for biomechanical stability of hip implant
HK Ibrahim, MS Abolarin, AS Abdulrahman, PO Omoniyi, RM Mahamood, ...
International Journal on Interactive Design and Manufacturing (IJIDeM), 1-14 2024

Physio-Mechanical Characterization of Recycled Polyethylene Terephthalate and Soda-Lime Glass Waste Composite for Roof Tile Application.
YO Busari, IS Ibrahim, KS Ajao, NM Abbas, JO Adegbola, HK Ibrahim, ...
Journal of Polymer Materials 41 (3) 2024

Biomechanical and physical properties selection of Ti-Ha-CaCO3 biocomposite prostheses for replacement of bone atrophy
HK Ibrahim, MS Abolarin, AS Abdulrahman, O Adedipe, UG Okoro
Nigerian Journal of Technological Development 21 (1), 42-52 2024

The effect of land tenure across food security outcomes among smallholder farmers using a flexible conditional difference-in-difference approach
HK Ibrahim, SL Hendriks, HC Schnfeldt
International Journal of Agricultural Sustainability 21 (1), 2220900 2023

Optimisation of synthesis parameters for Co-Mo/MgO catalyst yield in MWCNTs production
AS Buhari, AS Abdulrahman, SA Lawal, AS Abdulkareem, RA Muriana, ...
Nigerian Journal of Technological Development 20 (2), 93-102 2023

Development and analysis of friction material for eco-friendly brake pad using seashell composite
A Adekunle, M Okunlola, P Omoniyi, A Adeleke, P Ikubanni, T Popoola, ...
Scientia Iranica 30 (5), 1562-1571 2023

Biosynthesis, characterization and antivenom activities of Moringa oleifera silver nanoparticles: an experimental approach
AO Adeyi, TO Olowookorun, BS Ajisebiola, HA Labulo, OE Adeyi, ...
Zoologist (The) 23 (1), 20-30 2023

Selection and Pore Distribution Analysis of Bio-composite Implants for Load-bearing Bone Replacement
HK Ibrahim, MS Abolarin, AS Abdulrahman, O Adedipe, UG Okoro
1st Faculty of Engineering and Technology Conference (FETiCON 2023 2023

Mechanical and corrosion protection characteristics of CNTs/epoxy resin nanocomposite coating on buried API 5L X65 steel storage tank
AS Buhari, AS Abdulrahman, SA Lawal, AS Abdulkareem, RA Muriana, ...
Journal of Physical Science 34 (1), 87-108 2023

Thermo-economic feasibility analysis of trilateral-cycle power generators for waste heat recovery-to-power applications
HA Ajımotokan, I Ayuba, HK Ibrahım
Journal of Thermal Engineering 8 (6), 786-797 2022

DEVELOPMENT OF FUNCTIONAL OIL-ADSORPTION MATERIAL FROM WATERMELON RIND FOR REMEDIATION OIL SPILL RELATED POLLUTION
KW Saleeman, HK Ibrahim, YO Busari, YL Shuain-Babata, AG Aduagba, ...
Acta Technica Corviniensis-Bulletin of Engineering 15 (3), 103-109 2022

Modelling of Corrosion Inhibition of Cucumber Plant Extracts on AISI 1007 Steel in Seawater
YL SHUAIB-BABATA, HK IBRAHIM, YO BUSARI, RM MAHAMOOD, ...
The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy 2022

Numerical evaluation of fatigue crack growth of structural steels using energy release rate with VCCT
YO Busari, YHP Manurung, M Leitner, YL Shuaib-Babata, MF Mat, ...
Applied Sciences 12 (5), 2641 2022

Production of automobile brake pads from palm kernel shell, coconut shell, seashell and cow bone
OT Popoola, AB Rabiu, HK Ibrahim, PO Omoniyi, MA Babatunde, ...
Adeleke University Journal of Engineering and Technology 4 (2), 92-101 2021

Socio-Economic Characteristics of Camel Farmers and Types of Feed Resources Offered to Dromedary Camels as Supplement in Northwestern Nigeria
H Ibrahim
Nigerian Journal of Animal Science and Technology (NJAST) 4 (3), 105-113 2021

Soil greenhouse gas fluxes from a humid tropical forest and differently managed urban parkland in Singapore
K Stefaner, S Ghosh, MLM Yusof, H Ibrahim, E Leitgeb, A Schindlbacher, ...
Science of the Total Environment 786, 147305 2021

Optimization of photovoltaic-wind hybrid system for electrifying university of Ilorin E-library
OT Popoola, AB Rabiu, HK Ibrahim, KR Ajao, JT Bamigboye, IT Idakwoji
Adeleke University Journal of Engineering and Technology 4 (1), 55-66 2021

Multi-objective optimization to enhance the performance of thermo-electric generator combined with heat pipe-heat sink under forced convection
A Elghool, F Basrawi, TK Ibrahim, H Ibrahim, M Ishak, MH bin Yusof, ...
Energy 208, 118270 2020

MOST CITED SCHOLAR PUBLICATIONS

A review on heat sink for thermo-electric power generation: Classifications and parameters affecting performance
A Elghool, F Basrawi, TK Ibrahim, K Habib, H Ibrahim, DMND Idris
Energy conversion and management 134, 260-277 2017
Citations: 211

Thermal analysis of earth-to-air heat exchanger using laboratory simulator
TM Yusof, H Ibrahim, WH Azmi, MRM Rejab
Applied Thermal Engineering 134, 130-140 2018
Citations: 56

Inhibitive performance of bitter leaf root extract on mild steel corrosion in sulphuric acid solution
IC Awe, AS Abdulrahaman, HK Ibrahim, AG Kareem, SM Adams
American Journal of Materials Engineering and Technology 3 (2), 35-45 2015
Citations: 52

Enhancing the performance of a thermo-electric generator through multi-objective optimisation of heat pipes-heat sink under natural convection
A Elghool, F Basrawi, H Ibrahim, TK Ibrahim, M Ishak, TM Yusof, ...
Energy conversion and management 209, 112626 2020
Citations: 50

Effect of perforation area on temperature distribution of the rectangular fins under natural convection
TK Ibrahim, F Basrawi, MN Mohammed, H Ibrahim
ARPN Journal of Engineering and Applied Sciences 11 (10), 6371-6375 2016
Citations: 37

Optimal unit sizing of biogas-fuelled micro gas turbine cogeneration systems in a sewage treatment plant
F Basrawi, H Ibrahim, T Yamada
Energy Procedia 75, 1052-1058 2015
Citations: 28

A review of ground heat exchangers for cooling application in the Malaysian climate
TM Yusof, S Anuar, H Ibrahim
Journal of Mechanical Engineering and Sciences 8, 1426-1439 2015
Citations: 27

A new swarm intelligence approach for optimal chiller loading for energy conservation
MH Sulaiman, H Ibrahim, H Daniyal, MR Mohamed
Procedia-Social and Behavioral Sciences 129, 483-488 2014
Citations: 27

Numerical investigation of ground cooling potential for Malaysian climate
TM Yusof, S Anuar, H Ibrahim
International Journal of Automotive and Mechanical Engineering 10, 2081-2090 2014
Citations: 21

The corrosion inhibition of mild steel in sulphuric acid solution by adsorption of African Perquetina leaves extract
AS Abdulrahman, KA Ganiyu, IH Kobe, AI Caroline
International Journal of Innovative Research in Science, Engineering and 2015
Citations: 20

The thermal characteristics and performance of a ground heat exchanger for tropical climates
TM Yusof, H Ibrahim, WH Azmi, MRM Rejab
Renewable Energy 121, 528-538 2018
Citations: 19

Optimum thickness of wall insulations and their thermal performance for buildings in Malaysian climate
F Basrawi, H Ibrahim, MY Taib, GC Lee
International Journal of Automotive and Mechanical Engineering 8, 1207-1217 2013
Citations: 17

Study on the performance of a thermo-electric generation model with two different materials of heat pipe-heat sink
A Elghool, F Basrawi, H Ibrahim, TK Ibrahim, SA Sulaiman, M Ishak
MATEC Web of Conferences 225, 04009 2018
Citations: 13

Evaluation of the foundry properties of Oyun river (Ilorin) moulding sand
YL Shuaib-Babata, HK Ibrahim, KS Ajao, IO Ambali, MO Bello
Adeleke University Journal of Engineering and Technology 2 (1), 12-24 2019
Citations: 12

Inhibitive potential of Prosopis Africana on corrosion of low carbon steel in 1M hydrochloric acid medium
YL SHUAIB-BABATA, KH IBRAHIM, OI AMBALI, AR YAHYA, SK AJAO, ...
International Journal of Engineering Materials and Manufacture 4 (2), 66-76 2019
Citations: 11

Investigation on the performance of a prototype of thermo-electric generation with heat pipe-heat sink
A Elghool, F Basrawi, H Ibrahim, T Ibrahim
MATEC Web of Conferences 131, 01005 2017
Citations: 11

Effect of solar fraction on the economic and environmental performance of solar air-conditioning by adsorption chiller in a tropical region
F Basrawi, TK Ibrahim, G Chui Lee, K Habib, H Ibrahim
Journal of Solar Energy Engineering 137 (6), 061009 2015
Citations: 11

Assessment of physicomechanical properties of clay deposits in Asa Local Government Area of Kwara State, Nigeria for industrial applications
YL Shuaib-Babata, IO Ambali, HK Ibrahim, KS Ajao, ZU Elakhame, ...
Journal of Research Information in Civil Engineering 16 (2), 2727-2753 2019
Citations: 10