Ismaila Idowu Ahmed
@unilorin.edu.ng
Associate Professor, Faculty of Engineering and Technology
University of Ilorin
RESEARCH, TEACHING, or OTHER INTERESTS
Mechanics of Materials, Materials Science, Polymers and Plastics, Materials Chemistry
Scopus Publications
Scopus Publications
Ismaila Idowu Ahmed, Adeolu Adesoji Adediran, Raheem Abolore Yahya, Taiwo Yahaya, Segun Isaac Talabi, Jeleel Adekunle Adebisi, Rasheedat Modupe Mahamood, Jamiu Kolawole Odusote, Mariam Kehinde Sulaiman, Lawrence Aderemi Olatunji,et al.
Elsevier BV
Jamiu Adetayo Adeniran, Jeleel Adekunle Adebisi, Segun Isaac Talabi, Taiwo Yahaya, Ismaila Idowu Ahmed, Rasheedat Modupe Mahamood, Mariam Kehinde Sulaiman, Lawrence Aderemi Olatunji, Jamiu Kolawole Odusote, and Suleiman Abdulkareem
Informa UK Limited
Adewale George Adeniyi, Sulyman A. Abdulkareem, Ebuka Chizitere Emenike, Maryam T. Abdulkareem, Kingsley O. Iwuozor, Mubarak A. Amoloye, Ismaila I. Ahmed, and Oyinlola E. Awokunle
Elsevier BV
I.I. Ahmed, A.M. Akintola, O.E. Afolabi, and J.A. Adebisi
Elsevier BV
I.I. Ahmed, J.A. Adebisi, J.O. Agunsoye, S.A. Bello, M.M. Ramakokovhu, M.O. Daramola, and S.B. Hassan
Elsevier BV
J.A. Adebisi, J.O. Agunsoye, I.I. Ahmed, S.A. Bello, M Haris, M.M. Ramakokovhu, and S.B. Hassan
Elsevier BV
Ismaila Idowu Ahmed, Ajadi Abdulafeez Buhari, Sulaiman Abdulkareem, Taiwo Yahaya, and Jeleel Adekunle Adebisi
ASTM International
Ismaila Idowu Ahmed, Aminat Titilayo Mohammed, Sulaiman Abdulkareem, Taiwo Yahaya, Ibrahim Owolabi Ambali, Bamidele Lawrence Bayode, and Jeleel Adekunle Adebisi
Springer Science and Business Media LLC
I.I. Ahmed, J.A. Adebisi, S. Abdulkareem, and A.H. Sherry
Elsevier BV
J.A. Adebisi, J.O. Agunsoye, S.A. Bello, I.I. Ahmed, O.A. Ojo, and S.B. Hassan
Elsevier BV
A. D. Adepoju, J. A. Adebisi, J. K. Odusote, I. I. Ahmed, and S. B. Hassan
Journal of Solid Waste Technology and Management
I. I. Ahmed, J. A. Adebisi, T. Yahaya, S. Abdulkareem, and A. H. Sherry
Springer Science and Business Media LLC
S. Abdulkareem, S. Ogunmodede, J.O. Aweda, A.T. Abdulrahim, T.K. Ajiboye, I.I. Ahmed, and J.A. Adebisi
International Journal of Technology
This paper reports on the investigation of thermal properties of Kapok, Coconut fibre and Sugarcane bagasse composite materials using molasses as a binder. The composite materials were moulded into 12 cylindrical samples using Kapok, Bagasse, Coconut fibre, Kapok and Bagasse in the ratios of (70:30; 50:50 and 30:70), Kapok and Coconut fibre in the ratios of (70:30; 50:50 and 30:70), as well as a combination of Kapok, Bagasse and Coconut fibre in ratios of (50:10:40; 50:40:10 and 50:30:20). The sample size is a 60mm diameter with 10mm – 22mm thickness compressed at a constant load of 180N using a Budenberg compression machine. Thermal conductivity and diffusivity tests were carried out using thermocouples and the results were read out on a Digital Multimeter MY64 (Model: MBEB094816), while a Digital fluke K/J thermocouple meter PRD-011 (S/NO 6835050) was used to obtain the temperature measurement for diffusivity. It was observed that of all the twelve samples moulded, Bagasse, Kapok plus Bagasse (50:50), Kapok plus Coconut fibre (50:50) and Kapok plus Bagasse plus Coconut fibre (50:40:10) has the lowest thermal conductivity of 0.0074, 0.0106, 0.0132, and 0.0127 W/(m-K) respectively and the highest thermal resistivity. In this regard, Bagasse has the lowest thermal conductivity followed by Kapok plus Bagasse (50:50), Kapok plus Bagasse plus Coconut fibre (50:40:10) and Kapok plus Coconut fibre (50:50).
I.I. Ahmed, B. Grant, A.H. Sherry, and J. Quinta da Fonseca
Elsevier BV
Ismaila Idowu Ahmed, Kazim Olawale Abdulkarim, Yahaya Taiwo, Ishaq Na Allah Aremu, and Abdulganiyu GF Alabii
SAGE Publications
This work describes numerical modelling of underground hydrocarbon storage tank dip gauge. The work was carried out at the request of a petroleum company faced with predicament, whereby three underground tanks, for the storage of hydrocarbon products, namely, Petroleum Motor Spirits, Automotive Gas Oil, and Dual Purpose Kerosene, were fully installed and buried in the earth without provision for the fluid measuring gauge. The objective was to design and fabricate a dip gauge with the design capacity of measuring up to 30,000 L of hydrocarbon from the underground storage tank. To achieve the objective of designing an accurate and reliable gauge, mathematical analysis of the available data of tanks was carried out using Newton–Raphson iteration method. A model dip gauge was designed and calibrated with the results of mathematical analysis. The dip gauge was designed with measurement capability between the range of 200–15,886 L and 400–31,765 L of hydrocarbon in the smaller and bigger tanks, respectively. Aluminium alloy 6063-T6 was used for fabrication of the gauge on account of its excellent strength and good corrosion resistance in relevant hydrocarbon environment.
Ismaila I Ahmed, Joao Q da Fonseca, and Andrew H Sherry
SAGE Publications
The effects of martensite development on lattice strain evolution during the in situ compression of austenitic stainless steels, Type 304L, at ambient and cryogenic temperatures were investigated. Engin-X neutron diffractometer was used to study the change in the lattice strain during the uniaxial compression to 10% strain in situ. The report found no evidence of martensite during the compression test at ambient temperature. Similarly, no martensite was observed at cryogenic temperatures up to the applied load of 200 MPa in the elastic region. Martensite was only observed during the plastic deformation at cryogenic temperatures up to the applied strain of 10%. The presence of martensite in the austenitic stainless steels microstructure reinforces the austenite matrix. This was evident from the decrease in the lattice strain as the deformation temperature decreases.
Ismaila I Ahmed, Joao Q da Fonseca, and Andrew H Sherry
SAGE Publications
This study was carried out to assess the effect of strain paths and residual delta ferrite on failure characteristics of austenitic stainless steels cold rolled to 20% reduction. Optical metallography was carried out to determine grain size and quantify residual delta ferrite. Mechanical tensile tests to failure along three orthogonal directions were carried out on annealed and 20% cold rolled samples to study the effects of strain paths on mechanical properties of the material. Post-mortem scanning electron microscopy was used to study fracture surface and cross-sectional views of the failed specimens. The yield strength of material cold rolled to 20% reduction increased relative to annealed material along the rolling and transverse directions by twice as much along the normal direction. The increase in the yield strength occurred at the expense of ductility which decreased by about half in all directions. It also emerged that material loaded along rolling and transverse directions showed a gradual failure (from rupture strength), while that loaded along the normal direction exhibited a rapid failure. Correlation between ferrite morphologies on the three orthogonal planes and failure characteristics on fracture surfaces were established. The scanning electron microscopic micrographs suggest that materials loaded along transverse and rolling directions failed with characteristic features of pure ductile failure, while specimen loaded along normal direction showed mixed features of ductile and brittle failure.