Browsing by Author "Soboyejo, W. O."

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    Bioinspired Design
    (Trans Tech Publications Ltd., 2015-12-31) Owoseni, Tunji Adetayo; Olukole, S. G.; Gadu, A. I.; Malik, I. A.; Soboyejo, W. O.
    Bioinspired design involves the use of concepts observed in natural biological materials in engineering design. The hope is that the leveraging of biological materials in the engineering domain can lead to many technological innovations and novel products. This work presents the initial material characterization of kinixys erosa tortoise shell using a combination of x-ray diffraction, optical/scanning electron microscopy and micro-mechanical testing. The results were used in the analytical/computational modelling of shell structures. The potential implications or the results were then discussed to give fundamental understanding of deformation and stress responses of shell structures
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    Corrugated Laterite Based Ceramic Roof Tile Stabilized with Cement
    (IJET Publications-UK, 2014) Kolawole, F.O.; Adeniji, S. A.; Adeyinka, T. I.; Owoseni, Tunji Adetayo; Ngasoh, O. F.; Soboyejo, W. O.
    The use of laterite based material as ceramic roof tile contributes to the innovation and application of local materials within our immediate environment. In this study the aim is to design and produce corrugated laterite based roof tile and investigate its water absorption and penetration. Paste of laterite-cement mix was formed with water to cement ratio of 3:1. The percentage composition of the cement used was 15% and 20%. The paste was poured into a wooden frame (dimension of 200mm x 300mm x 20mm) with an underlying corrugated metal sheet, while another corrugated metal sheet was placed on the paste to ensure formation of the corrugated shape on both sides. Water analysis carried out on the cast samples showed that the sample with 20% cement composition had a better resistance to water absorption and penetration. The result of this study indicates that the formation of corrugated roofing tile using laterite material is feasible and it is possible to have good water resistant property if fully optimized.