3D printing; digital light processing; microneedles; piercing; mechanical properties; biocompatibility

Ghanizadeh Tabriz, Atabak, Viegas, Beatriz, Okereke, Michael ORCID: 0000-0002-2104-012X , Uddin, Md Jasim, Arribas Lopez, Elena, Zand Fard, Nazanin ORCID: 0000-0003-2058-2354 , Ranatunga, Medhavi, Getti, Giulia ORCID: 0000-0003-1402-8496 and Douroumis, Dionysios ORCID: 0000-0002-3782-0091 (2022) Evaluation of 3D printability and biocompatibility of microfluidic resin for fabrication of solid microneedles. Micromachines, 13:1368. pp. 1-16. ISSN 2072-666X (Online) (doi:https://doi.org/10.3390/mi13091368)

A. Plytron™,A. Polymer Matrix Composites,B. Cyclic Flexural Response,B. Three Point Bending

Okereke, Michael I ORCID: 0000-0002-2104-012X (2016) Flexural response of polypropylene/E-glass fibre reinforced unidirectional composites. Composites Part B: Engineering, 89. pp. 388-396. ISSN 1359-8368 (doi:https://doi.org/10.1016/j.compositesb.2016.01.007)

A. Polymer–matrix composites (PMCs), C. Computational modelling, C. Numerical analysis, E. Weaving, virtual testing

Okereke, M.I. ORCID: 0000-0002-2104-012X , Akpoyomare, A.I. and Bingley, M.S. (2014) Virtual testing of advanced composites, cellular materials and biomaterials: A review. Composites Part B: Engineering, 60. 637 - 662. ISSN 1359-8368 (doi:https://doi.org/10.1016/j.compositesb.2014.01.007)

Effective elastic properties, finite element analysis (FEA), boundary conditions, virtual testing, homogenization, fibre reinforced composites, 3D representative volume elements

Akpoyomare, A. I. and Okereke, M. I. ORCID: 0000-0002-2104-012X (2013) A virtual test-bed for the prediction of holistic effective elastic properties of UD composites. In: 19th International Conference on Composite Materials (ICCM19), 28 JUL 2013 - 2 AUG 2013, Montreal, Canada.

Effective properties; Periodic boundary condition; Textile composite; Meso-scale modelling; Finite element; Heterogeneous materials; Virtual testing

Akpoyomare, A. I., Okereke, M. I. ORCID: 0000-0002-2104-012X and Bingley, M. S. (2016) Virtual testing of composites: Imposing periodic boundary conditions on general finite element meshes. Composite Structures, 160. pp. 983-994. ISSN 0263-8223 (Print), 1879-1085 (Online) (doi:https://doi.org/10.1016/j.compstruct.2016.10.114)

Erosive wear; High strain rate; Mechanical properties; Microstructures; Polymer Composites

Lakshman, Biju, Deng, Tong ORCID: 0000-0003-4117-4317 , Bradley, Michael S. A., Okereke, Michael ORCID: 0000-0002-2104-012X and McIlhagger, A. T. (2014) Erosive wear of polymer composite materials and its correlation with high strain rate mechanical properties. In: 2nd International Conference on Abrasive Processes - ICAP 2014 (Programme and Abstract Book). ICAP, Cambridge, United Kingdom, p. 24.

Finite element method, Thermoplastic matrix composite, Micromechanical

Okereke, Michael ORCID: 0000-0002-2104-012X , Buckleyb, C.P and Le, Chi ORCID: 0000-0002-5168-2297 (2010) Micromechanical modelling of finite deformation of thermoplastic matrix composites. In: Solid Mechanics and Materials Engineering Group seminar, 14 June 2010, Oxford, UK.

Geometry, Meso-mechanical modelling, Virtual Testing, Woven textile composites

Akpoyomare, Ambrose I., Okereke, Michael ORCID: 0000-0002-2104-012X , Bingley, Mark, McIlhagger, A. T. and Archer, E. (2015) Virtual geometric realization of woven textile composites. In: Proceedings of 20th International Conference on Composite Materials. ICCM, Copenhagen, Denmark.

Parkinson’s disease; Orthosis; Ergonomics; Electromyography

Andrade, Adriano O., Bourget, Julien, Costa, Samila, Pereira, Adriano, Okereke, Michael I. ORCID: 0000-0002-2104-012X and Vieira, Marcus Fraga (2018) Ergonomic assessment of an active orthosis for the rehabilitation of flexion and extension of Wrist. In: World Congress on Medical Physics and Biomedical Engineering 2018. IFMBE Proceedings, 68/2 . Springer, Singapore, pp. 565-568. ISBN 978-9811090370 ISSN 1680-0737 (Print), 978-9811090387 (Online) (doi:https://doi.org/10.1007/978-981-10-9038-7_104)

Personalised health care, Medical product development, Implants, Surgical tools, Orthotics

Le, C.H., Okereke, M.I. ORCID: 0000-0002-2104-012X , Nguyen, V.H., Dao, V.D., Soe, S., Zlatov, N. and Le, T.H. (2011) Personalised medical product development: Methods, challenges and opportunities. Romanian Review Precision Mechanics, Optics and Mechatronics, 40. pp. 11-20. ISSN 1584-5982

Le, Chi ORCID: 0000-0002-5168-2297 , Okereke, Michael ORCID: 0000-0002-2104-012X , Nguyen, Vu Hieu, Dao, Viet Dzung, Soe, Shwe, Zlatov, Nikolay and Le, Tan Hung (2011) Personalised medical product development: Methods, challenges and opportunities. In: Proceedings of International Conference On Innovations, Recent Trends And Challenges In Mechatronics, Mechanical Engineering And New High-Tech Products Development – MECAHITECH’11, vol. 3, year: 2011. INCDMTM, pp. 140-149.

Polypropylene, Impact rates response

Okereke, Michael ORCID: 0000-0002-2104-012X , Le, Chi ORCID: 0000-0002-5168-2297 and Buckley, C.P (2012) A new constitutive model for prediction of impact rates response of polypropylene. EPJ Web of Conferences, 26:04031. ISSN 2100-014X (doi:https://doi.org/10.1051/epjconf/20122604031)

Polypropylene; Semicrystalline polymers; Constitutive modelling; Mechanical relaxations; Two-process model

Okereke, Michael ORCID: 0000-0002-2104-012X and Akpoyomare, Ambrose I. (2017) A constitutive model for semi-crystalline polymers: A multiple viscoelastic relaxation processes implementation. In: COMPLAS2017: XIV International Conference on Computational Plasticity: Fundamentals and Principles, 5-7 Sept, 2017, Barcelona, Spain. (Unpublished)

Textile composites; Geometric modelling; Meso scale; Virtual domains; Yarns; Cross-sectional shape functions

Akpoyomare, A. I., Okereke, M. I. ORCID: 0000-0002-2104-012X and Bingley, M. S. (2019) Generation of virtual geometric domains for woven textile composites. Composite Structures, 236:111624. ISSN 0263-8223 (Print), 1879-1085 (Online) (doi:https://doi.org/10.1016/j.compstruct.2019.111624)

Thermoplastic matrix composites; Impact behaviour; Rate-dependence; Finite deformation; High strain rates

Okereke, Michael ORCID: 0000-0002-2104-012X , Buckley, C. Paul and Akpoyomare, Ambrose I. (2017) The mechanism of rate-dependent off-axis compression of a low fibre volume fraction thermoplastic matrix composite. Composite Structures, 168. pp. 685-697. ISSN 0263-8223 (doi:https://doi.org/10.1016/j.compstruct.2017.02.070)

Void morphology; Solder thermal interface materials; Thermal resistance; Microelectronics; Three-dimensional; Virtual testing

Okereke, Michael I. ORCID: 0000-0002-2104-012X and Ling, Yuxiao (2018) A computational investigation of the effect of three-dimensional void morphology on the thermal resistance of solder thermal interface materials. Applied Thermal Engineering, 142. pp. 346-360. ISSN 1359-4311 (Print), 1873-5606 (Online) (doi:https://doi.org/10.1016/j.applthermaleng.2018.07.002)

effective properties, virtual testing/framework, periodic boundary conditions, three dimensional representative volume elements, Plytron

Okereke, M. I. ORCID: 0000-0002-2104-012X and Akpoyomare, A. I. (2013) A virtual framework for prediction of full-field elastic response of unidirectional composites. Computational Materials Science, 70. pp. 82-99. ISSN 0927-0256 (Online) (doi:https://doi.org/10.1016/j.commatsci.2012.12.036)

finite element modelling, FEM, material response, meshing, boundary condition, virtual domain, computational mechanics, element formulation, material models, future of FEM

Okereke, Michael ORCID: 0000-0002-2104-012X and Keates, Simeon ORCID: 0000-0002-2826-672X (2018) Computational mechanics and the finite element method. In: Choi, Seung-Bok, Duan, Haibin, Fu, Yili, Guardiola, Carlos and Sun, Jian-Qiao, (eds.) Finite Element Applications: A Practical Guide to the FEM Process. Springer Tracts in Mechanical Engineering . Springer, England, pp. 3-25. ISBN 978-3319671246 (doi:https://doi.org/10.1007/978-3-319-67125-3_1)

high-rate compression, polypropylene, strain-rate dependence

Okereke, M.I. ORCID: 0000-0002-2104-012X , Buckley, C.P. and Siviour, C.R. (2012) Compression of polypropylene across a wide range of strain rates. Mechanics of Time-Dependent Materials, 16 (4). pp. 361-379. ISSN 1385-2000 (Print), 1573-2738 (Online) (doi:https://doi.org/10.1007/s11043-012-9167-z)

microneedles; 3D printing; stereolithography; optimisation; inkjet coating

Economidou, Sophia, Pissinato Pere, Cristiane, Okereke, Michael ORCID: 0000-0002-2104-012X and Douroumis, Dionysios ORCID: 0000-0002-3782-0091 (2021) Optimisation of design and manufacturing parameters of 3D printed solid microneedles for improved strength, sharpness, and drug delivery. Micromachines, 12 (2). ISSN 2072-666X (doi:https://doi.org/10.3390/mi12020117)

pneumatic conveying; attractor; recurrence plot

Alshahed, Osamh Sabri Mohammed Atia, Kaur, Baldeep ORCID: 0000-0002-1762-3058 , Bradley, Michael and Okereke, Michael ORCID: 0000-0002-2104-012X (2023) Experimental and numerical study on gas-solid flow system of plastic pellets using recurrence quantification analysis of pressure sensor measurements. In: UKACM 2023 Conference (UK Association for Computational Mechanics), 19th - 21st April 2023, The University of Warwick, 19-21 April 2023. (Unpublished)

semicrystalline polymers, polypropylene, constitutive modeling, nonlinear rate-dependent response

Okereke, Michael I. ORCID: 0000-0002-2104-012X and Akpoyomare, Ambrose I. (2019) Two-process constitutive model for semicrystalline polymers across a wide range of strain rates. Polymer, 183:121818. ISSN 0032-3861 (doi:https://doi.org/10.1016/j.polymer.2019.121818)

solder voids, finite element analysis, solder die-attach, thermo-mechanical reliability, representative volume element

Otiaba, Kenny C., Okereke, M.I. ORCID: 0000-0002-2104-012X and Bhatti, R.S. (2014) Numerical assessment of the effect of void morphology on thermo-mechanical performance of solder thermal interface material. Applied Thermal Engineering, 64 (1–2). 51 - 63. ISSN 1359-4311 (doi:https://doi.org/10.1016/j.applthermaleng.2013.12.006)

solders, thermal interface materials, fatigue, lead-free

Ekpu, Mathias, Bhatti, Raj, Okereke, Michael I. ORCID: 0000-0002-2104-012X , Mallik, Sabuj and Otiaba, Kenny (2014) Fatigue life of lead-free solder thermal interface materials at varying bond line thickness in microelectronics. Microelectronics Reliability, 54 (1). 239 - 244. ISSN 0026-2714 (doi:https://doi.org/10.1016/j.microrel.2013.08.006)

thermal constriction, micro-contact, micro-gap, chip, heat sink

Ekpu, Mathias, Bhatti, Raj, Okereke, M.I. ORCID: 0000-0002-2104-012X , Mallik, Sabuj and Otiaba, Kenny (2014) The effect of thermal constriction on heat management in a microelectronic application. Microelectronics Journal, 45 (2). 159 - 166. ISSN 0026-2692 (doi:https://doi.org/10.1016/j.mejo.2013.10.011)

virtual testing, particulate, predictive modelling, periodic boundary conditions, representative volume element, Monte Carlo approach

Okereke, Michael ORCID: 0000-0002-2104-012X and Akpoyomare, Ambrose I. (2015) Virtual Testing Architecture for Prediction of Effective Properties of Particulate Composites. In: International Conference on Advances in Composite Materials and Structures. ICACMS, Istanbul Turkey, p. 4.