Current list of Academic Publications.
Bastola, A. K., Gannavarapu, M., Parry, L. A., & Shrestha, M. (2023). Magnetorheological brushes – Scarcely explored class of magnetic material. Journal of Magnetism and Magnetic Materials, 572, Article 170603. https://doi.org/10.1016/j.jmmm.2023.170603
Maskery I., Parry L. A., Padrao D., Hague R. J. M. & Ashcroft I. A., 2021. FLatt Pack: a research-focussed lattice design program. Additive Manufacturing. https://doi.org/10.1016/j.addma.2021.102510 [pdf]
Aboulkhair, N. T., Simonelli, M., Parry, L., Ashcroft, I., Tuck, C., & Hague, R. 3D printing of Aluminium alloys: Additive Manufacturing of Aluminium alloys using selective laser melting. Progress in Materials Science, 106 (July), 100578. https://doi.org/10.1016/j.pmatsci.2019.100578
Parry, L. A., Ashcroft, I. A., & Wildman, R. D. Geometrical effects on residual stress in selective laser melting. Additive Manufacturing, 166–175. https://doi.org/10.1016/j.addma.2018.09.026
Maskery, I., Aremu, A. O., Parry, L., Wildman, R. D., Tuck, C. J., & Ashcroft, I. A. Effective design and simulation of surface-based lattice structures featuring volume fraction and cell type grading. Materials & Design, 155, 220–232. https://doi.org/10.1016/j.matdes.2018.05.058
Hüsler, A., Haas, S., Parry, L., Romero, M., Nisisako, T., Williams, P., … Alexander, M. R. Effect of surfactant on: Pseudomonas aeruginosa colonization of polymer microparticles and flat films. RSC Advances, 8(28). https://doi.org/10.1039/c8ra01491d [PDF]
Hirsch M., Dryburgh P., Catchpole-Smith S., Patel R., Parry L., Sharples S.D., Ashcroft I.A. and Clare A.T. Targeted Rework Strategies for Powder Bed Additive Manufacture. https://doi.org/10.1016/j.addma.2017.11.011 [PDF]
Catchpole-Smith, S., Aboulkhair, N., Parry, L., Tuck, C., Ashcroft, I., & Clare, A. Fractal scan strategies for selective laser melting of ‘unweldable’ nickel superalloys. Additive Manufacturing, 15, 113–122. https://doi.org/10.1016/j.addma.2017.02.002 [PDF]
Parry, L., Ashcroft, I. A., & Wildman, R. D. Understanding the effect of laser scan strategy on residual stress in selective laser melting through thermo-mechanical simulation. Additive Manufacturing, 12. https://doi.org/10.1016/j.addma.2016.05.014. [PDF].
Investigation of residual stress in selective laser melting
The thesis documents work on investigating the generation of residual stresses created in the selective laser melting process by the use of a finite element thermo-mechanical model. The thermo-mechanical model incorporated an adaptive meshing strategy which was used in conjunction with the use of high performance computing facilities. These together significantly increased the computational throughput for simulating selective laser melting of a single layer. Additionally, a volumetric hatching method was created to generate the laser scan vectors used in the process, with the ability to both simulate and manufacture on selective laser melting machines. Several studies were also performed to investigate the role of laser parameters, geometry, and support structures in selective laser melting and their effect on the generation of residual stress. A multi-scale methodology was developed by combining information from the meso -scale obtained from the thermo-mechanical model to improve the efficiency of the simulation.
Thesis can be read here