Publications

Dortkasli, K., Isik, M. and Demir, E., 2022. A thermal finite element model with efficient computation of surface heat fluxes for directed-energy deposition process and application to laser metal deposition of IN718. Journal of Manufacturing Processes, 79, pp.369-382.

Bayraktar, C. and Demir, E., 2022. A thermomechanical finite element model and its comparison to inherent strain method for powder-bed fusion process. Additive Manufacturing, 54, p.102708.

Rashed, A. and Demir, E., 2022. Design of variable stiffness composites for maximum fundamental frequency considering manufacturing constraints of tow steering. Composite Structures, 284, p.115151.

Demir, E., Sas, H.S., Isik, M., Gungor, E.A. and Davut, K., 2022. A numerical methodology for monitoring stress distributions and experimental proof of the concept on metal embedded thin polymer-matrix composites using X-ray Diffraction. Thin-Walled Structures, 173, p.108942.

J.-Sarand, M. H. and Demir, E., 2021. A physically based model for bcc materials including non-Schmid effects and its application to single crystals of $\alpha$-iron at different model scales. Modelling and Simulation in Materials Science and Engineering. https://doi.org/10.1088/1361-651X/abffe3

Demir, E. and Gutierrez-Urrutia, I., 2021. Investigation of strain hardening near grain boundaries of an aluminum oligocrystal: Experiments and crystal based finite element method. International Journal of Plasticity, 136, p.102898. https://doi.org/10.1016/j.ijplas.2020.102898

Shafighfard, T., Cender, T.A. and Demir, E., 2020. Additive manufacturing of compliance optimized variable stiffness composites through short fiber alignment along curvilinear paths. Additive Manufacturing, p.101728. https://doi.org/10.1016/j.addma.2020.101728

Khan, R.M.A., Tabrizi, I.E., Ali, H.Q., Demir, E. and Yildiz, M., 2020. Investigation on interlaminar delamination tendency of multidirectional carbon fiber composites. Polymer Testing, p.106653. https://doi.org/10.1016/j.polymertesting.2020.106653

Shafighfard, T., Demir, E. and Yildiz, M., 2019. Design of fiber-reinforced variable-stiffness composites for different open-hole geometries with fiber continuity and curvature constraints. Composite Structures, 226, p.111280. https://doi.org/10.1016/j.compstruct.2019.111280

Tabrizi, I.E., Khan, R.M.A., Massarwa, E., Zanjani, J.S.M., Ali, H.Q., Demir, E. and Yildiz, M., 2019. Determining tab material for tensile test of CFRP laminates with combined usage of digital image correlation and acoustic emission techniques. Composites Part A: Applied Science and Manufacturing, 127, p.105623. https://doi.org/10.1016/j.compositesa.2019.105623

Demir, E., Yousefi-Louyeh, P. and Yildiz, M., 2019. Design of variable stiffness composite structures using lamination parameters with fiber steering constraint. Composites Part B: Engineering, 165, pp.733-746. https://doi.org/10.1016/j.compositesb.2019.02.004

Demir, E. and Mercan, C., 2018. A physics-based single crystal plasticity model for crystal orientation and length scale dependence of machining response. International Journal of Machine Tools and Manufacture, 134, pp.25-41. https://doi.org/10.1016/j.ijmachtools.2018.06.004

Park, J.S., Yildizli, K., Demir, E., Dawson, P. and Matthew, M., 2018. Non-destructive characterization of subsurface residual stress fields and correlation with microstructural conditions in a shot-peened Inconel component, Experimental Mechanics, pp.1-18. https://doi.org/10.1007/s11340-018-0418-z

Demir E., 2017. A physically based constitutive model for FCC single crystals with a single state variable per slip system, Modelling Simul. Mater. Sci. Eng. 25 015009 (23pp) https://doi.org/10.1088/1361-651X/25/1/015009

Demir, E., Park, J.S., Miller, M.P. and Dawson, P.R., 2013. A computational framework for evaluating residual stress distributions from diffraction-based lattice strain data, Computer Methods in Applied Mechanics and Engineering, vol. 265, pp. 120-135. doi:10.1016/j.cma.2013.06.002

Demir, E., Roters, F. and Raabe, D., 2010. Bending of single crystal copper micro cantilever beams with cube orientation: Finite element model and experiments, J.Mech. and Phy. of Sol., vol. 58, pp. 1599-1612. doi:10.1016/j.jmps.2010.07.007

Demir, E., Raabe, D., 2010. Mechanical and microstructural single-crystal Bauschinger effects: Observation of reversible plasticity in copper during bending, Acta Mater., vol. 58, pp. 6055-6063. doi:10.1016/j.actamat.2010.07.023

Demir, E., Raabe, D., Roters, F., 2010. The mechanical size effect as a mean-field breakdown phenomenon: Example of microscale single crystal beam bending, Acta Mater., vol. 58, pp. 1876-1886. doi:10.1016/j.actamat.2009.11.031

Calcagnotto, M., Ponge, D., Demir, E., Raabe, D., 2010. Orientation gradients and geometrically necessary dislocations in ultrafine grained dual-phase steels studied by 2D and 3D EBSD, Mat. Sci. $\&$ Eng. A, vol. 527, pp. 2738-2746. doi:10.1016/j.msea.2010.01.004

Dmitrieva, O., Svirina, J.V., Demir, E., and Raabe, D., 2010. Investigation of the internal substructure of microbands in a deformed copper single crystal: experiments and dislocation dynamics simulation, Modelling Simul. Mater. Sci. Eng., vol 18, 14pp. doi:10.1088/0965-0393/18/8/085011

Demir, E., Raabe, D., Zaafarani, N. and Zaefferer, S., 2009. Investigation of the indentation size effect through the measurement of the geometrically necessary dislocations beneath small indents of different depths using EBSD tomography, Acta Mater., vol. 57, pp. 559-569. doi:10.1016/j.actamat.2008.09.039

Demir, E., 2008. Taylor-based model for micro-machining of single crystal fcc materials including frictional effects: Application to micro-milling process, Int. J. of Mach. Tool. and Manuf., vol. 48, pp. 1592-1598. doi:10.1016/j.msea.2010.01.004

Demir, E., 2009. A Taylor-based plasticity model for orthogonal machining of single-crystal FCC materials including frictional effects, Int. J. Adv. Manuf. Technol., vol. 40, pp. 847-856. DOI 10.1007/s00170-008-1409-5

Demir, E., 2009. A method to include plastic anisotropy to orthogonal micromachining of fcc single crystals, Int. J. Adv. Manuf. Technol., vol. 43, pp. 474-481. DOI 10.1007/s00170-008-1738-4