A thermomechanical crystal plasticity constitutive model for ultrasonic consolidation
KAUST DepartmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Physical Science and Engineering (PSE) Division
Permanent link to this recordhttp://hdl.handle.net/10754/594290
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AbstractWe present a micromechanics-based thermomechanical constitutive model to simulate the ultrasonic consolidation process. Model parameters are calibrated using an inverse modeling approach. A comparison of the simulated response and experimental results for uniaxial tests validate and verify the appropriateness of the proposed model. Moreover, simulation results of polycrystalline aluminum using the identified crystal plasticity based material parameters are compared qualitatively with the electron back scattering diffraction (EBSD) results reported in the literature. The validated constitutive model is then used to simulate the ultrasonic consolidation process at sub-micron scale where an effort is exerted to quantify the underlying micromechanisms involved during the ultrasonic consolidation process. © 2011 Elsevier B.V. All rights reserved.
CitationSiddiq A, Sayed TE (2012) A thermomechanical crystal plasticity constitutive model for ultrasonic consolidation. Computational Materials Science 51: 241–251. Available: http://dx.doi.org/10.1016/j.commatsci.2011.07.023.
SponsorsThis work was fully funded by the KAUST baseline fund.
JournalComputational Materials Science