Acoustic softening in metals during ultrasonic assisted deformation via CP-FEM
Type
ArticleKAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionLearning Support
Physical Science and Engineering (PSE) Division
Date
2011-01Permanent link to this record
http://hdl.handle.net/10754/594143
Metadata
Show full item recordAbstract
In this paper, a phenomenological crystal plasticity model is modified to account for acoustic (ultrasonic) softening effects based on the level of ultrasonic intensity supplied to single and polycrystalline metals. The material parameters are identified using the inverse modeling approach by interfacing the crystal plasticity model with an optimization tool. The proposed model is validated and verified by comparing the microstructure evolution with experimental EBSD results reported in the literature. The model is able to capture the ultrasonic softening effect and the results show that as the ultrasonic intensity increases, the plastic deformation also increases. Differences in the stress-strain response are explained based on the slip system orientation tensor (Schmidt factors) which depends upon the crystal orientation. © 2010 Elsevier B.V. All rights reserved.Citation
Siddiq A, El Sayed T (2011) Acoustic softening in metals during ultrasonic assisted deformation via CP-FEM. Materials Letters 65: 356–359. Available: http://dx.doi.org/10.1016/j.matlet.2010.10.031.Sponsors
This work was fully funded by the KAUST baseline fund.Publisher
Elsevier BVJournal
Materials Lettersae974a485f413a2113503eed53cd6c53
10.1016/j.matlet.2010.10.031