Abstract
Language | English |
---|---|
Pages | 356-359 |
Number of pages | 4 |
Journal | Materials Letters |
Volume | 65 |
DOIs | |
Publication status | Published - 2011 |
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Keywords
- acoustic softening
- ultrasonic assisted deformation
- welding
- ultrasonic softening
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Acoustic softening in metals during ultrasonic assisted deformation via CP-FEM. / Amir, Muhammad; El Sayed, Tamer.
In: Materials Letters, Vol. 65, 2011, p. 356-359.Research output: Contribution to journal › Article
TY - JOUR
T1 - Acoustic softening in metals during ultrasonic assisted deformation via CP-FEM
AU - Amir, Muhammad
AU - El Sayed, Tamer
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
KW - acoustic softening
KW - ultrasonic assisted deformation
KW - welding
KW - ultrasonic softening
U2 - 10.1016/j.matlet.2010.10.031
DO - 10.1016/j.matlet.2010.10.031
M3 - Article
VL - 65
SP - 356
EP - 359
JO - Materials Letters
T2 - Materials Letters
JF - Materials Letters
SN - 0167-577X
ER -