Amir, Muhammad and El Sayed, Tamer (2012) Ultrasonic assisted manufacturing processes : variational model and numerical simulations. Ultrasonics, 52 (4). pp. 521-529. ISSN 0041-624XFull text not available in this repository. (Request a copy from the Strathclyde author)
We present a computational study of ultrasonic assisted manufacturing processes including sheet metal forming, upsetting, and wire drawing. A fully variational porous plasticity model is modified to include ultrasonic softening effects and then utilized to account for instantaneous softening when ultrasonic energy is applied during deformation. Material model parameters are identified via inverse modeling, i.e. by using experimental data. The versatility and predictive ability of the model are demonstrated and the effect of ultrasonic intensity on the manufacturing process at hand is investigated and compared qualitatively with experimental results reported in the literature.
|Keywords:||ultrasonic softening, wire drawing, finite element analysis, porous metal plasticity , constitutive model, Engineering design, Acoustics and Ultrasonics|
|Subjects:||Technology > Engineering (General). Civil engineering (General) > Engineering design|
|Department:||Faculty of Engineering > Design, Manufacture and Engineering Management|
|Depositing user:||Pure Administrator|
|Date Deposited:||03 Feb 2012 11:58|
|Last modified:||05 May 2016 00:15|