[learn_more caption=”Antonios Zavaliangos”] PhD’92 MIT (Mech Eng); MS’87 Columbia (Eng. Mechanics); Diploma’86 Mech. Eng. NTUA Greece. Faculty of Dept of Mat. Sci. & Eng Drexel University since 1992, currently A W. Grosvenor Professor of Materials Science and Engineering Director of Microtomography Facility at Drexel University Funded over the years by NSF, ARL, Dept of Ed, Abbvie, Merck, J&J, Bristol Myers Squibb, Alcoa. NSF CAREER 96; Best Paper Award ABA’ 03; Edit. Boards: Int. J. Powder Met. and Powder Metallurgy. Extensive consulting experience with Pharmaceutical and Powder Technology Industries. [/learn_more]

The Drucker Prager Cap model is the most popular continuum model for powder compaction today due to the simplicity of the calibration process.  In this presentation we will review success stories from this model on the prediction of the density, temperature distribution and insight in capping and lamination and we will review the key difficulties in further development (non-linear elastic unloading, extrapolation of parameters to low and high densities, in and out  of die properties)