Archives

  • Home>
  • Articles by alejandro
    • (Page 8)

The Mechanics and Mathematics of Bodies Described by Implicit Constitutive Equations: Specific Applications

  • March 20, 2014
  • Comments off

Plenary Lecture, 14th Pan-American Congress of Applied Mechanics K. R. Rajagopal Distinguished Professor, Regents Professor, Forsyth Chair in Mechanical Engineering, Professor of Mathematics, Professor of Biomedical Engineering, Professor of Civil Engineering, Professor of Chemical Engineering, Senior Research Scientist, Texas Transportation Institute Department of Mechanical Engineering, Room 314, Engineering Physics Building, College Station, TX 77843-3 123, U.S.A.

Read More » Read More

The Mechanics and Mathematics of Bodies Described by Implicit Constitutive Equations: General Considerations

  • March 20, 2014
  • Comments off

Plenary Lecture, 14th Pan-American Congress of Applied Mechanics K. R. Rajagopal Distinguished Professor, Regents Professor, Forsyth Chair in Mechanical Engineering, Professor of Mathematics, Professor of Biomedical Engineering, Professor of Civil Engineering, Professor of Chemical Engineering, Senior Research Scientist, Texas Transportation Institute Department of Mechanical Engineering, Room 314, Engineering Physics Building, College Station, TX 77843-3 123, U.S.A.

Read More » Read More

Polygonal and Polyhedral Finite Element Methods in Computational Mechanics

  • February 27, 2014
  • Comments off

Plenary Lecture, 14th Pan-American Congress of Applied Mechanics N. Sukumar Department of Civil and Environmental Engineering University of California, Davis http://dilbert.engr.ucdavis.edu/~suku Generalized barycentric coordinates (e.g., Wachspress, mean value coordinates, maximum-entropy coordinates, and harmonic coordinates) have been widely adopted for applications in geometry processing and as basis functions in polygonal and polyhedral finite element methods. In recent

Read More » Read More

Dynamics of Cracks with Interacting Faces

  • February 27, 2014
  • Comments off

Professor  Igor A. GUZ  Sixth Century Chair in Solid Mechanics Head of School of Engineering University of Aberdeen Fraser Noble Building, Aberdeen AB24 3UE, Scotland e-mail: i.guz@abdn.ac.uk http://www.abdn.ac.uk/engineering/people/profiles/i.guz The presence of cracks and delaminations considerably decreases the strength and the lifetime of engineering structures as well as significantly increases the cost of exploitation. In particular,

Read More » Read More

A numerical study of elastic bodies that are described by constitutive equations that exhibit limited strains

  • November 25, 2013
  • Comments off

International Journal of Solids and Structures Vol. 51, No. 3-4, pp. 875-885, 2014 A. Ortiz-Bernardin, R. Bustamante, K.R. Rajagopal Abstract Recently, a very general and novel class of implicit bodies has been developed to describe the elastic response of solids. It contains as a special subclass the classical Cauchy and Green elastic bodies. Within the

Read More » Read More

Maximum-entropy meshfree method for compressible and near-incompressible elasticity

  • November 25, 2013
  • Comments off

Computer Methods in Applied Mechanics and Engineering Vol. 119, No. 25-28, pp. 1859-1871, 2010 A. Ortiz , M.A. Puso, N. Sukumar Abstract Numerical integration errors and volumetric locking in the near-incompressible limit are two outstanding issues in Galerkin-based meshfree computations. In this paper, we present a modified Gaussian integration scheme on background cells for meshfree

Read More » Read More

Maximum-entropy meshfree method for incompressible media problems

  • November 25, 2013
  • Comments off

Finite Elements in Analysis and Design Vol. 47, No. 6, pp. 572-585, 2011 A. Ortiz , M.A. Puso, N. Sukumar Abstract A novel maximum-entropy meshfree method that we recently introduced in Ortiz et al. (2010) [1] is extended to Stokes flow in two dimensions and to three-dimensional incompressible linear elasticity. The numerical procedure is aimed

Read More » Read More

Paper Accepted: A Numerical Study of Elastic Bodies That Are Described by Constitutive Equations That Exhibit Limited Strains

  • November 15, 2013
  • Comments off

Paper Accepted for Publication in the International Journal of Solids and Structures A. Ortiz-Bernardin, R. Bustamante and K. R. Rajagopal, “A numerical study of elastic bodies that are described by constitutive equations that exhibit limited strains.” ABSTRACT Recently, a very general and novel class of implicit bodies has been developed to describe the elastic response

Read More » Read More

Make and Break Symmetry: New Semiconductor Devices Exploiting the Latest Developments in Condensed Matter Physics

  • October 22, 2013
  • Comments off

Debdeep Jena Department of Electrical Engineering University of Notre Dame Semiconductor devices are undergoing a quiet revolution, many years in the making. Extreme bandgap materials such as AlN, BN, and GaN add rich new physics such as Berry-phase induced electronic polarization, new methods of doping and conductivity control, modification of electron-phonon interactions by neutrons in isotopes

Read More » Read More