R
Richard W. Macek
Researcher at Los Alamos National Laboratory
Publications - 5
Citations - 579
Richard W. Macek is an academic researcher from Los Alamos National Laboratory. The author has contributed to research in topics: Finite element method & Mohr–Coulomb theory. The author has an hindex of 4, co-authored 5 publications receiving 443 citations.
Papers
More filters
Journal ArticleDOI
Peridynamics via finite element analysis
TL;DR: In this paper, the authors describe how the peridynamic model can also be implemented in a conventional finite element analysis (FEA) code using truss elements, and demonstrate the utility and robustness of the method for problems involving fracture, damage and penetration.
Journal ArticleDOI
A mass penalty technique to control the critical time increment in explicit dynamic finite element analyses
Richard W. Macek,Brian H. Aubert +1 more
TL;DR: In this article, a mass penalty technique is proposed to preferentially lower the highest natural frequencies of a dynamic system with only a minimal effect on the structural modes, where the critical time increment is inversely proportional to the highest frequency.
Journal ArticleDOI
Finite cavity expansion method for near-surface effects and layering during Earth penetration
TL;DR: In this article, a finite spherical cavity expansion technique is developed to simulate the loading on projectiles penetrating geologic media, and a general pressure-dependent damaged plasticity model is used with incompressible kinematics to approximate a wide range of targets.
Journal ArticleDOI
Viscoelastic analysis of filament-wound composite material systems
TL;DR: In this paper, a methodology for the viscoelastic analysis of filament-wound polymer matrix composites is developed and demonstrated, using the elastic- visco-elastic correspondence principle with standard micromechanics models.
Finite cavity expansion method for near-surface effects and layering during earth penetration
TL;DR: In this article, a finite spherical cavity expansion technique is developed to simulate the loading on projectiles penetrating geologic media, and Damaged Mohr-Coulomb models and general pressure-dependent damaged plasticity models are used with incompressible kinematics to approximate a wide range of targets.