Symposium E-7: Advances in Modeling and Simulation of Material Damage and Failure under Dynamic Conditions

(Mechanics in Materials Science)

Symposium Organizers:

C. A. Bronkhorst, Los Alamos National Laboratory
cabronk@lanl.gov

H. M. Mourad, Los Alamos National Laboratory
hmourad@lanl.gov

D. J. Luscher, Los Alamos National Laboratory
djl@lanl.gov

Symposium Technical Description

Engineered materials and structures are often subjected to severe loading in diverse applications in the transportation, energy, defense, and other important sectors. Consequently, there is a strong need for analytical and computational tools which are capable of predicting the behavior of materials/structures under such extreme operating (or accident) conditions. Developing viable modeling and simulation strategies which possess the required predictive capability is a non-trivial endeavor. Property degradation, and ultimately failure, occur as a result of the interaction between different physical processes (e.g. void nucleation, growth and coalescence, strain localization, crack initiation, growth and percolation) taking place at different length and time scales.

Thus, a successful approach must include two necessary ingredients: (1) physically-based models built upon a good understanding of the underlying physical processes, and their dependence on kinetic (loading rate), spatial (microstructural features/defects), as well as on stochastic (defect distribution) effects, and (2) computational methods capable of representing/resolving the relevant spatial and temporal scales properly, to obtain solutions that are free from spurious artifacts. This symposium welcomes presentations focusing on such models and methods, and their algorithmic implementation.

 Technical Program

Monday | M1 10:00am-11:40am

E7-1: Advances in Modeling and Simulation of Material Damage and Failure under Dynamic Conditions
Room 1308 Session Chair: C. A. Bronkhorst, H. M. Mourad, D. J. Luscher  

Track E: Mechanics in Materials Science

10:00 am Analysis of tool wear mechanism in high-speed milling of carbon fiber reinforced polymer

Youxi Lin, Hua Lin

10:20 am Fragmentation prediction for a brittle ceramic: a two-scale model approach

Remi Dingrevile, John Bignell, Pierre-Alexandre Juan

10:40 am Direct measurement and modeling of glass under shock loading

Panagiotis Philippos, Raul Radovitzky

11:00 am Interface mechanical strength and interface elastic constants calculations in polymer composites, and natural materials

Devendra Verma, Vikas Tomar

11:20 am The roles of glide set and shuffle set dislocations in the anisotropic fracture behavior of silicon

Khalil Elkhodary

 

Monday | M2 13:00pm-14:40pm

E7-2: Advances in Modeling and Simulation of Material Damage and Failure under Dynamic Conditions
Room 1308 Session Chair: C. A. Bronkhorst, H. M. Mourad, D. J. Luscher  

Track E: Mechanics in Materials Science

13:00 pm Distribution enhanced homogenization of coupled damage and crystal plasticity

Coleman Alleman

13:20 pm Co-designed simulations and experiments of projectile impact test with uncertainty quantification

Alberto Salvadori, Sangmin Lee, Waad Subber, Karel Matous, Joshua Pauls, Alexander Mukasyan, Ibrahim Emre Gunduz, Steven F. Son

13:40 pm Fracture model for beryllium and other materials

Abigail Hunter

14:00 pm On the micromechanics of dynamic ductile failure

Justin W. Wilkerson

14:20 pm Meso to macro mechanics of metallic ductile damage under dynamic loading conditions

Curt Bronkhorst

 Monday | M3 15:00pm-16:40pm

E7-3: Advances in Modeling and Simulation of Material Damage and Failure under Dynamic Conditions
Room 1308 Session Chair: C. A. Bronkhorst, H. M. Mourad, D. J. Luscher  

Track E: Mechanics in Materials Science

15:00 pm Subcycling-accelerated crystal plasticity FE model for discrete twin wvolution in magnesium alloys

Somnath Ghosh, Jiahao Cheng

15:20 pm Numerical implementation of a crystal plasticity model with dislocation transport for high strain rate applications

Hashem M. Mourad, Jason R. Mayeur, Darby J. Luscher, Abigail Hunter, Mark A. Kenamond

15:40 pm Ignition sensitivity of HMX accounting for grain-scale hot spot mechanisms and chemical reaction

Christopher Miller

16:00 pm A discrete dislocation dynamics study on the temperature effects on the plastic flow in magnesium single crystals under c-axis compression loading

Kinshuk Srivastava, Jaafar El-Awady

16:20 pm Anisotropy of solute effect on dislocation slips in an HCP metal: an atomistic simulation study of Mg alloys

Michael L. Falk, Peng Yi