Inelastic peridynamic model for molecular crystal particles
Journal Article
·
· Computational Particle Mechanics
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
The peridynamic theory of solid mechanics is applied to modeling the deformation and fracture of micrometer-sized particles made of organic crystalline material. A new peridynamic material model is proposed to reproduce the elastic–plastic response, creep, and fracture that are observed in experiments. The model is implemented in a three-dimensional, meshless Lagrangian simulation code. In the small deformation, elastic regime, the model agrees well with classical Hertzian contact analysis for a sphere compressed between rigid plates. Under higher load, material and geometrical nonlinearity is predicted, leading to fracture. Finally, the material parameters for the energetic material CL-20 are evaluated from nanoindentation test data on the cyclic compression and failure of micrometer-sized grains.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC04-94AL85000; NA0003525
- OSTI ID:
- 1769891
- Report Number(s):
- SAND--2019-14128J; 681627
- Journal Information:
- Computational Particle Mechanics, Journal Name: Computational Particle Mechanics Vol. 8; ISSN 2196-4378
- Publisher:
- Springer NatureCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Modeling shockwaves and impact phenomena with Eulerian peridynamics
A Nonlocal Peridynamic Plasticity Model for the Dynamic Flow and Fracture of Concrete.
Deformation and Fracture in Complex-Shaped Energetic Particles
Journal Article
·
Mon May 08 20:00:00 EDT 2017
· International Journal of Impact Engineering
·
OSTI ID:1360930
A Nonlocal Peridynamic Plasticity Model for the Dynamic Flow and Fracture of Concrete.
Technical Report
·
Wed Oct 01 00:00:00 EDT 2014
·
OSTI ID:1159446
Deformation and Fracture in Complex-Shaped Energetic Particles
Technical Report
·
Sat Sep 01 00:00:00 EDT 2018
·
OSTI ID:1760398