An asymptotically compatible meshfree quadrature rule for nonlocal problems with applications to peridynamics
Journal Article
·
· Computer Methods in Applied Mechanics and Engineering
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Center for Computing Research
- Lehigh Univ., Bethlehem, PA (United States). Dept. of Mathematics
In this paper, we present a meshfree quadrature rule for compactly supported nonlocal integro-differential equations (IDEs) with radial kernels. We apply this rule to develop a meshfree discretization of a peridynamic solid mechanics model that requires no background mesh. Existing discretizations of peridynamic models have been shown to exhibit a lack of asymptotic compatibility to the corresponding linearly elastic local solution. By posing the quadrature rule as an equality constrained least squares problem, we obtain asymptotically compatible convergence by introducing polynomial reproduction constraints. Our approach naturally handles traction-free conditions, surface effects, and damage modeling for both static and dynamic problems. We demonstrate high-order convergence to the local theory by comparing to manufactured solutions and to cases with crack singularities for which an analytic solution is available. We verify the applicability of the approach to realistic problems by reproducing high-velocity impact results from the Kalthoff–Winkler experiments.
- Research Organization:
- Lehigh Univ., Bethlehem, PA (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- National Science Foundation (NSF) (United States); SNL Laboratory Directed Research and Development (LDRD) Program; USDOE; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR) (SC-21)
- Grant/Contract Number:
- NA0003525; SC0009247
- OSTI ID:
- 1474082
- Alternate ID(s):
- OSTI ID: 1636024
- Report Number(s):
- SAND--2018-10211J; 667966
- Journal Information:
- Computer Methods in Applied Mechanics and Engineering, Journal Name: Computer Methods in Applied Mechanics and Engineering Vol. 343; ISSN 0045-7825
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
| Asymptotically compatible meshfree discretization of state-based peridynamics for linearly elastic composite materials | preprint | January 2019 |
Peridynamic Modeling of Frictional Contact
|
journal | April 2019 |
Similar Records
An asymptotically compatible treatment of traction loading in linearly elastic peridynamic fracture
On the prescription of boundary conditions for nonlocal Poisson's and peridynamics models
Asymptotically Compatible Reproducing Kernel Collocation and Meshfree Integration for Nonlocal Diffusion
Journal Article
·
Mon Feb 01 19:00:00 EST 2021
· Computer Methods in Applied Mechanics and Engineering
·
OSTI ID:1769919
On the prescription of boundary conditions for nonlocal Poisson's and peridynamics models
Technical Report
·
Tue Jun 01 00:00:00 EDT 2021
·
OSTI ID:1817978
Asymptotically Compatible Reproducing Kernel Collocation and Meshfree Integration for Nonlocal Diffusion
Journal Article
·
Wed Jan 06 19:00:00 EST 2021
· SIAM Journal on Numerical Analysis
·
OSTI ID:1738919