K&C’s innovative Meshfree Computation Solid Dynamics (CSD) solver.
K&C’s innovative Meshfree Computation Solid Dynamics (CSD) solver.
FEMFRE is developed towards a vision for a truly predictive, large-deformation, solid mechanics solver for simulating materials and structures in extreme environments. Originally designed as a hybrid Finite Element and Meshfree solver, K&C has since focused FEMFRE development towards an advanced, Meshfree, thermo-mechanical solid dynamics solver.
By implementing and maturing Meshfree methods [1-3], including particle and cell-based nodal integration methods, we intend for FEMFRE to solve problems that most finite element mesh-based solvers remain challenged by. These include problems involving:
FEMFRE can now be used as a tool and research platform for those in the modeling and simulation community interested in supporting the vision for this powerful solver. FEMFRE is powered by K&C’s Extreme Materials Library (ExML), which includes a host of common solid materials characterized in our Dynamic Material Characterization laboratory. FEMFRE is therefore applicable to many blast, shock, impact, and intense fluid-structure interaction problems [4].
K&C’s current efforts for FEMFRE development are in refining, extending, and validating to solver towards the vision for the prediction capability.
[1] Y. Wu, J. Magallanes, H. Choi and J. Crawford, “Evolutionary Coupled Finite Element Meshfree Formulation for Modeling Concrete Behaviors under Blast and Impact Loadings,” J. Eng. Mech., vol. 139, pp. 525-536, 2013.
[2] Y. Wu, J. Magallanes and J. E. Crawford, “Fragmentation and debris evolution modeled by a point-wise coupled reproducing kernel/finite element formulation,” Int. J. of Dam. Mech., pp. 1005-1034, 2014.
[3] J. Chen, M. Hillman and S. Chi, “Meshfree Methods: Progress Made after 20 Years,” J. Eng. Mech., vol. 143, no. 4, 2017.
[4] J. Magallanes, D. Wilmes, C. Meakin, Y. Wu and J. Crawford, “KC-FEMFRE: K&C’s Finite Element and Meshfree Code for Computational Solid Dynamics,” Karagozian & Case, Inc., TR-19-01.1, Glendale, CA, 2019 (Proprietary)