Exploring induced heterogeneity in elastic discrete mechanical models

J. E. Bolander, J. Eliáš, J. Raisinger, Q. Zhang (2025). "Exploring induced heterogeneity in elastic discrete mechanical models." In Proceedings of FraMCoS 12, Vienna, Austria.

J. E. Bolander, J. Eliáš, J. Raisinger, Q. Zhang. "Exploring induced heterogeneity in elastic discrete mechanical models." Paper presented at FraMCoS 12, Vienna, Austria, 2025.

J. E. Bolander, J. Eliáš, J. Raisinger, Q. Zhang, "Exploring induced heterogeneity in elastic discrete mechanical models," in Proc. FraMCoS 12, Vienna, Austria, 2025.

@inproceedings{j-e-bolander2025,
  title     = {Exploring induced heterogeneity in elastic discrete mechanical models},
  author    = {J. E. Bolander, J. Eliáš, J. Raisinger, Q. Zhang},
  year      = {2025},
  booktitle = {Proceedings of FraMCoS 12},
  address   = {Vienna, Austria},
}

TY  - CPAPER
TI  - Exploring induced heterogeneity in elastic discrete mechanical models
AU  - J. E. Bolander
AU  - J. Eliáš
AU  - J. Raisinger
AU  - Q. Zhang
PY  - 2025
T2  - Proceedings of FraMCoS 12
CY  - Vienna, Austria
UR  - https://framcos.org/wp-content/uploads/framcos-papers/Exploring_induced_heterogeneity_in_elastic_discrete_mechanical_models.pdf
AB  - Mesoscale discrete lattice models offer a direct way to incorporate the heterogeneous mi- crostructure of concrete and other geomaterials efficiently, using vector-based constitutive laws with homogeneous material parameters. These models exhibit stress oscillations, which, if deemed non- physical, can be suppressed using methods such as auxiliary stress projection or deviatoric-volumetric decomposition to produce homogeneous elastic stress fields. This study examines the elastic behav- ior of the homogenized models with controlled heterogeneity introduced via spatial randomization of material parameters, with an emphasis on the replication of the oscillations in the non-homogenized discrete model. Simulations with varying degrees of spatial correlation under…
ER  -