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Advanced Modeling and Simulation in Engineering Sciences
Fig. 3 | Advanced Modeling and Simulation in Engineering Sciences

Fig. 3

From: Asymptotically consistent and computationally efficient modeling of short-ranged molecular interactions between curved slender fibers undergoing large 3D deformations

Fig. 3

Illustration of the section–beam interaction potential (SBIP) approach. The actual, deformed volume of the second interaction partner (“master”) is approximated by a surrogate body (blue) located at the closest point \(\xi _{2\text {c}}\) to a given integration point \(\xi _{1\text {,GP}}\) of the first interaction partner (“slave”). Distance vector \({\varvec{r}}_{1-2\text {c}}\) and relative rotation vector \({\varvec{\psi }}_{1-2\text {c}}\) uniquely describe the mutual separation and orientation

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