In this work we tailor the response of trusses loaded beyond their yield limit. The truss structures are modeled using finite strain theory and rate-independent elasto-plasticity. We design trusses with a tailored mechanical response that is between “elastic” and “elastic-ideal-plastic” subject to the volume constraint. The design updates are generated by the gradient-based Method of Moving Asymptotes (MMA) solver and the sensitivities of the response functions are computed using a path-dependent adjoint sensitivity analysis. The computations are performed in Matlab.
@article{osti_2563625,
author = {Wallin, Mathias and Watts, Seth and Sigmund, Ole and Tortorelli, Daniel},
title = {Response tailoring of elasto-plastic trusses},
annote = {In this work we tailor the response of trusses loaded beyond their yield limit. The truss structures are modeled using finite strain theory and rate-independent elasto-plasticity. We design trusses with a tailored mechanical response that is between “elastic” and “elastic-ideal-plastic” subject to the volume constraint. The design updates are generated by the gradient-based Method of Moving Asymptotes (MMA) solver and the sensitivities of the response functions are computed using a path-dependent adjoint sensitivity analysis. The computations are performed in Matlab.},
doi = {10.1007/s00158-025-03993-1},
url = {https://www.osti.gov/biblio/2563625},
journal = {Structural and Multidisciplinary Optimization},
issn = {ISSN 1615-1488},
number = {4},
volume = {68},
place = {United States},
publisher = {Springer},
year = {2025},
month = {04}}