| Full text | |
| Author(s): |
Total Authors: 3
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| Affiliation: | [1] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Struct Engn, Sao Paulo - Brazil
[2] Univ Parma, Dept Engn & Architecture, Parma - Italy
[3] Natl Res Council Italy ITC CNR, Construct Technol Inst, San Giuliano Milanese - Italy
Total Affiliations: 3
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| Document type: | Journal article |
| Source: | INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES; v. 138, p. 1-12, MAY 1 2018. |
| Web of Science Citations: | 1 |
| Abstract | |
We discuss the static states of a peridynamic nonlinear elastic bar of finite length in a hard device, which represents a continuum description of a complex hierarchical structure with interacting long-range crosslinkers, of the type encountered in biological systems. The nonlocal character of the model requires that edge conditions are defined on a boundary layer with the same length of the horizon, affecting the solution in the bulk interior. Assuming that the constituent microscopic ligaments contain bistable units governed by a non-convex potential, we show that the development of coexisting folded-unfolded phases, either synchronized or unsynchronized, induces in the displacement field the formation of undulations at a micro-scale of the length of the horizon, associated with strain localizations triggered at the bar ends. The equilibrium paths, found numerically with a pseudo-arc-length continuation method, become unstable within a certain range of elongation, suggesting the possible occurrence of a negative-stiffness response. (C) 2017 Elsevier Ltd. All rights reserved. (AU) | |
| FAPESP's process: | 16/12217-2 - Peridynamic theory in the modelling of the Post-Breakage phase of structural glass |
| Grantee: | Adair Roberto Aguiar |
| Support Opportunities: | Research Grants - Visiting Researcher Grant - International |