Hysteresis is discussed as a multi-scale material feature that can strongly affect the dynamic performance of a structure. It is shown that the hysteresis exhibited by assemblies of short wire ropes can be tailored via a synergistic use of different dissipation mechanisms (inter-wire frictional sliding, phase transformations) combined with geometric nonlinearities. The blend of material and geometric nonlinearities is a powerful and promising way to design new advantageous types of hysteretic responses in macro- or micro-scale devices and structures. Indeed, moving from macro-scale structures towards much smaller material scales, carbon nanotubes in nanocomposites are shown to dissipate energy through stick-slip with the polymer chains. The hysteresis of these materials can be largely modified and optimized by adjusting the micro-structural constitutive features. Recent experimental and modeling efforts are discussed in the context of new directions in material design and dynamic behavior of nanocomposites.
Lacarbonara, W., Talò, M., Carboni, B., & Lanzara, G. (2017). Tailoring of hysteresis across different material scales. In Springer Proceedings in Physics (pp. 227-250). Springer Science and Business Media, LLC.
|Titolo:||Tailoring of hysteresis across different material scales|
|Data di pubblicazione:||2017|
|Citazione:||Lacarbonara, W., Talò, M., Carboni, B., & Lanzara, G. (2017). Tailoring of hysteresis across different material scales. In Springer Proceedings in Physics (pp. 227-250). Springer Science and Business Media, LLC.|
|Appare nelle tipologie:||2.1 Contributo in volume (Capitolo o Saggio)|