PSI - Issue 26

Panagiotis N. Lymperopoulos, Efstathios E. Theotokoglou/ StructuralIntegrity Procedia 00 (2019) 000 – 000

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Panagiotis N. Lymperopoulos et al. / Procedia Structural Integrity 26 (2020) 263–268

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Fig. 9 Force at y-axis (Logarithmic plot)

5. Conclusions

According to our research, it can be concluded that there is optimum dimension in order to have similar behavior with isolators. The large displacement consideration appears to reduce the shear strength for polymer material and increase the shear strength of steel. Moreover, for the steel material, using the large displacements analysis, the pentamode failure is earlier than the pentamode failure using small displacement analysis. The proposed in this paper study constitutes the first step in order to confront numerically the pentamodes for antiseismic design. Some more analyses related with experimental results are needed, in order to predict more reliably the behavior of pentamodes. Filippo Capolino,Theory and Phenomena of Metamaterials, Metamaterials Handbook; CRC Press; 2009. Chronopoulos D., Antoniadis I., Collet M., Ichchou M.; Enhancement of wave damping within metamaterials having embedded negative stifness inclusions; Wave Motion; 2015; 58; 165-179. Sapountzakis J. E., Syrimi G. P., Pantazis A. I., Antoniadis A. I.; KDamper concept in seismic isolation of bridges with flexible piers. Engineering Structures; 2015; 153; 525-539. Shearer P. M.; Introduction to Seismology; Second Edition; Cambridge University Press; 2009. Fabbrocino F., Amendola A., Benzoni G., Fraternali F.; Seismic Application OfPentamode Lattices; International Journal of Earthquake Engineering; 2015; Anno XXXIII; Num 1-2; 62-71. Andrew N. Norris. Mechanics of elastic networks. Proceedings of the Royal Society of London A; 2014. KadicM ,Bueckmann T , Stenger N , Thiel M , Wegener M ., On the practicability of pentamode mechanical metamaterials. Applied physics letters; 2012; 100; (191901-1)-(191901-4). Amendola A., Benzoni G., Fraternali F.; Non-linear elastic response of layered structures, alternating pentamode lattices and confinement plates; Composites Part B; 2017; 115; 117-123 Amendola A., Carpentieri G., Feo L., Fraternali F.; Bending dominated response of layered mechanical metamaterials alternating pentamode lattices and confinement plates; Composite structures; 2016; 157; 71-77. ANSYS. ANSYS APDL; Available from: https://www.ansys.com/academic/free-student-products; 2019. References