Abstract
Metamaterials are artificial microstructured media that exhibit unique effective material properties and can be tailored to achieve negative properties that inhibit the propagation of acoustic or elastic waves. However, the effectiveness of linear metamaterials (LMs) based on resonance mechanisms is limited to a narrow frequency band. To overcome this limitation, nonlinear metamaterials (NLMs) have been investigated for enlarged bandwidth and wave phenomena beyond the linear systems. This paper presents a new mechanism for achieving an ultra-broad bandgap using a chain of triplets of resonators, based on the combination of hardening-plus-softening nonlinearity. The paper begins by investigating the bandgap and transmission characteristics of NLMs with different arrangements of single-hardening or single-softening nonlinear spring element. Explicit expressions for the nonlinear dispersion relations have been derived through a perturbation method. The paper then explores the combination of hardening-plus-softening nonlinearity to achieve an ultra-broad bandgap, which is more than twice as wide as the bandgap in the corresponding LM. The transmission characteristics are investigated analytically and validated numerically, providing evidence for the existence and accuracy of the predicted ultra-broad bandgap. The paper also examines nonlinear phenomena such as the dual wavevector and inflection point of transmissions in detail. Finally, the physical origin of the ultra-broad bandgap is elaborated through the nonlinear frequency response of a unit cell solved using a high-order harmonic balance method. The findings of this study are expected to provide a new strategy for broadening vibration suppression and offer new insight into the behavior of nonlinear periodic structures.
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11071-023-08808-w/MediaObjects/11071_2023_8808_Fig1_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11071-023-08808-w/MediaObjects/11071_2023_8808_Fig2_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11071-023-08808-w/MediaObjects/11071_2023_8808_Fig3_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11071-023-08808-w/MediaObjects/11071_2023_8808_Fig4_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11071-023-08808-w/MediaObjects/11071_2023_8808_Fig5_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11071-023-08808-w/MediaObjects/11071_2023_8808_Fig6_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11071-023-08808-w/MediaObjects/11071_2023_8808_Fig7_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11071-023-08808-w/MediaObjects/11071_2023_8808_Fig8_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11071-023-08808-w/MediaObjects/11071_2023_8808_Fig9_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11071-023-08808-w/MediaObjects/11071_2023_8808_Fig10_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1007%2Fs11071-023-08808-w/MediaObjects/11071_2023_8808_Fig11_HTML.png)
Similar content being viewed by others
Data availability
Relevant data can be made available upon reasonable request.
Abbreviations
- \({A}_{1}^{0}\) :
-
Amplitude of incident wave
- \({A}_{b}\) :
-
Excitation amplitude applied at the first unit cell in numerical analysis
- \(a\) :
-
Lattice constant
- \({c}_{1}\) :
-
Secular terms
- c.c :
-
Complex conjugate
- \(i\) :
-
Imaginary unit \(\sqrt{-1}\)
- \({k}_{1}\), \({k}_{2}\),\({k}_{3}\) :
-
Linear spring coefficient of unit cells from the external to the internal
- LM:
-
Linear metamaterial
- \({m}_{1}\), \({m}_{2}\),\({m}_{3}\) :
-
Discrete mass of unit cells from the external to the internal
- n :
-
Location number of unit cell
- NLM:
-
Nonlinear metamaterial
- \(q\) :
-
The wave number
- \({T}_{l}\) :
-
Transmission for linear system
- \({T}_{nl}\) :
-
Transmission for nonlinear system
- \({u}_{1}^{n}\), \({u}_{2}^{n}\),\({u}_{3}^{n}\) :
-
Displacement of \({m}_{1}\),\({m}_{2}\), \({m}_{3}\) For the nth unit cells
- \({{u}_{j}^{n}}^{\left(0\right)}\) :
-
The zero-order term of the perturbation expansion of the displacement
- \({{u}_{j}^{n}}^{\left(1\right)}\) :
-
The first-order term of the perturbation expansion of the displacement
- \({x}_{i}\) :
-
The deformation of the corresponding spring
- \({\gamma }_{2}\),\({\gamma }_{3}\) :
-
Non-dimensional nonlinear stiffness
- \({\delta }_{2}\),\({\delta }_{3}\) :
-
Non-dimensional stiffness
- \(\varepsilon \) :
-
Perturbation parameter
- \({\theta }_{2}\),\({\theta }_{3}\) :
-
Non-dimensional mass
- \(\kappa \) :
-
Dimensionless wave number
- \(\lambda \) :
-
Coefficient of
- \(\tau \) :
-
Non-dimensional time
- \({\omega }_{0}\) :
-
Natural frequency
- \({\Gamma }_{2}\),\({\Gamma }_{3}\) :
-
Nonlinear spring coefficients
- \(\Omega \) :
-
Non-dimensional frequency
- \({\Omega }_{0}\) :
-
Zero-order term of the perturbation expansion of the non-dimensional frequency
- \({\Omega }_{1}\) :
-
First-order term of the perturbation expansion of the non-dimensional frequency
- \({\Omega }_{L}^{1}\) :
-
Lower edge frequency of the first bandgap
- \({\Omega }_{U}^{1}\) :
-
Upper edge frequency of the first bandgap
- \({\Omega }_{L}^{2}\) :
-
Lower edge frequency of second bandgap
- \({\Omega }_{U}^{2}\) :
-
Upper edge frequency of second bandgap
- \({\Omega }_{c}\) :
-
Cut-off frequency
References
Liu, Z., Zhang, X., Mao, Y., Zhu, Y.Y., Yang, Z., Chan, C.T., Sheng, P.: Locally resonant sonic materials. Science 289, 1734–1736 (2000). https://doi.org/10.1126/science.289.5485.1734
Liu, Z., Chan, C.T., Sheng, P.: Analytic model of phononic crystals with local resonances. Phys. Rev. B–Condens. Matter Mater. Phys. 71, 1–8 (2005). https://doi.org/10.1103/PhysRevB.71.014103
Liu, X.N., Hu, G.K., Huang, G.L., Sun, C.T.: An elastic metamaterial with simultaneously negative mass density and bulk modulus. Appl. Phys. Lett. 98, 2–4 (2011). https://doi.org/10.1063/1.3597651
Zhu, R., Liu, X.N., Hu, G.K., Sun, C.T., Huang, G.L.: Negative refraction of elastic waves at the deep-subwavelength scale in a single-phase metamaterial. Nat. Commun. 5, 1–8 (2014). https://doi.org/10.1038/ncomms6510
Scheibner, C., Souslov, A., Banerjee, D., Surówka, P., Irvine, W.T.M., Vitelli, V.: Odd elasticity. Nat. Phys. 16, 475–480 (2020). https://doi.org/10.1038/s41567-020-0795-y
Chen, Y., Li, X., Scheibner, C., Vitelli, V., Huang, G.: Realization of active metamaterials with odd micropolar elasticity. Nat. Commun. 12, 1–12 (2021). https://doi.org/10.1038/s41467-021-26034-z
Zhu, R., Liu, X.N., Hu, G.K., Sun, C.T., Huang, G.L.: A chiral elastic metamaterial beam for broadband vibration suppression. J. Sound Vib. 333, 2759–2773 (2014). https://doi.org/10.1016/j.jsv.2014.01.009
Matlack, K.H., Bauhofer, A., Krödel, S., Palermo, A., Daraio, C.: Composite 3D-printed metastructures for lowfrequency and broadband vibration absorption. Proc. Natl. Acad. Sci. USA 113, 8386–8390 (2016). https://doi.org/10.1073/pnas.1600171113
Cai, C., Zhou, J., Wu, L., Wang, K., Xu, D., Ouyang, H.: Design and numerical validation of quasi-zero-stiffness metamaterials for very low-frequency band gaps. Compos. Struct. 236, 111862 (2020). https://doi.org/10.1016/j.compstruct.2020.111862
Zhang, M., Yang, J., Zhu, R.: Origami-based bistable metastructures for low-frequency vibration control. J. Appl. Mech., Transact. ASME 88, 051009 (2021). https://doi.org/10.1115/1.4049953
Park, C.S., Shin, Y.C., Jo, S.H., Yoon, H., Choi, W., Youn, B.D., Kim, M.: Two-dimensional octagonal phononic crystals for highly dense piezoelectric energy harvesting. Nano Energy 57, 327–337 (2019). https://doi.org/10.1016/j.nanoen.2018.12.026
Lu, Z.Q., Zhao, L., Ding, H., Chen, L.Q.: A dual-functional metamaterial for integrated vibration isolation and energy harvesting. J. Sound Vib. 509, 11625 (2021). https://doi.org/10.1016/j.jsv.2021.116251
Lee, G., Lee, D., Park, J., Jang, Y., Kim, M., Rho, J.: Piezoelectric energy harvesting using mechanical metamaterials and phononic crystals. Commun. Phys. 5, 1–16 (2022). https://doi.org/10.1038/s42005-022-00869-4
Tan, K.T., Huang, H.H., Sun, C.T.: Blast-wave impact mitigation using negative effective mass density concept of elastic metamaterials. Int. J. Impact Eng 64, 20–29 (2014). https://doi.org/10.1016/j.ijimpeng.2013.09.003
Hu, J., Yu, T.X., Yin, S., Xu, J.: Low-speed impact mitigation of recoverable DNA-inspired double helical metamaterials. Int. J. Mech. Sci. 161, 105050 (2019). https://doi.org/10.1016/j.ijmecsci.2019.105050
Oudich, M., Assouar, M.B., Hou, Z.: Propagation of acoustic waves and waveguiding in a two-dimensional locally resonant phononic crystal plate. Appl. Phys. Lett. 97, 65–68 (2010). https://doi.org/10.1063/1.3513218
Li, G.H., Wang, Y.Z., Wang, Y.S.: Active control on switchable waveguide of elastic wave metamaterials with the 3D printing technology. Sci. Rep. 9, 1–8 (2019). https://doi.org/10.1038/s41598-019-52705-5
Tan, K.T., Huang, H.H., Sun, C.T.: Optimizing the band gap of effective mass negativity in acoustic metamaterials. Appl. Phys. Lett. 101, 241902 (2012). https://doi.org/10.1063/1.4770370
Hu, G., Tang, L., Das, R., Gao, S., Liu, H.: Acoustic metamaterials with coupled local resonators for broadband vibration suppression. AIP Adv. 7, 025211 (2017). https://doi.org/10.1063/1.4977559
Abdeljaber, O., Avci, O., Inman, D.J.: Optimization of chiral lattice based metastructures for broadband vibration suppression using genetic algorithms. J. Sound Vib. 369, 50–62 (2016). https://doi.org/10.1016/j.jsv.2015.11.048
Yeh, S.L., Harne, R.L.: Origins of broadband vibration attenuation empowered by optimized viscoelastic metamaterial inclusions. J. Sound Vib. 458, 218–237 (2019). https://doi.org/10.1016/j.jsv.2019.06.018
Wang, Z., Zhang, Q., Zhang, K., Hu, G.: Tunable digital metamaterial for broadband vibration isolation at low frequency. Adv. Mater. 28, 9857–9861 (2016). https://doi.org/10.1002/adma.201604009
Yang, X.W., Lee, J.S., Kim, Y.Y.: Effective mass density based topology optimization of locally resonant acoustic metamaterials for bandgap maximization. J. Sound Vib. 383, 89–107 (2016). https://doi.org/10.1016/j.jsv.2016.07.022
Yi, K., Matten, G., Ouisse, M., Sadoulet-Reboul, E., Collet, M., Chevallier, G.: Programmable metamaterials with digital synthetic impedance circuits for vibration control. Smart Mater. Struct. 29, 035005 (2020). https://doi.org/10.1088/1361-665X/ab6693
Yi, K., Collet, M.: Broadening low-frequency bandgaps in locally resonant piezoelectric metamaterials by negative capacitance. J. Sound Vib. 493, 115837 (2021). https://doi.org/10.1016/j.jsv.2020.115837
Wu, K., Hu, H., Wang, L.: Optimization of a type of elastic metamaterial for broadband wave suppression. Proc. Royal Soc. A Math. Phys. Eng. Sci. 477, 20210337 (2021). https://doi.org/10.1098/rspa.2021.0337
Wu, K., Hu, H., Wang, L., Gao, Y.: Parametric optimization of an aperiodic metastructure based on genetic algorithm. Int. J. Mech. Sci. 214, 106878 (2022). https://doi.org/10.1016/j.ijmecsci.2021.106878
Xu, X., Barnhart, M.V., Li, X., Chen, Y., Huang, G.: Tailoring vibration suppression bands with hierarchical metamaterials containing local resonators. J. Sound Vib. 442, 237–248 (2019). https://doi.org/10.1016/j.jsv.2018.10.065
Zhao, P., Zhang, K., Zhao, C., Deng, Z.: Multi-resonator coupled metamaterials for broadband vibration suppression. Appl. Math. Mech. 42, 53–64 (2021). https://doi.org/10.1007/s10483-021-2684-8
Wei, W., Ren, S., Chronopoulos, D., Meng, H.: Optimization of connection architectures and mass distributions for metamaterials with multiple resonators. J. Appl. Phys. 129, 165101 (2021). https://doi.org/10.1063/5.0047391
Hu, G., Austin, A.C.M., Sorokin, V., Tang, L.: Metamaterial beam with graded local resonators for broadband vibration suppression. Mech. Syst. Signal Process. 146, 106982 (2021). https://doi.org/10.1016/j.ymssp.2020.106982
Celli, P., Yousefzadeh, B., Daraio, C., Gonella, S.: Bandgap widening by disorder in rainbow metamaterials. Appl. Phys. Lett. 114, 091903 (2019). https://doi.org/10.1063/1.5081916
Li, C., Jiang, T., He, Q., Peng, Z.: Stiffness-mass-coding metamaterial with broadband tunability for low-frequency vibration isolation. J. Sound Vib. 489, 115685 (2020). https://doi.org/10.1016/j.jsv.2020.115685
Yi, K., Liu, Z., Zhu, R.: Multi-resonant metamaterials based on self-sensing piezoelectric patches and digital circuits for broadband isolation of elastic wave transmission. Smart Mater. Struct. 31, 015042 (2022). https://doi.org/10.1088/1361-665X/ac3b1f
Ma, G., Sheng, P.: Acoustic metamaterials: from local resonances to broad horizons. Sci. Adv. 2, e1501595 (2016). https://doi.org/10.1126/sciadv.1501595
Kovacic I., Brennan M. J.: The Duffing equation: nonlinear oscillators and their behaviour, John Wiley & Sons, (2011). https://doi.org/10.1002/9780470977859.
Holmes, P.J., Moon, F.C.: Strange attractors and chaos in nonlinear mechanics. J Appl. Mech. Transact. ASME 50, 1021–1032 (1983). https://doi.org/10.1115/1.3167185
Szemplińska-Stupnicka, W.: Secondary resonances and approximate models of routes to chaotic motion in non-linear oscillators. J. Sound Vib. 113, 155–172 (1987). https://doi.org/10.1016/S0022-460X(87)81348-2
Nayfeh, A.H., Sanchez, N.E.: Bifurcations in a forced softening Duffing oscillator. Int. J. Non-Linear Mech. 24, 483–497 (1989). https://doi.org/10.1016/0020-7462(89)90014-0
Balachandran, B., Nayfeh, A.H.: Nonlinear motions of beam-mass structure. Nonlinear Dyn. 1, 39–61 (1990). https://doi.org/10.1007/BF01857584
**g, X.J., Vakakis, A.F.: Exploring nonlinear benefits in engineering. Mech. Syst. Signal Process. 125, 1–3 (2019). https://doi.org/10.1016/j.ymssp.2019.01.059
Kovacic I., Lenci S.: IUTAM symposium on exploiting nonlinear dynamics for engineering systems, Springer, (2019). https://doi.org/10.1007/978-3-030-23692-2.
Cabaret, J., Tournat, V., Béquin, P.: Amplitude-dependent phononic processes in a diatomic granular chain in the weakly nonlinear regime. Phys. Rev. E–Stat. Nonlinear Soft Matter Phys. 86, 1–10 (2012). https://doi.org/10.1103/PhysRevE.86.041305
Manktelow, K.L., Leamy, M.J., Ruzzene, M.: Analysis and experimental estimation of nonlinear dispersion in a periodic string. J. Vib. Acoust., Transact ASME 136, 1–8 (2014). https://doi.org/10.1115/1.4027137
Chakraborty, G., Mallik, A.K.: Dynamics of a weakly non-linear periodic chain. Int. J. Non-Linear Mech. 36, 375–389 (2001). https://doi.org/10.1016/S0020-7462(00)00024-X
Narisetti, R.K., Leamy, M.J., Ruzzene, M.: A perturbation approach for predicting wave propagation in one-dimensional nonlinear periodic structures. J. Vib. Acoust. Transact. ASME 132, 0310011–03100111 (2010). https://doi.org/10.1115/1.4000775
Konarski, S.G., Haberman, M.R., Hamilton, M.F.: Frequency-dependent behavior of media containing pre-strained nonlinear inclusions: application to nonlinear acoustic metamaterials. J. Acoust. Soc. Am. 144, 3022–3035 (2018). https://doi.org/10.1121/1.5078529
Meaud, J.: Nonlinear wave propagation and dynamic reconfiguration in two-dimensional lattices with bistable elements. J. Sound Vib. 473, 115239 (2020). https://doi.org/10.1016/j.jsv.2020.115239
Fang, X., Wen, J., Bonello, B., Yin, J., Yu, D.: Wave propagation in one-dimensional nonlinear acoustic metamaterials. New J. Phys. 19, 053007 (2017). https://doi.org/10.1088/1367-2630/aa6d49
Luo, B., Gao, S., Liu, J., Mao, Y., Li, Y., Liu, X.: Non-reciprocal wave propagation in one-dimensional nonlinear periodic structures. AIP Adv. 8, 015113 (2018). https://doi.org/10.1063/1.5010990
Li, Z.-N., Wang, Y.-Z., Wang, Y.-S.: Tunable mechanical diode of nonlinear elastic metamaterials induced by imperfect interface. Pro Royal Soc. A. 477, 20200357 (2021). https://doi.org/10.1098/rspa.2020.0357
Fraternali, F., Senatore, L., Daraio, C.: Solitary waves on tensegrity lattices. J. Mech. Phys. Solids 60, 1137–1144 (2012). https://doi.org/10.1016/j.jmps.2012.02.007
Fraternali, F., Carpentieri, G., Amendola, A., Skelton, R.E., Nesterenko, V.F.: Multiscale tunability of solitary wave dynamics in tensegrity metamaterials. Appl. Phys. Lett. 105, 201903 (2014). https://doi.org/10.1063/1.4902071
Manktelow, K., Leamy, M.J., Ruzzene, M.: Multiple scales analysis of wave-wave interactions in a cubically nonlinear monoatomic chain. Nonlinear Dyn. 63, 193–203 (2011). https://doi.org/10.1007/s11071-010-9796-1
Lazarov, B.S., Jensen, J.S.: Low-frequency band gaps in chains with attached non-linear oscillators. Int. J. Non-Linear Mech. 42, 1186–1193 (2007). https://doi.org/10.1016/j.ijnonlinmec.2007.09.007
Lepidi, M., Bacigalupo, A.: Wave propagation properties of one-dimensional acoustic metamaterials with nonlinear diatomic microstructure. Nonlinear Dyn. 98, 2711–2735 (2019). https://doi.org/10.1007/s11071-019-05032-3
Fortunati, A., Bacigalupo, A., Lepidi, M., Arena, A., Lacarbonara, W.: Nonlinear wave propagation in locally dissipative metamaterials via Hamiltonian perturbation approach. Nonlinear Dyn. 108, 765–787 (2022). https://doi.org/10.1007/s11071-022-07199-8
Xu, X., Barnhart, M.V., Fang, X., Wen, J., Chen, Y., Huang, G.: A nonlinear dissipative elastic metamaterial for broadband wave mitigation. Int. J. Mech. Sci. 164, 105159 (2019). https://doi.org/10.1016/j.ijmecsci.2019.105159
Bae, M.H., Oh, J.H.: Nonlinear elastic metamaterial for tunable bandgap at quasi-static frequency. Mech. Syst. Signal Process. 170, 108832 (2022). https://doi.org/10.1016/j.ymssp.2022.108832
**a, Y., Ruzzene, M., Erturk, A.: Dramatic bandwidth enhancement in nonlinear metastructures via bistable attachments. Appl. Phys. Lett. 114, 093501 (2019). https://doi.org/10.1063/1.5066329
**a, Y., Ruzzene, M., Erturk, A.: Bistable attachments for wideband nonlinear vibration attenuation in a metamaterial beam. Nonlinear Dyn. 102, 1285–1296 (2020). https://doi.org/10.1007/s11071-020-06008-4
Silva, P.B., Leamy, M.J., Geers, M.G.D., Kouznetsova, V.G.: Emergent subharmonic band gaps in nonlinear locally resonant metamaterials induced by autoparametric resonance. Phys. Rev. E 99, 1–14 (2019). https://doi.org/10.1103/PhysRevE.99.063003
Zega, V., Silva, P.B., Geers, M.G.D., Kouznetsova, V.G.: Experimental proof of emergent subharmonic attenuation zones in a nonlinear locally resonant metamaterial. Sci. Rep. 10, 1–11 (2020). https://doi.org/10.1038/s41598-020-68894-3
Fang, X., Wen, J., Bonello, B., Yin, J., Yu, D.: Ultra-low and ultra-broad-band nonlinear acoustic metamaterials. Nat. Commun. 8, 1–11 (2017). https://doi.org/10.1038/s41467-017-00671-9
Wu, K., Hu, H., Wang, L.: Nonlinear elastic waves in a chain type of metastructure: theoretical analysis and parametric optimization. Nonlinear Dyn. (2023). https://doi.org/10.1007/s11071-023-08413-x
Shen, Y., Lacarbonara, W.: Nonlinear dispersion properties of metamaterial beams hosting nonlinear resonators and stop band optimization. Mech. Syst. Signal Process. 187, 109920 (2023). https://doi.org/10.1016/j.ymssp.2022.109920
Shen, Y., Lacarbonara, W.: Nonlinearity enhanced wave bandgaps in metamaterial honeycombs embedding spider web-like resonators. J Sound Vib. 562, 117821 (2023). https://doi.org/10.1016/j.jsv.2023.117821
Fang, X., Wen, J., Benisty, H., Yu, D.: Ultrabroad acoustical limiting in nonlinear metamaterials due to adaptive-broadening band-gap effect. Phys. Rev. B 101, 1–10 (2020). https://doi.org/10.1103/PhysRevB.101.104304
Gong, C., Fang, X., Cheng, L.: Band degeneration and evolution in nonlinear triatomic metamaterials. Nonlinear Dyn. 2, 1–16 (2022). https://doi.org/10.1007/s11071-022-07860-2
Chen, Y.Y., Barnhart, M.V., Chen, J.K., Hu, G.K., Sun, C.T., Huang, G.L.: Dissipative elastic metamaterials for broadband wave mitigation at subwavelength scale. Compos. Struct. 136, 358–371 (2016). https://doi.org/10.1016/j.compstruct.2015.09.048
Bukhari, M., Barry, O.: Spectro-spatial analyses of a nonlinear metamaterial with multiple nonlinear local resonators. Nonlinear Dyn. 99, 1539–1560 (2020). https://doi.org/10.1007/s11071-019-05373-z
Krack M., Gross J.: Harmonic balance for nonlinear vibration problems, Springer, 2019. https://doi.org/10.1007/978-3-030-14023-6.
Malatkar, P., Nayfeh, A.H.: Steady-State dynamics of a linear structure weakly coupled to an essentially nonlinear oscillator. Nonlinear Dyn. 47, 167–179 (2007). https://doi.org/10.1007/s11071-006-9066-4
Zhang, Y., Kong, X., Yue, C., ** and combined stiffness. Nonlinear Dyn. 105, 167–190 (2021). https://doi.org/10.1007/s11071-021-06615-9
Acknowledgements
This work was supported in part by the National Key Research and Development Program of China under Grant No. 2021YFE0110900 and in part by the National Natural Science Foundation of China (NSFC) under Grants No. U22B2078, 11991033 and 12202052. The involvement of Ivana Kovacic was supported by the Ministry of Science, Innovation and Technological Development of the Republic of Serbia via the NOLIMAST project.
Funding
The authors list their funding sources in the Acknowledgements.
Author information
Authors and Affiliations
Corresponding authors
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Zhao, J., Zhou, H., Yi, K. et al. Ultra-broad bandgap induced by hybrid hardening and softening nonlinearity in metastructure. Nonlinear Dyn 111, 17687–17707 (2023). https://doi.org/10.1007/s11071-023-08808-w
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11071-023-08808-w