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The paper discusses an experimental campaign conducted on a cantilever composite shell with embed-
ded Macro Fiber Composite (MFC) patch and strain gauge. The initial conical shape of the shell’s free configura-
tion is designed to be modified after flattening and clamping one of its short edge sides. The prestressed specimen
possesses two distinct stable configurations, which are characterized by significant differences in terms of static de-
formations and associated natural frequencies. To study the dynamic behavior of the shell, a harmonic kinematic
excitation is applied to its clamped side using an electrodynamic shaker. In addition to measuring the dynamic
response of the shell using the strain gauge, the experimental test also includes the simultaneous measurement
of the energy recovered on the MFC patch. By conducting excitation frequency and amplitude sweeps, various
dynamic regimes are explored. The resonance scenarios occurring around the two natural frequencies associated
with the stable configurations exhibit different types of softening behavior. The threshold level of excitation ampli-
tude required to snap-through motion in the shell is identified. Additionally, experimental power generation maps
are plotted on the excitation frequency-amplitude plane. These maps serve as valuable tools for gaining insights
into the design considerations for vibration energy harvesting applications at low as well as large level of ambient
excitation. The results contribute to the understanding of the considered bistable shell’s dynamic characteristics
and offer practical guidance for its potential applications in energy harvesting. Future developments will focus on
exploring the energy harvesting possibilities presented by cantilever shells that possess four steady stable config-
urations. The quadristable shell holds potential for more efficient energy conversion and will be investigated to
determine its effectiveness in presence of multiple snap-through mechanisms.
