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WebSep 27, 2024 · Figure 7. Determination of mechanical properties of samples of polyurethane foams during dynamic compression: (a) scheme, (b) realization of the measurement. y ( z) = A ( z) ⋅ sin ( ω t), E10. where y ( z) is a defined cylindrical lift, A ( z) is the input amplitude, and ω = 2 π f is an angular velocity. WebJun 21, 2024 · The mechanical behavior of closed- and open-cell foams was analyzed using a computational homogenization strategy based on the finite element simulation of a representative volume element of the foam microstructure. The representation of the foam took into account the main microstructural features, namely density, fraction of solid … earring backs stopper bullet style white gold
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