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Compressive fatigue of closed-cell thermoplastic elastomeric foams: effect of relative density
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DOI：10.1016/j.ijfatigue.2026.109879.png)
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Abstract
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• Fatigue behaviour of TPU foams is investigated at different relative densities. • Physical gas foaming enables high-precision sample preparation. • Damage rate and residual strain accumulation decrease with relative density. • Absorbed, released, and dissipated energy increase with relative density. • Fatigue-damaged cells show pinholes and cracks after cyclic compression.
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