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Table 1 Comparison of the measured curvature change Δκ measured of hygromorphs determined in a climate chamber and the modeled curvature change Δκcalculated by determination of elastic moduli (E) and hygrometric coefficients of linear expansion of the active layer (αa)

From: Fabrication of 3D-printed hygromorphs based on different cellulosic fillers

Sample 25% AC 50% AC 20% MCC 30% MCC 50% MCC
Δκmeasured (°) 3.1 2.6 4.5 5.1 6.5
Δκmodeled (°) 3.2 3.1 3.1 4.8 6.4
E (MPa) 458 ± 35.9 407 ± 35.3 289 ± 42.7 247 ± 22.6 478 ± 56.0
αa (−) 0.011 0.012 0.006 0.010 0.01