Biomedical Engineering Reference
In-Depth Information
Fig. 4.29 a Test scenario of the indenter compression test of an airplane seat with fabric lining and
leather cover, b corresponding FE-modell and c verification of the force-displacement test data
b. This effect may possibly be associated with the pre-tension of the fabric material
being stretched to the rim. The material thus has partially relaxed.
To verify the FE-seat model with the plain fabric material under pre-tension
attached to the rim with leather cover material, indenter testing was conducted
again for a single position, cf. Fig.
4.29
a. Figure
4.29
b depicts the corresponding
FE-model at the maximum indenter position and Fig.
4.29
c shows the force-
displacement data of the test, compared with the simulation output. A sufficient fit
was achieved. Hysteresis effects shown in Fig.
4.29
c were larger compared to
those depicted in Fig.
4.28
a, b. This effect may possibly be associated with the
combination of fabric and cover material, whereby the cover material probably
contributes to the hysteresis characteristic.
