How strong
are real crumpled sheets? Mylar experiment
K.
Matan, S. Nagel, R. Williams and TW PRL, January 2002
Predicting
height:
10
cm
work
done by sinking weight --> ridge energy
Flat
facets are of similar size.
Facets
are just small enough to avoid each other
M (grams)
measured
predicted
Conclusions
Measured power does not follow prediction
Prediction should only hold qualitatively
Thickness is not small compared to facet size
Prediction works better where it is more applicable.
Material
is weaker than predicted
Þ plastic deformation seems important for this experiment
h
compression Dh (cm)