folds, or also Runzeln, crimpings become or shearing of thin, plastic and/or flexible materials such as sheet metal or paper or several laminated situations of such materials produces by breaking. To the formation of wrinkles and/or. Folding can also come it, if the surface layer of a limited surface expands by heating up or other factors and thus tries to take more surface, than is available. This effect steps z. B. with the fold throw of the asphaltic surface of roadways with large heat in feature. With group materials, D. h. laminated and stuck together materials, can come off folds by the different Wärmeausdehnungskoeffizienten of the Verbundmaterialen.
A similar process of the formation of wrinkles according to the same mechanical principles takes place in geology and under folding (geology) is described.
One the most famous Modellattraktoren of the chaos theory, which became Rössler Attraktor, after the example of the function drop masses - mixing machine (taffy more puller) designs. The substantial principles for mixture added are here folds and stretching.
Narrow, pressed, evenly running folds in textiles become as Plissee (frz. Plissé) designates.
see also
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