Winding angle

The winding angle is the fiber orientation of a laminate .

Scheme of the roll angle in rolled up material

The term was also used by Spiegel in an article reporting on a publication by Enrique Cerda . The physicist at the University of Santiago de Chile claimed in 2008 that rolled up material such as B. paper, foil or metal always forms the same "universal roll angle" of about 24.1 degrees. Enrique Cerda had received the Ig Nobel Prize in physics the year before for his work on how bedsheets crease .

Individual evidence

↑ M. Flemming, G. Ziegmann, S. Roth: Verbundbauweise. Springer, Google Books, 1999, accessed November 7, 2010 .
↑ Wrap angle in the roll . In: Der Spiegel . No. 27 , 2008 ( online ).
↑ P. Ball: Universal law of coiling. Nature 453, 966 (2008), accessed on December 31, 2010 (English, full article not available free of charge).
^ V. Romero, TA Witten, E. Cerda: Multiple coiling of an elastic sheet in a tube. Proceedings of the Royal Society A, accessed December 31, 2010 .
^ The 2007 Ig Nobel Prize Winners. Improbable Research, accessed November 7, 2010 .

[1] M. Flemming, G. Ziegmann, S. Roth: Verbundbauweise. Springer, Google Books, 1999, accessed November 7, 2010 .

[2] Wrap angle in the roll . In: Der Spiegel . No. 27 , 2008 ( online ).

[3] P. Ball: Universal law of coiling. Nature 453, 966 (2008), accessed on December 31, 2010 (English, full article not available free of charge).

[4] V. Romero, TA Witten, E. Cerda: Multiple coiling of an elastic sheet in a tube. Proceedings of the Royal Society A, accessed December 31, 2010 .

[improbable_2007-5] The 2007 Ig Nobel Prize Winners. Improbable Research, accessed November 7, 2010 .