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Attenuated short wavelength buckling and force propagation in a biopolymer-reinforced rod

Submitted by Wanliang Shan on

W.L. Shan, Z. Chen, C.P. Broedersz, A.A. Gumaste, W.O. Soboyejo, C.P. Brangwynne, Soft Matter, 9:194-199, 2013. 

 

In this paper, we investigate short wavelength buckling of a thin elastic rod embedded in an elastic gelatin biopolymer network. Using a combination of micro-mechanical testing, microscopic imaging, as well as theory, we show that the buckling penetration depth can be tuned by varying the mechanical properties of the rod and the rod–gel interface.

NONLINEAR BENDING OF STRAIGHT BEAMS

Submitted by kannanstkn on

 Can any one please help me out in Nonlinear analysis of beams using Direct iteration method or Newton Raphson.

Here i am producing some of algorithms from the book of J.N.Reddy,"An_Introduction_to_Nonlinear_Finite_Element_Analysis__2004".

I have a doubt in the term DW, whether that is the difference between transverse dispalcements of Consecutive Nodes  or the difference between transverse dispalcements of Node on Consecutive iterations.