Consider the attached pdf's- chapter 2 derivation.pdf(which is derivation of equations involving a shallow truss element) and Deep truss element using Green's strain.pdf.
My question is more of an intuitive one:Now considering the shallow truss eleemnt.pdf, we have the axial force "N" a part of the stiffness matriz similarly for deep truss eleemnt.My question is that a compressive reduces stiiffness and a tensile N increases stiffness, how is this reflected in the equations?
Can anyone help?
| Attachment | Size |
|---|---|
| chapter 2 derivation.pdf | 110.58 KB |
| Deep truss element using Greens strain.pdf | 219.16 KB |