Q$4.$ Plane Truss

For the plane truss shown in the Fig$\mathrm{.}4.,$ cross section of each member of the structure is circular and diameter is d$.$ Applied forces are F$1$ and F$2.$

Determine,

f$)$ Elemental stiffness matrix

g$)$ Global stiffness matrix

h$)$ Nodal displacements

i$)$ Element forces

j$)$ Reaction forces

Figure $4.$ Plane Truss

Use: $E=210$GPa,$d=60mm$ for all members.