Example on Tetrahedral Element
enter the nodal coordinates
element 1: nodes: 1,2,3,5
element 2: nodes: 1,3,4,5
Expand the matrices
Divide k1
Expand k1
Divide k2
Expand k2
Reduce the matrix: Keep the rows and columns for nodes 2 and 5 only
Boundary conditions
Force Matrix
Reduced force matrix
Solve for the displacement unknowns
Solve for the force unknowns
Stresses in element 1
Stresses in element 2
