Or do we keep the element stiffness matrix symbolic, assembly the global stiffness matrix over our whole domain made up of individual rectangular elements and when required to find the deflection at particular points substitute the coordinates of the point into the matrix to get a number out deflection=[K]^-1*(F) to get a number out?
Can you kindly tell me where the stiffness matrix of a rectangular element has to be evaluated at? as you know the stiffness matrix is a function of position inside the element as defined by its x and y coordinates
Or do we keep the element stiffness matrix symbolic, assembly the global stiffness matrix over our whole domain made up of individual rectangular elements and when required to find the deflection at particular points substitute the coordinates of the point into the matrix to get a number out deflection=[K]^-1*(F) to get a number out?
Can you kindly tell me where the stiffness matrix of a rectangular element has to be evaluated at? as you know the stiffness matrix is a function of position inside the element as defined by its x and y coordinates