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Matrix Notation and Operations
The Direct Approach in OneDimension
13 other sections not shown
algebraic applied approximation assembly assume axial body force boundary conditions boundary segment calculus coefficients column common computed concepts consider constant corresponding define deflection degrees of freedom denotes diagonal differential equation displacement elastic element interpolation element matrices element model error evaluate exact solution example finite element analysis finite element method flux force vector formulation Galerkin Gaussian quadrature given gives global coordinates heat conduction illustrated in Fig interpolation functions inverse Jacobian line element linear interpolation load mass matrix mesh natural coordinates nodal parameters Note numerical integration one-dimensional plane strain plane stress polynomial problem procedure quadratic quadrature quadrilateral quantities radial Recall result scalar second derivative selected shear shown in Fig solve square matrix stiffness matrix subroutine symmetric system equations temperature thermal three node topology total potential energy triangle triangular typical element unit coordinates usually utilized variable zero