. . "Virginia Polytechnic Institute and State University." . . . . . . "Simultaneous analysis and design"@en . . . . . . . . . . . . . . . . "Conjugate gradient method." . . "Optimization." . . "Simultaneous equations." . . "Linear equations." . . "Stress-strain relationships." . . "Structural analysis." . . "Structural design." . . "Nonlinear systems." . .