earticle

영어

membrane has strong axial stiffness, but little bending stiffness. Therefore membrane structures are unstable structures initially.
These soft structures need to be introduced initial stresses first because of its initial unstable state, and it happens large deformation phenomenon. To find the structural shape after large deformation caused by initial stiffness introduced, we need the shape analysis considering geometric nonlinearity in structural design procedure. In this study, we have done the shape analysis and the stress-deformation analysis of the membrane structures and then study the safety by the NASS(Nonlinear Analysis for Spatial Structures) which is the program for nonlinear analysis. And also we investigate into the stress concentration at crack of the structures and stress distribution for creak length investigate