Improving buckling critical stress of sheet with the elastic pressure on the surfaces of sheet and it's application

The distribution of interior critical stress of different casings under different circumstances are analyzed by way of the establishment of nonlinear FEM,also the critical in-situ stress equations of different operating interior pressures are achieved.

In the paper,based on the governing equations of buckling,the buckling equation of anti-symmetrically laminated plate is established and the critical stresses are calculated under two-axial compressive loads in-plane.

New theory in the front of theoretical basis research of molecular thermodynamics 4: on molecular structure of organic compound and theoretical equation of critical pressure;

Prediction of the critical pressures of alkanes using a quantitative structure property relationship;

The critical pressure of two spans beams with one end fixed and the other hinge joined;

From the angle critical force,this thesis analyses the stability of the formation of axle shaft spline in the extrusion and the calculation of the constraints available after losing stability.

First we suppose a deflection expression on principle of minimum potential energy for an opening elastic rectangular thin plate loaded with critical force, which can meet the side conditions of displacement or force.

The mathematical model, used to calculate the buckling critical force of compliant parallel four-bar mechanism with right-angle-notch flexure hinges, was established with the approximative differential equations of the flexible curve based on the bending theory in strength of materials.