v3.03.118 SSLS118 - Square plate placed under sinusoidal pressure#

Summary:

The case of a monolayer then multilayer square plate is treated, which is simply supported and subjected to sinusoidal pressure.

We calculate the displacement in the center, the constraints

at the lower, middle and upper interfaces, the membrane forces

, the shear forces

And the moments

and

The test includes 14 models: with regard to models A to F, the results obtained are compared for models DKQ, DSQ, DKT, DST, COQUE_3D with triangular cells and COQUE_3D with rectangular cells.

G and H models allow the results to be tested in a user frame that is different from the global frame of reference.

The I and J models measure the sensitivity of the results to the fineness of the mesh, for configuration DSQ.

The K to N models concern the multilayer plate, for models DST and DSQ, in global and user coordinate systems. They make it possible to estimate the distribution of plane and transverse shear stresses inside the plate.

The O to R models validate the Q4G element.

The S to T models validate the Q4GG modeling.

W modeling validates the T3G element.