VMR031-T3

VMR031-T3
Three-Layer Sandwich Shell under Normal Pressure Loading

Test Description

A simply supported square sandwich plate with a 10 inch side length is subjected to a uniform pressure of 100 psi.

A quarter model is considered.

Material PropertiesGeometric PropertiesBoundary conditionsLoading

Outer face sheets:

Ex=10.0E6 psi
Ey=4.0E6 psi
ʋxy=0.3
Gxy=1.875E6 psi

Central core:

Ex=0
Gxz=3.0E4 psi
Gyz=1.2E4 psi

Side length of the square=10 inches

Simply supported at x=0 and y=0

Symmetric at approximately x=5 and y=5

Uniform normal pressure of 100 psi

Results Comparison

Results are tabulated and displayed as in the NAFEMS manual.

Table 26: Using SHELL281

 Mechanical APDLRATIOTEST

Z deflection

-0.122

0.993

vmr031-t3-281

Ϭxx

33752.207

0.980

vmr031-t3-281

Ϭyy

13143.214

0.985

vmr031-t3-281

Гxy

-4982.367

0.983

vmr031-t3-281


Table 27: Using SHELL181

 Mechanical APDLRATIOTEST

Z deflection

-0.122

0.993

vmr031-t3-181

Ϭxx

32874.289

0.954

vmr031-t3-181

Ϭyy

12943.020

0.970

vmr031-t3-181

Гxy

-4880.513

0.963

vmr031-t3-181


Element Mechanical APDL Ratio Test Input