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ANSYS analysis and structural calculation for Large glass window
1. Importing of Window 3D model from SOLID EDGE
We use ANSYS 17.0. ANSYS can import almost format of 3D model from Solid edge. After converting
3D model into igs 3D file in solid edge ANSYS can use igs 3D model as geometrical model.
Figure 1. Importing 3D geometrical model from Solid Edge
2. Material properties [1, 2]
Density
2500
m
3
Kg
Young’s modulus
70Gpa
Poisson’s ratio
0.23
Compress
strength
880-930MPa
Tensile strength
30-90 MPa
Bending strength
30-100MPA
[1] EN 572-1:2004. Glass in Building – Basic Soda Lime Silicate Glass Products – Part 1: Definitions
and General Physical and Mechanical Properties. CEN, 2004.
[2] Glafo, Glasforskningsinstitutet. Boken om glas. Allkopia, Växjö, Sweden, (2005)
3. Determination of wind load
Wind flow is stopped at surface of window. The pressure can be expressed from wind velocity
(1)ρvP =
2
1
2
where , .29ρ = 1
m
3
Kg
00 7.78v = 1
h
Km
= 2
s
m
Substituting these value into Eq. (1)
(2)ρv ρv 98PaP =
2
1
2
=
2
1
2
= 4
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The total force can be written asF
(3)×P ×4×498 .97KNF = A = 4 = 7
4. The analysis of Glass
Two side, thus bottom and top sides are fixed and pressure load of 498Pa acted on glass surface.
Glass widow is composed of three layers.
Figure 2 shows FE mesh
Figure 2 FE mesh of Glass layer
Figure 3. Deflection plot (Maximum deflection; 15mm)
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Figure 4. Maximum principal stress plot (Maximum stress; 22MPa)
Therefore, Glass is sufficiently safe.
5. The analysis of frame
We consider only one of bottom and top frame due to symmetricity.
One of frame is acted by ..97KNF = 7
Figure 5. Geometry for frame (bottom)
Figure 6. Boundary and loading condition
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Figure 7. FE model
Figure 8. Von-Mises stress plot (Maximum stress; 33.5Mpa)
Figure 9. Displacement plot (Maximum displacement; 0.2mm)
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6. Conclusion
Table 1. Safety of glass
Maximum
stress(MPa)
Strength
Maximum
deflection(mm)
Safety
21
30-90Mpa
15
Safe
Table 2. Safety of frame (Aluminium)
Maximum
stress(MPa)
Strength
Maximum
deflection(mm)
Safety
33.5
200Mpa
0.2
Safe
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