1. Project: 010 Oxford - 12600 04/03/2019 Page: 1
SJ MEPLA Calculation protocol:
Geometry:
Basic form: quadrangle
Corner x y
mm mm
1 0.00 0.00
2 2065.00 0.00
3 2065.00 3320.00
4 0.00 3320.00
Supports:
Edge supports:
from-to kind of supports
1 2 w : fixed - u,v,phi,theta: free (simply supported)
2 3 w : fixed - u,v,phi,theta: free (simply supported)
3 4 w : fixed - u,v,phi,theta: free (simply supported)
4 1 w : fixed - u,v,phi,theta: free (simply supported)
Spring supports:
----- position ---- ------------ rigidity ---------
Package layer x y z Cx Cy Cz
mm mm mm N/mm N/mm N/mm
1 1 0.00 0.00 0.00 1.00000e+000 1.00000e+000 0.00000e+000
This protocol was created using SJ MEPLA. Copyright 2000-2005 by SJ Software GmbH Aachen, Germany.
2. Project: 010 Oxford - 12600 04/03/2019 Page: 2
1 1 2065.00 0.00 0.00 0.00000e+000 1.00000e+000 0.00000e+000
2 1 0.00 0.00 0.00 1.00000e+000 1.00000e+000 0.00000e+000
2 1 2065.00 0.00 0.00 0.00000e+000 1.00000e+000 0.00000e+000
Layers:
Mechanical properties:
Package layer e-mod. poiss thickn. density alpha t dT prestressing
N/mm² - mm kg/m³ 1/K K N/mm²
2 1 70000.00 0.23 12.00 2550.00 1.0000e-005 0.00 0.00
1 1 70000.00 0.23 10.00 2550.00 1.0000e-005 0.00 0.00
Intermediate pane space:
Package thick int.-pressure dT gamma
from-to mm N/mm² C 1/K
1 2 16.00 1.01000e-001 0.00 3.66000e-003
External pressure:
pressure dH (difference of height)
N/mm² m
1.01000e-001 0.0
Loads:
Face loads:
(constant distributed):
Package pressure
N/mm²
This protocol was created using SJ MEPLA. Copyright 2000-2005 by SJ Software GmbH Aachen, Germany.
3. Project: 010 Oxford - 12600 04/03/2019 Page: 3
2 0.00000e+000
1 0.00000e+000
Pendulum impact: (acting onto glass package 1)
Point of impact
x y drop height
mm mm mm
1032.50 1660.00 190.0
velocity starting height
mm/s mm
1930.75 -3.67
Pendulum body: (two pneumatic tyres, DIN EN 12600)
Tyre radius : 51 mm
Outer radius: 194.5 mm
Air pressure: 4.0 bar
Weight : 50 kg
Tyre-stiffness: (determined from tests)
non-linear spring rigidity
C = 300. + 2. * |dw| [N/mm]
Calculation approaches:
small deflections, linear
dynamic calculation
This protocol was created using SJ MEPLA. Copyright 2000-2005 by SJ Software GmbH Aachen, Germany.
4. Project: 010 Oxford - 12600 04/03/2019 Page: 4
Extreme values from dynamic calculation: duration 0.08000 [s]
Minimum und maximum displacements (at nodes):
- position- displacement
Package x y w
mm mm mm
2 860.42 332.00 -0.00 (min)
1032.50 1660.00 21.70 (max)
1 1032.50 498.00 -3.76 (min)
1032.50 1660.00 21.82 (max)
Max principal stress (in gaussian points):
Package layer x y stress
mm mm N/mm²
2 1 1071.29 1697.42 24.68
1 1 993.71 1697.42 54.08
Pendulum:
force accel. w(plate)
N m/s² mm
4223.98 -84.48 21.82 (max)
0.00 0.00 -0.00 (min)
Intermediate pane space:
Package pressure
from-to N/mm²
This protocol was created using SJ MEPLA. Copyright 2000-2005 by SJ Software GmbH Aachen, Germany.
5. Project: 010 Oxford - 12600 04/03/2019 Page: 5
1 2 1.02183e-001 (max)
1 2 1.00814e-001 (min)
Springs: (order as defined above)
Package layer u v w Fx Fy Fz
mm mm mm N N N
Spring: x: 0.00 y: 0.00
1 1 0.00 0.00 0.00 0.00 0.00 0.00 (max)
1 1 0.00 0.00 0.00 0.00 0.00 0.00 (min)
Spring: x: 2065.00 y: 0.00
1 1 0.00 0.00 0.00 0.00 0.00 0.00 (max)
1 1 0.00 0.00 -0.00 0.00 0.00 0.00 (min)
Spring: x: 0.00 y: 0.00
2 1 0.00 0.00 0.00 0.00 0.00 0.00 (max)
2 1 0.00 0.00 0.00 0.00 0.00 0.00 (min)
Spring: x: 2065.00 y: 0.00
2 1 0.00 0.00 -0.00 0.00 0.00 0.00 (max)
2 1 0.00 0.00 -0.00 0.00 0.00 0.00 (min)
This protocol was created using SJ MEPLA. Copyright 2000-2005 by SJ Software GmbH Aachen, Germany.
