Manufacturing Simulation Using Finite Element - Finite Element Analysis for Satellite Structures - page 297

Fig. 7.23 Radial stress
versus panel depth

0

0.5

1

1.5

2

2.5

3

3.5

4

-600 -500 -400 -300 -200 -100 0 100

Radial stress (MPa)

Fig. 7.24 Test Case-2 finite
element model

Lateral BC

Symmetry BC

single impact model is to adjust simulation parameters such as, step analysis time,
and mesh density. It acts also as the initial point of the shot peening simulation.
After running a couple of trials, the step analysis time is estimated to be 7e-6 s and
the element size in the area of impact is chosen to be 0.1 and 0.2 mm elsewhere.
For this test case, a contact surface is added between the panel and the stand.
Simulation results are shown in Fig. 7.22 and the radial stress versus panel height
is shown in Fig. 7.23 .
As stress results show that the radial stress start decaying at depth of 2 mm,
which proved that replacing the contact surface between the panel and the stand is
necessary to accelerate simulation time of the shot peening process.