Research Article
Thermomechanical Impact of Polyurethane Potting on Gun Launched Electronics
Table 4
Material assumptions.
| Part | Material | Young's modulus | Poisson's ratio | Mass density
| Ref. temperature | Material model | MPa | Kg/m3 |
°C |
| Solder | Solder-sn60-pb40 | 3 + 05 | 0.4 | 8598 | All | Linear elastic plastic | Chips | Ceramic_X7R | 1.05 + 05 | 0.3 | 5624 | All | Linear elastic plastic | Can | Aluminum | 7 + −4 | 0.3 | 2716 | All | Linear elastic plastic | Potting | Alchemix | 6131 | 0.49 | 1604 | −51 | Linear elastic/viscoelastic | Potting | Alchemix | 120 | 0.49 | 1604 | 23 | Linear elastic/viscoelastic | Potting | Alchemix | 7.2 | 0.49 | 1604 | 71 | Linear elastic/viscoelastic | Connectors | Plastic | 3.6 + 04 | 0.23 | 4235 | All | Linear elastic plastic | Board | FR4 | 2.5+ 04 | 0.15 | 1925 | All | Orthotropic elasticity |
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