Abstract
To investigate the influence of number m and length-diameter ratio on structural integrity of solid propellant under temperature loading, the thermoviscoelastic large deformation incremental constitutive equation was derived from Total Lagrangian method. Nine different numbers m and eight length-diameter ratios for calculation 72 models were selected to measure the effects on the structural integrity. The results show that, number m and length-diameter ratio have cooperative effects on the maximum value of equivalent Von Mises stress and strain. If the length-diameter ratio is larger than 3, it's concluded that the maximum value of equivalent Von Mises stress and strain are mainly determined by number m of solid propellant.
| Original language | English |
|---|---|
| Pages (from-to) | 1565-1568 |
| Number of pages | 4 |
| Journal | Hangkong Dongli Xuebao/Journal of Aerospace Power |
| Volume | 22 |
| Issue number | 9 |
| Publication status | Published - Sept 2007 |
Keywords
- Aerospace propulsion system
- Diameter ratio
- Incremental constitutive equation
- Large deformation
- Length-diameter ratio
- Solid rocket motor
- Structural integrity
- Thermoviscoelasticity