Presentation 406 - International Planetary Probe Workshop

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PICA Recession in Stagnation Flow Mars Science Laboratory • The predicted d recession rates agreed within ±20% to the measured values over MSL-relevant conditions except at low heat rates • Calculated recession rates use TITAN, a 2D thermal response model. Details on TITAN calculations: Y.K. Chen, T. Gökçen, K.T. Edquist, “Two-Dimensional Ablation and Thermal Response Analyses for Mars Science Laboratory Heatshield,” AIAA 2009-4235. June 16, 2010 7 th International Planetary Probe Workshop (IPPW7) HHH-13
PICA in shear: well-behaved and no signs of failure Mars Science Laboratory • PICA material is robust at all tested conditions • RTV-560 filled gaps perform well • Recession rates vary from model predictions (up to 150%) factored into margins June 16, 2010 7 th International Planetary Probe Workshop (IPPW7) HHH-14
Page 1 and 2: The Evolution of the Mars Science L
Page 3 and 4: The MSL TPS Team • ARC: - Robin B
Page 5 and 6: MSL Heatshield Peak Environments (b
Page 7 and 8: Material Failures During Shear Test
Page 9 and 10: New Direction: Define a New TPS for
Page 11 and 12: Flow direction Different material,
Page 13: MSL Thermal Development for PICA Ma
Page 17 and 18: PICA Bondline Temperature Predictio
Page 19 and 20: Heatshield TPS Margin Assessment Ma
Page 21 and 22: Work To Go Mars Science Laboratory
Page 23: Acknowledgments Mars Science Labora

Presentation 406 - International Planetary Probe Workshop

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