Review of Test Data Indicates Conservatism for Tile Penetration

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Review of Test Information Indicates Conservatism for Tile Penetration PowerPoint Presentation

Review of Exam Data Indicates Conservatism for Tile Penetration

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Review of Test Data Indicates Conservatism for Tile Penetration

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1. Review of Test Data Indicates Conservatism for Tile Penetration • The existing SOFI on tile test data used to create Crater was reviewed along with STS-87 Southwest Enquiry data • Crater overpredicted penetration of tile coating significantly • Initial penetration to described past normal velocity • Varies with book/mass of projectile (e.g., 200ft/sec for 3cu. In) • Meaning free energy is required for the softer SOFI particle to penetrate the relatively hard tile coating • Test results do show that it is possible at sufficient mass and velocity • Conversely, once tile is penetrated SOFI tin can crusade significant damage • Small-scale variations in total energy (above penetration level) can cause significant tile damage • Flight Condition is significantly outside of examination database • Book of ramp is 1920cu in vs iii cu in for exam

2. Recommend Immediate Visual Inspection of Columbia • The Crater software tin can not predict damage to Columbia because the foam piece that hit the ship was big and was travelling very quickly. • Even tiny foam particles can penetrate the tiles when they strike with sufficient velocity. • Once tiles are penetrated, pregnant damage to the spacecraft is possible. • The foam slice that hit Columbia was 600 times bigger than the foam used to calibrate Crater. • 1920 in3 vs. iii in3 for examination. • Therefore, as a predictor, Crater is useless in this instance.

3. Recommend Firsthand Visual Inspection of Columbia • The Crater software can non predict damage to Columbia because the cream piece that striking the ship was big and was travelling very quickly. • Even tiny foam particles tin can penetrate the tiles when they strike with sufficient velocity. • Once tiles are penetrated, meaning damage to the spacecraft is possible. • The cream piece that hitting Columbia was 600 times bigger than the foam used to calibrate Crater. • 1920 in3 vs. iii in3 for test. • Therefore, every bit a predictor, Crater is useless in this instance.

4. Recommend Firsthand Visual Inspection of Columbia • The Crater software can not predict damage to Columbia because the foam piece that hit the ship was big and was travelling very quickly. • Fifty-fifty tiny cream particles tin penetrate the tiles when they strike with sufficient velocity. • Once tiles are penetrated, meaning impairment to the spacecraft is possible. • The foam slice that hit Columbia was 600 times bigger than the foam used to calibrate Crater. • 1920 in3 vs. three in3 for exam. • Therefore, every bit a predictor, Crater is useless in this case.

5. Recommend Immediate Visual Inspection of Columbia • The Crater software can non predict damage to Columbia considering the cream slice that hit the transport was big and was travelling very speedily. • Even tiny foam particles can penetrate the tiles when they strike with sufficient velocity. • One time tiles are penetrated, significant impairment to the spacecraft is possible. • The foam piece that hit Columbia was 600 times bigger than the foam used to calibrate Crater. • 1920 in3 vs. 3 in3 for test. • Therefore, equally a predictor, Crater is useless in this instance.

6. Recommend Immediate Visual Inspection of Columbia • The Crater software tin not predict impairment to Columbia because the foam slice that hit the transport was big and was travelling very speedily. • Even tiny foam particles can penetrate the tiles when they strike with sufficient velocity. • In one case tiles are penetrated, significant damage to the spacecraft is possible. • The cream piece that hitting Columbia was 600 times bigger than the foam used to calibrate Crater. • 1920 in3 vs. iii in3 for examination. • Therefore, as a predictor, Crater is useless in this instance.

7. Recommend Immediate Visual Inspection of Columbia • The Crater software tin not predict impairment to Columbia because the foam piece that hit the ship was big and was travelling very rapidly. • Even tiny foam particles can penetrate the tiles when they strike with sufficient velocity. • One time tiles are penetrated, meaning damage to the spacecraft is possible. • The foam piece that hitting Columbia was 600 times bigger than the foam used to calibrate Crater. • 1920 in3 vs. iii in3 for exam. • Therefore, as a predictor, Crater is useless in this case.

8. Recommend Immediate Visual Inspection of Columbia • The Crater software can not predict harm to Columbia considering the foam piece that hit the send was big and was travelling very quickly. • Even tiny cream particles can penetrate the tiles when they strike with sufficient velocity. • One time tiles are penetrated, significant damage to the spacecraft is possible. • The foam slice that hitting Columbia was 600 times bigger than the cream used to calibrate Crater. • 1920 in3 vs. iii in3 for test. • Therefore, as a predictor, Crater is useless in this case.

9. Recommend Firsthand Visual Inspection of Columbia • The Crater software can not predict harm to Columbia because the foam piece that hitting the send was big and was travelling very apace. • Even tiny foam particles can penetrate the tiles when they strike with sufficient velocity. • Once tiles are penetrated, significant harm to the spacecraft is possible. • The foam piece that striking Columbia was 600 times bigger than the foam used to calibrate Crater. • 1920 in3 vs. 3 in3 for examination. • Therefore, as a predictor, Crater is useless in this case.

10. Recommend Firsthand Visual Inspection of Columbia • The Crater software can not predict damage to Columbia because the cream piece that hit the ship was large and was travelling very speedily. • Even tiny foam particles can penetrate the tiles when they strike with sufficient velocity. • In one case tiles are penetrated, significant damage to the spacecraft is possible. • The foam piece that hit Columbia was 600 times bigger than the foam used to calibrate Crater. • 1920 in3 vs. 3 in3 for test. • Therefore, equally a predictor, Crater is useless in this case.

11. Recommend Immediate Visual Inspection of Columbia Sample damage from a very small cream hit Size of foam that hit Columbia is 600 times bigger

12. Recommend Immediate Visual Inspection of Columbia Sample damage from a very small foam hit Size of foam that hit Columbia is 600 times bigger

13. Recommend Immediate Visual Inspection of Columbia Recommend Immediate Visual Inspection of Columbia Sample harm from a very small "dime size" cream hit Size of foam that hitting Columbia is 600 times bigger

14. 1.67" 0" ane.67" Recommend Immediate Visual Inspection of Columbia Recommend Immediate Visual Inspection of Columbia Sample damage from a very small-scale "dime size" foam hit 1.25" 0" Size of cream that hit Columbia is 600 times bigger 1.25"

15. 1.67" 0" 1.67" 1.25" 0" i.25"

16. Recommend Immediate Visual Inspection of Columbia Recommend Immediate Visual Inspection of Columbia Sample harm from a very small "dime size" foam hitting Size of foam that hit Columbia is 600 times bigger

17. Need to Inspect Columbia! The Crater software can non predict damage to Columbia The foam slice that hit Columbia was 600 times bigger than the cream hits used to calibrate Crater.

18. one.67" 0" 1.67" Demand to Inspect Columbia! The Crater software can not predict impairment to Columbia i.25" 0" one.25" The foam slice that striking Columbia was 600 times bigger than the foam hits used to calibrate Crater.

19. Sample of a screen on a groundwork

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