3. 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 Research data
- Crater overpredicted penetration of tile coating
significantly
Initial penetration to described by normal velocity
Varies with volume/mass of projectile (e.g. 200 ft/sec for
3 cu.In)
Significant 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 can cause
significant damage
Minor variations in total energy (above penetration level)
can cause significant tile damage
- Flight condition is significantly outside of test database
Volume of ramp is 1920cu in vs 3 cu in for test
C
4. •The existing SOFI on tile test data used to create Crater
was reviewed along with STS-87 Southwest Research data
- Crater overpredicted penetration of tile coating
significantly
Initial penetration to described by normal velocity
Varies with volume/mass of projectile (e.g. 200 ft/sec for
3 cu.In)
Significant 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 can cause
significant damage
Minor variations in total energy (above penetration level)
can cause significant tile damage
- Flight condition is significantly outside of test database
Volume of ramp is 1920cu in vs 3 cu in for test
Review of Test Data Indicates Conservatism for Tile
Penetration
Title of the slide
Very big bullet
Very big dash
Medium sized diamond
Tiny square bullet
Parenthesis
Levels of Hierarchy
1
2
3
4
5
6
C
http://spaceflight.nasa.gov/shuttle/archives/sts-
107/investigation/CAIB_medres_full.pdf
5. 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 Research data
- Crater overpredicted penetration of tile coating
significantly
Initial penetration to described by normal velocity
Varies with volume/mass of projectile (e.g. 200 ft/sec for
3 cu.In)
Significant 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 can cause
significant damage
Minor variations in total energy (above penetration level)
can cause significant tile damage
- Flight condition is significantly outside of test database
Volume of ramp is 1920cu in vs 3 cu in for test
C
6. 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 Research data
- Crater overpredicted penetration of tile coating
significantly
Initial penetration to described by normal velocity
Varies with volume/mass of projectile (e.g. 200 ft/sec for
3 cu.In)
Significant 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 can cause
significant damage
Minor variations in total energy (above penetration level)
can cause significant tile damage
- Flight condition is significantly outside of test database
Volume of ramp is 1920cu in vs 3 cu in for test
C
8. 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 Research data
- Crater overpredicted penetration of tile coating
significantly
Initial penetration to described by normal velocity
Varies with volume/mass of projectile (e.g. 200 ft/sec for
3 cu.In)
Significant 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 can cause
significant damage
Minor variations in total energy (above penetration level)
can cause significant tile damage
- Flight condition is significantly outside of test database
Volume of ramp is 1920cu in vs 3 cu in for test
Orphans
C
37. Headline
Sans Serif is good for headlines
If you are using too much text (which is
absolutely avoidable), use a Serif Font
F
38. Headline
Sans Serif is good for headlines
If you are using too much text (which is
absolutely avoidable), use a Serif Font
Arial Bold
Times New Roman
F
70. Arial looks bigger than
Times New Roman
even for the same font
size (64)
71. Arial looks bigger than
Times New Roman even
for the same font size (64)
F
72. Arial looks bigger than
Times New Roman
even for the same font
size (64)
Arial looks bigger than
Times New Roman even
for the same font size (64)
1
2
3
4
1
2
3
73. Arial looks
much bigger
than Times
New Roman
even if the
font size is the
same
Arial looks
much bigger
than Times
New Roman
even if the font
size is the same
80. Judd, Deane B.; Wyszecki, Günter (1975). Color in Business, Science and Industry. Wiley Series in
Pure and Applied Optics (3rd ed.). New York: Wiley-Interscience. p. 388. ISBN 0471452122.
10
million
C
101. Thanks
1. NASA: The Accident’s Organizational Causes
2. Edward Tufte: The Cognitive Style of PowerPoint
3. New York Times
4. Pittsburg Post Gazette
4. United States Central Command / National Security Archive