3.1
Acronyms, Abbreviations, and Symbols
: 1=greater than √: 1=square root ®: 1=registered trademark
| 1 | |
|---|---|
| ΔKth | cyclic threshold stress intensity range |
| ω | maximum operating rotational speed |
| > | greater than |
| √ | square root |
| ® | registered trademark |
| AIA | Aerospace Industries Association |
| AIAA | American Institute of Aeronautics and Astronautics |
| Al | aluminum |
| ANSI | American National Standards Institute |
| API | American Petroleum Institute |
| ASME | The American Society of Mechanical Engineers |
| ASTM | ASTM International (formerly American Society of Testing and Materials) |
| atm | atmosphere |
| BBA | building block approach |
| BPVC | Boiler and Pressure Vessel Code |
| cm | centimeter(s) |
| CMH | Composite Materials Handbook |
| COPV | composite overwrapped pressure vessel |
| cp-Ti | commercially pure titanium |
| CRES | corrosion resistant (steel) |
| DLL | design limit load |
| DOT | Department of Transportation |
| DTA | damage threat assessment |
| DUL | design ultimate load |
| EAC | environmentally assisted cracking |
| ECF | environmental correction factor |
| EVA | extravehicular activity |
| Fsu | ultimate shear strength |
| Ftu | ultimate tensile strength |
| Fty | yield tensile strength |
| FAA | Federal Aviation Administration |
| FCP | Fracture Control Plan |
| FCR | Fracture Control Requirement |
| FCSR | Fracture Control Summary Report |
| ft | foot (feet) |
| ft- lb | foot-pound(s) |
| FOD | foreign object debris |
| HCF | high-cycle fatigue |
| HDBK | handbook |
| hr | hour(s) |
| IDMP | Impact Damage Mitigation Plan |
| in | inch |
| J | joule(s) |
| Jc | critical J-integral |
| JIc | plane strain J-integral |
| JSC | Johnson Space Center |
| K | stress intensity factor |
| Kc | plane stress fracture toughness |
| KEAC | stress intensity factor threshold for EAC in a specific thickness |
| KIc | plane strain fracture toughness |
NASA-STD-5019A w/CHANGE 4
NASGRO®: effective fracture toughness=fracture mechanics and fatigue crack growth analysis software
| effective fracture toughness | |
|---|---|
| KIEAC | stress intensity factor threshold for plane strain environmentally assisted cracking |
| KISCC | stress intensity factor threshold for plane strain stress corrosion cracking |
| KJIc | stress intensity factor determined from the plane strain J-integral fracture toughness |
| KSLC | stress intensity factor threshold for sustained load cracking |
| kip | kilo-pound |
| kPa | kilo-pascal |
| ksi | kip(s) per square inch |
| LBB | leak-before-burst |
| LEF | load enhancement factor |
| LEFM | linear-elastic fracture mechanics |
| m | meter(s) |
| mA | milliampere |
| MDCP | Mechanical Damage Control Plan |
| MDP | maximum design pressure |
| MEOP | maximum expected operating pressure |
| MIL | military |
| mm | millimeter |
| MMOD | micro-meteoroid and orbital debris |
| MPa | megapascal(s) |
| MSFC | Marshall Space Flight Center |
| MUA | Materials Usage Agreement |
| NAS | National Aerospace Standard |
| NASA | National Aeronautics and Space Administration |
| NASGRO® | fracture mechanics and fatigue crack growth analysis software |
| NDE | non-destructive evaluation |
| NDI | non-destructive inspection |
| NDT | non-destructive testing |
| NFC | non-fracture critical |
| NHLBB | non-hazardous-leak-before-burst |
| NPR | NASA Procedural Requirements |
| PRC | process specification |
| psi | pound(s) per square inch |
| psia | pound(s) per square inch absolute |
| RTD | residual threat determination |
| RFCB | Responsible Fracture Control Board |
| RQMT | requirement |
| S | standard |
| SAE | Society of Automotive Engineers |
| SLC | sustained load cracking |
| SPEC | specification |
| STA | solution treated and aged |
NASA-STD-5019A w/CHANGE 4
: standard=maximum operating rotational speed