Quasi-static multiaxial testing of PBX 9501: Creep effects on Estane molecular weight
- Univ. of South Carolina, Columbia, SC (United States)
- Los Alamos National Lab., NM (United States)
- Brigham Young Univ., Provo, UT (United States)
High explosives (HE) can be subjected to low level loading due to weapon design. As with other materials, loads well below the elastic limit may still lead to material property changes over time. PBX 9501, a conventional high explosive, has been used in several system designs. To evaluate potential environmental aging effects on HE, it is necessary to characterize material-flow and mechanical-property changes occurring in PBX 9501. Low-level loads may bring about material changes if creep related phenomena, such as polymer disentanglement or uncrosslinking, occur in the material. Recently, several studies on HE have increased understanding of the effects of density and the relative percentage of constituents on materials properties, e.g. elastic modulus, ultimate strength, and strain at ultimate strength, at low strain rates ({approx} 10{sup {minus}3} to 10{sup {minus}1} s{sup {minus}1}). However, the authors are only beginning to understand the effects of quasi-static multiaxial loading on PBX 9501 and Estane molecular weight (MW) changes. The results of these experiments are presented in this report.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 334296
- Report Number(s):
- LA-UR-99-684; CONF-990404-; ON: DE99002195; TRN: AHC29914%%100
- Resource Relation:
- Conference: 22. aging, compatability and stockpile stewardship conference, Oak Ridge, TN (United States), 27-29 Apr 1999; Other Information: PBD: 1 Feb 1999
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of the stress/strain response of energetic materials as a function of strain rate and temperature: PBX 9501 and Mock 9501
Low strain rate compression measurements of PBXN-9, PBX 9501, and mock 9501