Abstract
A 3-D finite-element model was used to simulate the severe and localized thermal/pressure transients and the resulting stresses experienced by a rifled ceramic-barrel with a steel outer-liner; the focus of the simulations was on the influence of non-traditional rifling geometries on the thermoelastic- and pressure-stresses generated during a single firing event. In order to minimize computational requirements, a twisted segment of the barrel length based on rotational symmetry was used. Using this simplification, the model utilized uniform heating and pressure across the ID surface via a time-dependent convective coefficient and pressure generated by the propellant gasses. Results indicated that the unique rifling geometries had only a limited influence on the maximum circumferential (hoop) stresses and temperatures when compared with more traditional rifling configurations because of the compressive thermal stresses developed at the heated (and rifled) surface.
| Original language | English (US) |
|---|---|
| Title of host publication | 2007 Proceedings of the ASME Pressure Vessels and Piping Conference - Design and Analysis |
| Pages | 519-528 |
| Number of pages | 10 |
| Volume | 3 |
| DOIs | |
| State | Published - 2008 |
| Event | 2007 ASME Pressure Vessels and Piping Conference, PVP 2007 - San Antonio, TX, United States Duration: Jul 22 2007 → Jul 26 2007 |
Other
| Other | 2007 ASME Pressure Vessels and Piping Conference, PVP 2007 |
|---|---|
| Country | United States |
| City | San Antonio, TX |
| Period | 7/22/07 → 7/26/07 |
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All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Industrial and Manufacturing Engineering
Cite this
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Finite-element simulations and probabilistic fracture assessments of the response of alternate rifling geometries. / Segall, Albert Eliot; Carter, R.
2007 Proceedings of the ASME Pressure Vessels and Piping Conference - Design and Analysis. Vol. 3 2008. p. 519-528.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Finite-element simulations and probabilistic fracture assessments of the response of alternate rifling geometries
AU - Segall, Albert Eliot
AU - Carter, R.
PY - 2008
Y1 - 2008
N2 - A 3-D finite-element model was used to simulate the severe and localized thermal/pressure transients and the resulting stresses experienced by a rifled ceramic-barrel with a steel outer-liner; the focus of the simulations was on the influence of non-traditional rifling geometries on the thermoelastic- and pressure-stresses generated during a single firing event. In order to minimize computational requirements, a twisted segment of the barrel length based on rotational symmetry was used. Using this simplification, the model utilized uniform heating and pressure across the ID surface via a time-dependent convective coefficient and pressure generated by the propellant gasses. Results indicated that the unique rifling geometries had only a limited influence on the maximum circumferential (hoop) stresses and temperatures when compared with more traditional rifling configurations because of the compressive thermal stresses developed at the heated (and rifled) surface.
AB - A 3-D finite-element model was used to simulate the severe and localized thermal/pressure transients and the resulting stresses experienced by a rifled ceramic-barrel with a steel outer-liner; the focus of the simulations was on the influence of non-traditional rifling geometries on the thermoelastic- and pressure-stresses generated during a single firing event. In order to minimize computational requirements, a twisted segment of the barrel length based on rotational symmetry was used. Using this simplification, the model utilized uniform heating and pressure across the ID surface via a time-dependent convective coefficient and pressure generated by the propellant gasses. Results indicated that the unique rifling geometries had only a limited influence on the maximum circumferential (hoop) stresses and temperatures when compared with more traditional rifling configurations because of the compressive thermal stresses developed at the heated (and rifled) surface.
UR - http://www.scopus.com/inward/record.url?scp=43349100205&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=43349100205&partnerID=8YFLogxK
U2 - 10.1115/PVP2007-26081
DO - 10.1115/PVP2007-26081
M3 - Conference contribution
SN - 0791842819
SN - 9780791842812
VL - 3
SP - 519
EP - 528
BT - 2007 Proceedings of the ASME Pressure Vessels and Piping Conference - Design and Analysis
ER -