Finite-element simulations and probabilistic fracture assessments of the response of alternate rifling geometries

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 languageEnglish (US)
Title of host publication2007 Proceedings of the ASME Pressure Vessels and Piping Conference - Design and Analysis
Pages519-528
Number of pages10
Volume3
DOIs
StatePublished - 2008
Event2007 ASME Pressure Vessels and Piping Conference, PVP 2007 - San Antonio, TX, United States
Duration: Jul 22 2007Jul 26 2007

Other

Other2007 ASME Pressure Vessels and Piping Conference, PVP 2007
CountryUnited States
CitySan Antonio, TX
Period7/22/077/26/07

Fingerprint

Geometry
Propellants
Compressive stress
Thermal stress
Heating
Steel
Temperature
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

Segall, A. E., & Carter, R. (2008). Finite-element simulations and probabilistic fracture assessments of the response of alternate rifling geometries. In 2007 Proceedings of the ASME Pressure Vessels and Piping Conference - Design and Analysis (Vol. 3, pp. 519-528) https://doi.org/10.1115/PVP2007-26081
Segall, Albert Eliot ; Carter, R. / Finite-element simulations and probabilistic fracture assessments of the response of alternate rifling geometries. 2007 Proceedings of the ASME Pressure Vessels and Piping Conference - Design and Analysis. Vol. 3 2008. pp. 519-528
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Segall, AE & Carter, R 2008, Finite-element simulations and probabilistic fracture assessments of the response of alternate rifling geometries. in 2007 Proceedings of the ASME Pressure Vessels and Piping Conference - Design and Analysis. vol. 3, pp. 519-528, 2007 ASME Pressure Vessels and Piping Conference, PVP 2007, San Antonio, TX, United States, 7/22/07. https://doi.org/10.1115/PVP2007-26081

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 proceedingConference contribution

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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.

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Segall AE, Carter R. Finite-element simulations and probabilistic fracture assessments of the response of alternate rifling geometries. In 2007 Proceedings of the ASME Pressure Vessels and Piping Conference - Design and Analysis. Vol. 3. 2008. p. 519-528 https://doi.org/10.1115/PVP2007-26081