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    Surface Strain Measurement for Non-Intrusive Internal Pressure Evaluation of a Cannon

    Source: Journal of Pressure Vessel Technology:;2024:;volume( 146 ):;issue: 006::page 61506-1
    Author:
    Rausch, Brennan
    ,
    de Clerck, Albrey
    ,
    Kang, Yuhong
    ,
    Mao, Shuo
    ,
    Jones, Noah
    ,
    Ruan, Hang
    ,
    Ng, Wing F.
    DOI: 10.1115/1.4066743
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Recent cutting-edge designs for gun barrels, projectiles, and propellants require testing, such as measuring the internal pressure during firing. However, there are concerns with the current drilling method to mount pressure transducers near the breech and chamber of the gun barrel where pressure is highest. To address this challenge, the team hereby presents an alternative, nonintrusive strain measurement method. This method focuses on determining the feasibility and accuracy of relating tangential strain along the sidewall of a gun barrel to the drastic internal pressure rise created during combustion. A transient structural, numerical model of a 155 mm gun barrel was created using ansys. The pressure was derived using the outline in Interior Ballistics of High Velocity Guns, version 2, and the model was validated using published experimental tangential strain testing data from a gun of the same caliber. The model was then used to demonstrate the ideal location for strain measurement along the sidewall of the chamber. Furthermore, three different pressure ranges were simulated in the model. The behavior of the tangential strain in each case indicates a similar trend to the internal pressure rise and oscillation due to a dominant frequency of the barrel. A method to predict internal pressure from external tangential strain was developed. The internal pressure predicted is within 4% of the pressure applied in the model. In the sensitivity study, the thickness and elastic modulus of the gun barrel were found to be the primary factors affecting tangential strain. Overall, this work helps to understand tangential strain behavior on the sidewall of a large-caliber gun barrel and lays the ground for an accurate prediction of internal pressure from external tangential strain.
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      Surface Strain Measurement for Non-Intrusive Internal Pressure Evaluation of a Cannon

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    contributor authorRausch, Brennan
    contributor authorde Clerck, Albrey
    contributor authorKang, Yuhong
    contributor authorMao, Shuo
    contributor authorJones, Noah
    contributor authorRuan, Hang
    contributor authorNg, Wing F.
    date accessioned2025-04-21T10:26:32Z
    date available2025-04-21T10:26:32Z
    date copyright10/29/2024 12:00:00 AM
    date issued2024
    identifier issn0094-9930
    identifier otherpvt_146_06_061506.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4306205
    description abstractRecent cutting-edge designs for gun barrels, projectiles, and propellants require testing, such as measuring the internal pressure during firing. However, there are concerns with the current drilling method to mount pressure transducers near the breech and chamber of the gun barrel where pressure is highest. To address this challenge, the team hereby presents an alternative, nonintrusive strain measurement method. This method focuses on determining the feasibility and accuracy of relating tangential strain along the sidewall of a gun barrel to the drastic internal pressure rise created during combustion. A transient structural, numerical model of a 155 mm gun barrel was created using ansys. The pressure was derived using the outline in Interior Ballistics of High Velocity Guns, version 2, and the model was validated using published experimental tangential strain testing data from a gun of the same caliber. The model was then used to demonstrate the ideal location for strain measurement along the sidewall of the chamber. Furthermore, three different pressure ranges were simulated in the model. The behavior of the tangential strain in each case indicates a similar trend to the internal pressure rise and oscillation due to a dominant frequency of the barrel. A method to predict internal pressure from external tangential strain was developed. The internal pressure predicted is within 4% of the pressure applied in the model. In the sensitivity study, the thickness and elastic modulus of the gun barrel were found to be the primary factors affecting tangential strain. Overall, this work helps to understand tangential strain behavior on the sidewall of a large-caliber gun barrel and lays the ground for an accurate prediction of internal pressure from external tangential strain.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleSurface Strain Measurement for Non-Intrusive Internal Pressure Evaluation of a Cannon
    typeJournal Paper
    journal volume146
    journal issue6
    journal titleJournal of Pressure Vessel Technology
    identifier doi10.1115/1.4066743
    journal fristpage61506-1
    journal lastpage61506-10
    page10
    treeJournal of Pressure Vessel Technology:;2024:;volume( 146 ):;issue: 006
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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