Systems and methods for reducing munition sensitivity
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F42B-039/20
F42B-005/28
출원번호
US-0204837
(2016-07-07)
등록번호
US-10113846
(2018-10-30)
발명자
/ 주소
Pitre, Sylvain
Goulet, André
출원인 / 주소
General Dynamics Ordnance and Tactical Systems-Canada, Inc.
대리인 / 주소
LKGlobal
인용정보
피인용 횟수 :
0인용 특허 :
39
초록▼
A container (e.g., an ammunition casing, a rocket housing, or the like) includes a body structure having a wall defining a cavity configured to accept an energetic material, the body structure having a central region situated longitudinally between a first side region and a second side region, where
A container (e.g., an ammunition casing, a rocket housing, or the like) includes a body structure having a wall defining a cavity configured to accept an energetic material, the body structure having a central region situated longitudinally between a first side region and a second side region, wherein the wall within the central region has a thickness that is less than the thickness of the wall within first region and either less than or equal to the thickness within the second side region. A strength reduction pattern is formed at least partially within the central region of the wall such that the strength reduction pattern provides a preferred rupture path when the energetic material is subjected to a predetermined external stimulus.
대표청구항▼
1. A container comprising: a body structure including a wall defining a cavity configured to accept an energetic material, the body structure having a central region situated on a longitudinal axis defined between a first side region and a second side region, wherein the wall within the central regi
1. A container comprising: a body structure including a wall defining a cavity configured to accept an energetic material, the body structure having a central region situated on a longitudinal axis defined between a first side region and a second side region, wherein the wall within the central region has a thickness that is less than a thickness of the wall within the first region and either less or equal to a thickness of the wall within the second side region; anda strength reduction pattern formed at least partially within the central region of the wall such that the strength reduction pattern provides a preferred rupture path when the energetic material is subjected to a predetermined external stimulus, wherein the preferred rupture path diverges at least in part from the longitudinal axis, and wherein the strength reduction pattern is selected to produce a predefined number of fragments when the energetic material is subjected to a predetermined external stimulus. 2. The container of claim 1, wherein the wall within the central region has a thickness that is reduced from 25% to 45% and that is approximately 45% to 55% of the thickness of the wall in the first side region. 3. The container of claim 1, wherein the strength reduction pattern includes a pattern of material having a reduced tensile strength. 4. The container of claim 3, wherein the strength reduction pattern is formed via localized mechanical, chemical, thermal processes or a combination thereof. 5. The container of claim 1, wherein the body structure has a shape selected from the group consisting of cylindrical, conical, polyhedral, and ammunition casing-shaped. 6. The container of claim 1, wherein the strength reduction pattern is selected such that the predefined number of fragments have predetermined masses. 7. The container of claim 1, wherein the strength reduction pattern is selected such that the predefined number of fragments have predetermined geometries. 8. The container of claim 1, wherein the strength reduction pattern has a shape selected from the group consisting of C-shaped, L-shaped, I-shaped, J-shaped, S-shaped, T-shaped, U-shaped, V-shaped, W-shaped, X-shaped, heliocoidal, elliptical, and lambda-shaped. 9. A method of manufacturing a container, comprising: forming a body structure that includes a wall defining a cavity configured to accept an energetic material such that the body structure has a central region situated on a longitudinal axis defined between a first side region and a second side region, wherein the wall within the central region has a thickness that is less than a thickness of the wall within the first region and either less or equal to a thickness of the wall within the second side region; andforming a strength reduction pattern at least partially within the central region of the wall such that the strength reduction pattern provides a preferred rupture path when the energetic material is subjected to a predetermined external stimulus, wherein the preferred rupture path diverges at least in part from the longitudinal axis, and wherein the strength reduction pattern is selected to produce a predefined number of fragments when the energetic material is subjected to a predetermined external stimulus. 10. The method of claim 9, wherein the wall within the central region is formed with a thickness that is reduced from 25% to 45% and that is approximately 45% to 55% of the thickness of the wall in the first side region. 11. The method of claim 9, wherein the strength reduction pattern includes a pattern of material having a reduced tensile strength. 12. The method of claim 9, wherein the strength reduction pattern is formed via localized mechanical, chemical, thermal processes or a combination thereof. 13. The method of claim 9, wherein the body structure has a shape selected from the group consisting of cylindrical, conical, polyhedral, and ammunition casing-shaped. 14. The method of claim 9, wherein the strength reduction pattern is selected such that the predefined number of fragments have predetermined masses. 15. The method of claim 9, wherein the strength reduction pattern is selected such that the predefined number of fragments have predetermined geometries. 16. The method of claim 9, wherein the strength reduction pattern has a shape selected from the group consisting of C-shaped, L-shaped, I-shaped, J-shaped, S-shaped, T-shaped, U-shaped, V-shaped, W-shaped, X-shaped, heliocoidal, elliptical, and lambda-shaped. 17. A container comprising: a body structure including a wall defining a cavity configured to accept an energetic material, the body structure having a central region situated on a longitudinal axis defined between a first side region and a second side region, wherein the wall within the central region has a thickness that is less than a thickness of the wall within the first region and either less or equal to a thickness of the wall within the second side region; anda strength reduction pattern formed at least partially within the central region of the wall such that the strength reduction pattern provides a preferred rupture path when the energetic material is subjected to an undesired external stimulus that is not associated with the use of the container and the energetic material in a weapon system, wherein the preferred rupture path diverges at least in part from the longitudinal axis.
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