公开(公告)号：US20230032125A1

公开(公告)日：2023-02-02

申请号：US17876231

申请日：2022-07-28

申请人： The United States of America, as represented by the Secretary of the Navy

发明人： William McNicholas ,  Joshua E. Gwaltney ,  Eric Scheid ,  Matt E Cummings ,  Andrew Richard Davis

IPC分类号： F42B12/22

摘要： Provided is a frangible munitions device optimized for a dome and cylinder that yields fragments having shapes corresponding to a predetermined embossment pattern upon explosive rupture. The embossment pattern includes a first set of inner regular hexagonal embossments formed into the dome and cylinder that are aligned with the axis of the cylinder, and a second set of outer pre-deformed hexagonal shapes that distort to produce regular hexagonal shapes after drawing into the cylinder wall. The second set of shapes are separated by sharp transition regions. The shapes are embossed in a repeated pattern around the hollow cylinder and the dome top. The dome yields a plurality of fragments having shapes corresponding to the first set of inner regular hexagonal embossments upon explosive rupture, while the cylinder yields a plurality of fragments having shapes corresponding to the second set of outer pre-deformed hexagonal embossments upon explosive rupture.

公开(公告)号：US11725916B2

公开(公告)日：2023-08-15

申请号：US17876231

申请日：2022-07-28

申请人： The United States of America, as represented by the Secretary of the Navy

发明人： William McNicholas ,  Joshua E. Gwaltney ,  Eric Scheid ,  Matt E Cummings ,  Andrew Richard Davis

IPC分类号： F42B12/22 ,  F42B12/24 ,  F42B27/00

CPC分类号： F42B12/24 ,  F42B12/22 ,  F42B27/00

摘要： Provided is a frangible munitions device optimized for a dome and cylinder that yields fragments having shapes corresponding to a predetermined embossment pattern upon explosive rupture. The embossment pattern includes a first set of inner regular hexagonal embossments formed into the dome and cylinder that are aligned with the axis of the cylinder, and a second set of outer pre-deformed hexagonal shapes that distort to produce regular hexagonal shapes after drawing into the cylinder wall. The second set of shapes are separated by sharp transition regions. The shapes are embossed in a repeated pattern around the hollow cylinder and the dome top. The dome yields a plurality of fragments having shapes corresponding to the first set of inner regular hexagonal embossments upon explosive rupture, while the cylinder yields a plurality of fragments having shapes corresponding to the second set of outer pre-deformed hexagonal embossments upon explosive rupture.