Interaction of shock waves in cement mortar plate investigated by the digital speckle correlation method

被引：2

作者：

Li Xu-Dong ^{[1
,2
]}

Liu Kai-Xin ^{[1
,2
]}

Zhang Guang-Sheng ^{[3
]}

Wen Shang-Gang ^{[3
]}

Tan Fu-Li ^{[3
]}

机构：

[1] Peking Univ, Coll Engn, LTCS, Beijing 100871, Peoples R China

[2] Peking Univ, Coll Engn, Dept Mech & Aerosp Engn, Beijing 100871, Peoples R China

[3] China Acad Engn Phys, Inst Fluid Phys, Mianyang 621900, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2008年 / 25卷 / 08期

关键词：

D O I：

10.1088/0256-307X/25/8/063

中图分类号：

O4 [物理学];

学科分类号：

0702 [物理学];

摘要：

Interaction of shock waves in cement mortar plate is studied by digital speckle correlation method and digital high-speed photography technique. When the plates were destroyed by two detonators exploding at the same time, variation of shock wave field is obtained. Experimental results show that the interaction of shock waves will result in a nonlinear huge increase of local normal strain, leading to large deformation and serious destruction. However, the occurrence of this strongly nonlinear phenomenon sensitively depends on the interval between detonators, and it will only appear when the interval is smaller than the diameter of the region where shock waves exist.

引用

页码：2965 / 2968

页数：4

共 9 条

[1]

DIGITAL IMAGE CORRELATION USING NEWTON-RAPHSON METHOD OF PARTIAL-DIFFERENTIAL CORRECTION [J].