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Dynamic Deformation of Clamped Circular Plates Subjected to Confined Blast Loading.
- Source :
-
Strain . Dec2016, Vol. 52 Issue 6, p478-491. 14p. 3 Color Photographs, 1 Black and White Photograph, 3 Diagrams, 5 Charts, 11 Graphs. - Publication Year :
- 2016
-
Abstract
- In this paper, the dynamic deformation of thin metal circular plates subjected to confined blast loading was studied using high-speed three-dimensional Digital Image Correlation (3D DIC). A small-scale confined cylinder vessel was designed for applying blast loading, in which an explosive charge was ignited to generate blast loading acting on a thin metal circular plate clamped on the end of the vessel by a cover flange. The images of the metal plates during the dynamic response were recorded by two high-speed cameras. The 3D transient displacement fields, velocity fields, strain fields and residual deformation profiles were calculated by using 3D DIC. Some feature deformation parameters including maximum out-of-plane displacement, final deflection, maximum principal strain and residual principal strain were extracted, and the result was in good agreement with that simulated by AUTODYN. A dimensionless displacement was introduced to analyse the effects of plate thickness, material types and charge mass on the deflection of metal plates. DIC is also proven to be a powerful technique to measure dynamic deformation under blast loading. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00392103
- Volume :
- 52
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Strain
- Publication Type :
- Academic Journal
- Accession number :
- 119575935
- Full Text :
- https://doi.org/10.1111/str.12190