From shock response spectrum to temporal moments and vice-versa Metadata
Metadata describes a digital item, providing (if known) such information as creator, publisher, contents, size, relationship to other resources, and more. Metadata may also contain "preservation" components that help us to maintain the integrity of digital files over time.
- Main Title From shock response spectrum to temporal moments and vice-versa
Author: Hemez, F. M. (François M.)Creator Type: Personal
Author: Doebling, S. W. (Scott W.)Creator Type: Personal
Sponsor: United States. Department of Energy.Contributor Type: Organization
Name: Los Alamos National LaboratoryPlace of Publication: United States
- Creation: 2002-01-01
- Content Description: Temporal momerils have been used in engineering mechanics to condense the information contained in the shock response spectrum into a few scalar quantities. This paper presents an application of temporal moments to the propagation of an explosive-driven shock wave through an assembly of metallic parts. For this particular application, it is shown that temporal moments characterize the response of the system better than other features traditionally used in the analysis of nonlinear, transient events, such as the peak response or 10% duration of event. The inverse problem is also illustrated: the original, time-domain signals and their shock response spectra can be reconstructed from the temporal moments. This property makes temporal moments features of choice for the analysis of experimental data or the development of numerical models because they are low-dimensional quantities; they capture transient dynamics well; and they can be used to re-generate the original time signals.
- Physical Description: 12 p.
- Keyword: Spectra
- Keyword: Scalars
- STI Subject Categories: 42 Engineering
- Keyword: Engineering
- Keyword: Transients
- Keyword: Shock Waves
- Keyword: Signals
- Conference: Submitted to: Proceedings of the 21st SEM International Modal Analysis Conference (IMAC-XXI), Kissimmee, Florida, February 3-6, 2003
Name: Office of Scientific & Technical Information Technical ReportsCode: OSTI
Name: UNT Libraries Government Documents DepartmentCode: UNTGD
- Report No.: LA-UR-02-6790
- Grant Number: none
- Office of Scientific & Technical Information Report Number: 976416
- Archival Resource Key: ark:/67531/metadc930956