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Title: Nonlinear Dynamics of Multi-Joint Structures.


Abstract not provided.

Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
Report Number(s):
DOE Contract Number:
Resource Type:
Country of Publication:
United States

Citation Formats

Robertson, Brett Anthony. Nonlinear Dynamics of Multi-Joint Structures.. United States: N. p., 2017. Web.
Robertson, Brett Anthony. Nonlinear Dynamics of Multi-Joint Structures.. United States.
Robertson, Brett Anthony. Thu . "Nonlinear Dynamics of Multi-Joint Structures.". United States. doi:.
title = {Nonlinear Dynamics of Multi-Joint Structures.},
author = {Robertson, Brett Anthony},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jun 01 00:00:00 EDT 2017},
month = {Thu Jun 01 00:00:00 EDT 2017}

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  • A variety of strategies are developed for the practical solution of the fully nonlinear transient structural dynamics problem in a coarse-grained parallel-processing environment. Emphasis is placed on the analysis of three-dimensional framed structures subjected to arbitrary dynamic loading and, in particular, steel-building frames subject to earthquake loading. The parallel algorithms developed and investigated are intended to be appropriate for finite-element models that uses structural elements (e.g., beam-columns). Explicit algorithms require no simultaneous solution of equations, employ simple communication, and are thus efficient for parallel processing. Parallel analysis using the central difference algorithm is examined and implemented. The strict stability limitmore » on time step makes this method best suited for short-duration loadings. Implicit techniques require the solution of simultaneous equations, and several strategies are discussed to implement these algorithms in parallel. In addition, several partitioned time-integration algorithms are investigated that attempt to include the advantageous aspects of both explicit and implicit analysis. The parallel algorithms studied are amenable to several common parallel hardware architectures but are implemented on a bus architecture, with the number of processors in this work varying from one to four.« less
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