Dynamic Instability in Shallow Arches under Transversal Forces and Plane Frames with Semirigid Connections
Joint Authors
Greco, Marcelo
Fernandes, William Luiz
Vasconcellos, Daniel Boy
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-28
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Structural engineering demands increasingly lighter systems, which can cause instability problems and compromise performance.
A high slenderness index of a structural element makes it susceptible to instability.
It is important to understand the problem, the limits of stability, and its postcritical behavior.
An example that can occur in collapsed arches under a cross load is the dynamic snap-through behavior, where the structure in a given equilibrium condition jumps to a new remote equilibrium setting, causing usually sudden curvature.
The semirigid connections are a source of physical nonlinearity and can influence the overall stability of the structural system, in addition to the distribution of stresses in the same system.
Conventional approaches make use of static considerations.
However, instability problems are inherently evolutionary processes, so a transient analysis is necessary for a complete description of structural behavior.
The present work evaluates the geometrically nonlinear dynamic behavior of collapsed arches subjected to transverse force and plane frames with semirigid connections.
The time domain responses, via Newmark's Method and positional formulation of the Finite Element Method, were obtained in terms of displacements, velocities, acceleration, and phase diagrams.
American Psychological Association (APA)
Fernandes, William Luiz& Vasconcellos, Daniel Boy& Greco, Marcelo. 2018. Dynamic Instability in Shallow Arches under Transversal Forces and Plane Frames with Semirigid Connections. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-14.
https://search.emarefa.net/detail/BIM-1205987
Modern Language Association (MLA)
Fernandes, William Luiz…[et al.]. Dynamic Instability in Shallow Arches under Transversal Forces and Plane Frames with Semirigid Connections. Mathematical Problems in Engineering No. 2018 (2018), pp.1-14.
https://search.emarefa.net/detail/BIM-1205987
American Medical Association (AMA)
Fernandes, William Luiz& Vasconcellos, Daniel Boy& Greco, Marcelo. Dynamic Instability in Shallow Arches under Transversal Forces and Plane Frames with Semirigid Connections. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-14.
https://search.emarefa.net/detail/BIM-1205987
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1205987