Techno Press
You logged in as

Structural Engineering and Mechanics   Volume 4, Number 1, January 1996, pages 9-23
DOI: https://doi.org/10.12989/sem.1996.4.1.009
 
Dynamic response of elasto-plastic planar arches
Lee SL, Swaddiwudhipong S, Alwis WAM

 
Abstract     [Buy Article]
    The behaviour of elasto-plastic planar arches subjected to dynamic loads in presented. The governing equations are formulated through the dynamic equations and compatibility conditions. The latter is established by applying the generalized conjugate segment analogy. Bending moments at the nodes and axial forces in the members are considered as primary variables in the elastic regime. They are supplemented by the rotations at the nodes and dislocations in the elements when plastic hinges occur. Newmark-beta method is adopted in the time marching process. The interaction diagram of each element is treated as the yield surface for the element and the associated flow rule is enforced as plastic flow occurs. The method provides good prediction of dynamic response of elasto-plastic arches while requiring small core storage and short computer time.
 
Key Words
    arches, dynamic response, elasto-plastic, plastic hinge, yield surface
 
Address
Lee SL, NATL UNIV SINGAPORE,DEPT CIVIL ENGN,10 KENT RIDGE CRESCENT,SINGAPORE 0511,SINGAPORE
 

Techno-Press: Publishers of international journals and conference proceedings.       Copyright © 2019 Techno Press
P.O. Box 33, Yuseong, Daejeon 305-600 Korea, Tel: +82-42-828-7996, Fax : +82-42-828-7997, Email: technop@chol.com