Shakedown analysis of trusses under cyclic thermal load with temperature-dependent yield stress
Journal
Structural Engineering and Mechanics
Journal Volume
78
Journal Issue
6
Pages
681-689
Date Issued
2021
Author(s)
Abstract
The paper aims to revisit shakedown analysis involving temperature-dependent yield stress. Formulations and numerical implementations are focused on truss structures subjected to cyclic thermal and constant mechanical loads. In particular, a systematic approach based on the duality relationship of l∞-norm and l1-norm is established to state the dual formulations for static and kinematic shakedown analysis of truss structures. Illustrative examples are involved statically indeterminate three-bar and five-bar trusses, respectively. Numerical effort is made to acquire shakedown limit temperature by using the linprog function provided by MATLAB. Furthermore, the finite-element analysis using ABAQUS is also performed for rigorous comparisons. ? 2021 Techno-Press, Ltd.
Subjects
Cyclic thermal loading
H?lder inequality
L1-norm
L∞-norm
Shakedown analysis
Temperature-dependent yield stress
Truss structures
ABAQUS
Trusses
Cyclic thermal loads
Dual formulations
Kinematic shakedown analysis
Mechanical loads
Numerical implementation
Shakedown limit
Temperature dependent
Yield stress
SDGs
Type
journal article