Abstract
This article presents an overview of recent progresses in experimental investigation and finite element analysis (FEA) of ratcheting behavior of pressurized piping. Ratcheting, namely the cyclic accumulation of plastic deformation, occurs when the structures are subjected to a primary load with a secondary cyclic load if the applied loads are high enough to make the structures yield. Typical piping structures including straight pipes, elbow pipes and piping joints have been investigated experimentally under mechanical or thermal cyclic loading. Finite element analyses with several well-developed constitutive models implemented in the commercial software ANSYS and ABAQUS have been conducted to simulate and predict the ratcheting behavior of pressurized piping. Based on such experimental and FEA research, ratcheting boundaries have been determined with the final aim of aiding the safety design and assessment of engineering piping structures. Some suggestions for structure ratcheting study are proposed.
| Original language | English |
|---|---|
| Pages (from-to) | 113-142 |
| Number of pages | 30 |
| Journal | International Journal of Pressure Vessels and Piping |
| Volume | 101 |
| DOIs | |
| State | Published - Jan 2013 |
| Externally published | Yes |
Funding
The authors gratefully acknowledge financial support for this work from the National High Technology Research and Development Program of China (863 Program 2009AA04Z403) , Ph.D. Programs Foundation of Ministry of Education of China (No. 20090032110016 ), and Natural Science Foundation of Hebei Province (No. E2011202044 ).
Keywords
- Constitutive model
- Cyclic loading
- Finite element analysis
- Pressure piping
- Ratcheting