| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Investigation on Springback Behavior of Multi-intersecting High Stiffened Structure in Die Forming |
| Author(s) |
Qiyuan He, Weidong Li, Min Wan, Cailing Li, Chao Cui |
| On-Site Speaker (Planned) |
Qiyuan He |
| Abstract Scope |
Multi-intersecting high stiffened structures have potential application in aerospace components, which are the main load-bearing structure of manned space station. However, its springback behavior is very complicated due to the interaction of multi-intersected ribbons and intersecting patterns during die forming. For the typical spherical shaped multi-intersecting stiffened structures, a new approach is proposed to quantize the influence on flexural neutral layer of multi-intersected ribs. The strain distribution along thickness at different radial positions of ribs is derived in theoretically. Reverse loading method is used to calculate springback radius of each position. Consequently, the final profile of the panel after springback is calculated by numerical integration. To verify the effectiveness of this method in predicting springback, finite element simulations based on ABAQUS software and experiments are both implemented. Comparison shows that the results are of good agreement, proving the method is capable of predicting springback of multi-intersecting stiffened structures. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |