| Title: |
Multiaxial fatigue damage evaluation of bonded repair and efficient performance evaluation of a composite wing section |
| Authors: |
Lua, Jim Y.; Cui, Xiaodong; Karuppiah, Anand Vijay; Kariyawasam, Supun; Saathoff, Caleb |
| Publisher Information: |
Vertical Flight Society |
| Publication Year: |
2023 |
| Collection: |
Wichita State University: SOAR (Shocker Open Access Repository) |
| Subject Terms: |
Computational efficiency; Damage detection; Fatigue damage; Structure (composition); Wings |
| Description: |
Click on the DOI link to access this conference paper (may not be free). ; Presented at the 79th Vertical Flight Society Annual Forum and Technology Display, FORUM 2023, 16-18 May 2023 ; Technology gaps exist for design and certification of bonded repair of large composite structures under multiaxial loading. They are 1) consideration of delamination failure without including the matrix cracking-induced stress concentration at a ply interface; 2) use of test data from a simple geometry for the failure prediction of a complex repaired configuration with a multiaxial stress state and spatial variation of the local stress ratio; 3) pre-assumed failure modes without including the multiaxial stress state-driven damage initiation and progression; and 4) lack of a rational modeling approach for the damage evaluation of a full-scale structure to balance the computational efficiency and solution accuracy. Our primary goal of this study is to extend our modeling capability for a bonded composite structure subjected to multiaxial loading and to demonstrate a global-local modeling capability for the high-fidelity damage evaluation at a critical location of a full-scale composite wing section. Multiaxial tests for a scarf repaired component are performed via the bi-axial cruciform apparatus while a capability demonstration is conducted using the strain survey test of a full-scale wing section via the developed test rig. After verification of the global response prediction, the developed global-local modeling strategy is used to evaluate the damage progression at a critical location with a detected initial defect. ; N68335-19-C-0613; Naval Air Warfare Center, Aircraft Division, NAWCAD ; This work is funded by Naval Air Warfare Center, Aircraft Division under the Contract of N68335-19-C-0613. |
| Document Type: |
conference object |
| Language: |
English |
| Relation: |
FORUM 2023 - Vertical Flight Society 79th Annual Forum and Technology Display; https://soar.wichita.edu/handle/10057/25690 |
| DOI: |
10.4050/F-0079-2023-18162 |
| Availability: |
https://doi.org/10.4050/F-0079-2023-18162; https://soar.wichita.edu/handle/10057/25690 |
| Rights: |
© Copyright 2023 by Vertical Flight Society |
| Accession Number: |
edsbas.A5457C86 |
| Database: |
BASE |