Development of New Sensors for Monitoring Damage in Composite Aeronautical Structures -- Design, Manufacturing, Modeling and Testing (T266)
Abstract
The main objective consists of investigating and providing theories and methods for the design, manufacturing, modelling and testing of advanced 3D printed sensors for monitoring aeronautical composite structures. The task also relates to the development of new SHM systems, which can detect and predict residual life and-or stiffness of composite structures. Thus, new computational and analytical models as well as experimental analyses will be proposed to create the basis for the development of new and revolutionary onboard health monitoring and embedded non-destructive evaluation (NDE) based on (but not limited to) vibration tests (VBM). Regarding experimental analyses, quasi-static and vibration tests will be carried out not only to identify the parameters of the material model, but also to validate the proposed multiscale approach. The identification of model parameters will be carried out by using direct and-or inverse analysis, and the validation process of the models will be performed by using digital image correlation technique. Therefore, new protocols to test composite materials will be also provided. Regarding SHM systems, conceptual tests will be conducted using damaged composite structures with sensors (e.g., commercial piezoelectric devices) to evaluate the potentialities and limitations of the proposed analytical-computational-experimental methodology. In addition, non-commercial piezoelectric sensing devices with the potential for application in SHM will be investigated, which can contribute to a new type of 3D printed sensors (embedded or not in the composite structure) and could further enhance the suitability of VBM for damage detection and quantification. The development of a new generation of sensing devices is strategic since the envisioned application of the new sensors in SHM of structures can lead to the safer design of composite structures. Therefore, the basis to develop a new and revolutionary SHM system able to provide not only diagnosis and prognosis for composite structures, but also to help a life extension planning for composite structures.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 06, 2025
- Source ID
- FA95502410247
Entities
People
- Volnei Tita
Organizations
- Air Force Office of Scientific Research
- Fundação de Apoio à Universidade de São Paulo
- United States Air Force