| KEYWORD |
Nonclassical finite elment formulations and testing for Shape sensing and Structural Health Monitoring (SHM)
keywords DINAMICA STRUTTURALE
Reference persons MARCO DI SCIUVA
Research Groups 02-AESDO Group
Description Real-time reconstruction of structural displacements and stresses using measured strain data is a key technology for actuation and control of smart structures, as well as for structural health monitoring (SHM). Known as shape- and stress-sensing, this inverse problem is commonly formulated with the assumption that multiple strain sensors at various structural locations provide real-time strain measurements. Over the last three decades, extensive literature has been assembled on the subject matter, with an increasing number of different inverse methods proposed, each with its own strengths and weaknesses. One of such methods is the inverse finite element method (iFEM). Since its inception fifteen years ago, iFEM has seen a growing interest within the research community, focusing on the development of suitable beam, plate and shell inverse finite elements, and performing experimental studies in order to validate the strengths and weaknesses of the method (accuracy, robustness with respect to many parameters, such as the number of strain data, noise, uncertainty, failure of some strain gages, etc).
The main focus of this thesis is to review the theoretical foundation of iFEM, discuss several representative iFEM elements developed over the last decade, assess their performance and proceeed firther in developping new iFEM. In addition, several recent investigations using experimental laboratory results coupled with the iFEM methodology will be addressed.
Required skills Structural mechanics, composite plate theory, finite elelement method, Matlab
Notes It is possible to assign the work to 2 candidates.
Deadline 06/02/2019
PROPONI LA TUA CANDIDATURA