#6849. K-BP neural network-based strain field inversion and load identification for CFRP

January 2027publication date
Proposal available till 27-05-2025
4 total number of authors per manuscript0 $

The title of the journal is available only for the authors who have already paid for
Journal’s subject area:
Instrumentation;
Electrical and Electronic Engineering;
Places in the authors’ list:
place 1place 2place 3place 4
FreeFreeFreeFree
2510 $1340 $1170 $1000 $
Contract №6849.1 Contract №6849.2 Contract №6849.3 Contract №6849.4
1 place - free (for sale)
2 place - free (for sale)
3 place - free (for sale)
4 place - free (for sale)

Abstract:
The strain information and loads conditions of composite wings are important basis for aircraft health evaluation. In this paper, firstly to demonstrate the accuracy of Fiber Bragg Grating (FBG) sensors and provide guidance for the following study, experiment is carried out to study the effect of the adhesive layer thickness on the strain transfer. Then finite element analysis software ABAQUS is applied to analyze the strain distribution, and the simulation data is used to fit the pseudo-Kriging interpolation model to invert the strain information of crucial points. Finally, K-BP model is proposed by combining the interpolation model with back propagation (BP) neural network, which can be used to improve the accuracy on both strain field inversion and load identification. The results show that the proposed model can achieve great load identification results with fewer samples and optimize the interpolation parameters at the same time, which could provide important basis for evaluating the accuracy of strain field.
Keywords:
Composite structures; FBG sensors; K-BP model; Load identification; Pseudo-Kriging interpolation; Strain field inversion

Contacts :
0