TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

 
ISSN (print) 2542-2324 /(online) 2618-8244


Articles of The Transactions of KSRC








Approaches to refinement of analytical models for stress-strain state assessments of structures based on the analysis of monitoring system data



Full text article ( in russian)

Year

 
2021

Issue

 
395

Volume

 
1

Pages

 
47-54

Caption

 
Approaches to refinement of analytical models for stress-strain state assessments of structures based on the analysis of monitoring system data

Authors

 
Korshunov V., Mudrik R., Ponomarev D., Rodionov A.

Keywords

 
monitoring system, strain gauge, FE method, stability, geometric non-linearity, straining diagram.

DOI

 
10.24937/2542-2324-2021-1-395-47-54

Summary

 
Object and purpose of research. This paper discusses numerical simulation possibilities in terms of stress-strain monitoring for marine engineering structures. This approach can simulate the behavior of strain gauges for both elastic and plastic material behavior.
Subject matter and methods.FEM-based simulation of strain gauge operation process taking into account geometric and physical non-linearity.
Main results. Development of refined FE models for sensor installation area of stress-strain monitoring system. Numerical simulation of uniaxial and triaxial strain gauge operation. Time histories of strain gauge readings for linear and non-linear behavior of material. Sensitivity analysis of strain gauges in terms of various strain types. Update of strain gauge arrangement for the best description of structural strains.
Conclusion. These results demonstrate and confirm a strong potential of numerical models in development of stress-strain monitoring systems for engineering structures. Simulating strain gauge operation, these models make it possible to determine global strained state of given structure as per strain gauging data for some of its areas.

Rubrics

 
Naval architecture

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