TRANSACTIONS OF THE KRYLOV STATE RESEARCH CENTRE

Science journal

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


Articles of The Transactions of KSRC








Analytical study on stability of microspheres in sphere-plastic structure under omnidirectional compression



Full text article ( in russian)

Year

 
2020

Issue

 
20202

Volume

 
2

Pages

 
119-124

Caption

 
Analytical study on stability of microspheres in sphere-plastic structure under omnidirectional compression

Authors

 
Dodonov P., Ryzhkin A.

Keywords

 
syntactic foams, matrix, microspheres, analytical solution, finite-element method, structural stability

DOI

 
10.24937/2542-2324-2020-2-S-I-119-124

Summary

 
This paper analyses prediction methods for failure pressure of microspheres in the structure of syntactic foams, discussing several micromechanical models. The solutions were obtained as per linear elasticity theory and finite-element method. It was investigated how geometric and physical & mechanical characteristic of syntactic foams depend on its components. Pressure failure is much lower if the boundary of the medium is close to the inclusions. This paper suggests an analytical model that yielded conservative estimate of critical pressure for microspheres.

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