Numerical simulation of deformation and fracture in a coated material using curvilinear regular meshes

Abstract

This paper presents a computational analysis of the deformation and fracture mechanisms of a material with a porous polysilazane coating under tension and compression. A dynamic boundary-value problem in the plane strain statement is solved numerically by the finite-difference method. The coating-substrate interface and porous coating microstructure corresponded to configurations found experimentally are accounted for explicitly in the calculations. For this purpose an algorithm for curvilinear finite-difference meshing based on the solution of the elasticity theory has been developed. The algorithm implemented offers several benefits over the rectilinear meshing. Local regions experiencing bulk tension are shown to form along pore surfaces that control the fracture mechanisms at the mesoscale level.

Original language	English
Title of host publication	IOP Conference Series: Materials Science and Engineering
Publisher	Institute of Physics Publishing
Volume	71
Edition	1
DOIs	https://doi.org/10.1088/1757-899X/71/1/012072
Publication status	Published - 2015
Event	International Scientific Conference of Young Scientists: Advanced Materials in Construction and Engineering, TSUAB 2014 - Tomsk, Russian Federation Duration: 15 Oct 2014 → 17 Oct 2014

Other

Other	International Scientific Conference of Young Scientists: Advanced Materials in Construction and Engineering, TSUAB 2014
Country	Russian Federation
City	Tomsk
Period	15.10.14 → 17.10.14

ASJC Scopus subject areas

Engineering(all)
Materials Science(all)

Access to Document

10.1088/1757-899X/71/1/012072

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Cite this

Zinoviev, A., Balokhonov, RR., Martynov, S., Romanova, V., & Zinovieva, O. (2015). Numerical simulation of deformation and fracture in a coated material using curvilinear regular meshes. In IOP Conference Series: Materials Science and Engineering (1 ed., Vol. 71). [012072] Institute of Physics Publishing. https://doi.org/10.1088/1757-899X/71/1/012072

Numerical simulation of deformation and fracture in a coated material using curvilinear regular meshes. / Zinoviev, A.; Balokhonov, Ruslan Revovich; Martynov, S.; Romanova, V.; Zinovieva, O.

IOP Conference Series: Materials Science and Engineering. Vol. 71 1. ed. Institute of Physics Publishing, 2015. 012072.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zinoviev, A, Balokhonov, RR, Martynov, S, Romanova, V & Zinovieva, O 2015, Numerical simulation of deformation and fracture in a coated material using curvilinear regular meshes. in IOP Conference Series: Materials Science and Engineering. 1 edn, vol. 71, 012072, Institute of Physics Publishing, International Scientific Conference of Young Scientists: Advanced Materials in Construction and Engineering, TSUAB 2014, Tomsk, Russian Federation, 15.10.14. https://doi.org/10.1088/1757-899X/71/1/012072

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AB - This paper presents a computational analysis of the deformation and fracture mechanisms of a material with a porous polysilazane coating under tension and compression. A dynamic boundary-value problem in the plane strain statement is solved numerically by the finite-difference method. The coating-substrate interface and porous coating microstructure corresponded to configurations found experimentally are accounted for explicitly in the calculations. For this purpose an algorithm for curvilinear finite-difference meshing based on the solution of the elasticity theory has been developed. The algorithm implemented offers several benefits over the rectilinear meshing. Local regions experiencing bulk tension are shown to form along pore surfaces that control the fracture mechanisms at the mesoscale level.

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