Unified curve of the edge chipping resistance in connection with the rounding radius indenter. (1st June 2017)

• Record Type: Journal Article
• Authors: Batanova, O.A.; Gogotsi, G.A.; Matvienko, Yu.G.
• Is Part Of: Engineering fracture mechanics. Volume 178(2017)
• Page Start: 265
• Page End: 278
• Publication Date: 2017-06-01
• Subjects: Numerical modeling -- Edge chipping test -- Indenter's spherical tip radius -- Ceramics; Fracture mechanics -- Periodicals; Rupture, Mécanique de la -- Périodiques; Fracture mechanics; Periodicals; 620.112605
• DOI: 10.1016/j.engfracmech.2017.04.025
• Languages: English
• ISSNs: 0013-7944

Abstract

Highlights: Numerical modeling is employed to analyze edge chipping tests. The effect of the indenter tip radius on experimental results is discussed. Parameters of the basic distances for the tests are established. A unified curve of the edge chipping resistance is proposed. Abstract: The results of a combined computational and experimental research into the fracture resistance of ceramic materials by specimen edge chipping are provided. The chipping was performed with conic diamond indenters that had spherical tip radii of 100, 200 and 400 μ m . The computational analysis was conducted on the basis of finite element modeling by means of ANSYS software. The parameters of the basic distances in an analysis of the stress, strain, and displacement fields in the chipping zone for the tests (upper and lower limit) have been established for the above-mentioned indenters in order to ensure the correct comparative assessment of the materials under research. Unified curves of edge chipping resistance of the ceramic materials have been obtained for the indenters with various spherical tip radii.