Fracture phenomena of float glass measured by the quasi-static method

Article type: Research Article

Authors: Aratani, Shin’ichi^a; | Egawa, Hiroyuki^{b; †} | Ohmi, Toshihito^{b; ‡} | Yokobori Jr., A. Toshimitsu^{b; §}

Affiliations: [a] GMS Laboratory, Ageo, Japan | [b] Graduate School of Engineering, Tohoku University, Sendai, Japan

Correspondence: [*] Corresponding author: Shin’ichi Aratani, GMS Laboratory, 1964-10, Ageo-city, Saitama, 362-0022, Japan. E-mail: [email protected]

Note: [†] Current office: J-Power, Japan.

Note: [‡] Current office: Shonan Institute of Technology, Japan.

Note: [§] Current office: Teikyo University, Japan. This is the second edition published in JSFM, 53(2) (2019), 21–31.

Abstract: Glass fracture and changes in bending load were investigated by the quasi-static loading method which is characterized by holding a fixed time at each displacement level and incrementally applying displacement. Holding time at each step was 60 s and the incremental displacement was 0.02 mm as the load condition. Ordinary soda-lime-silicate float glass of 50 × 10 × 4 mm was used as the specimen. The glass fracture occurred as the bending load decreased with time, which might be explained using the occurrence of time-dependent fracture and function as a viscoelastic property even at room temperature. Fracture properties of alumina ceramics have the possibility to be closer to float glass than silicon carbide which is called general ceramics.

Keywords: Fracture phenomena, quasi-static method, float glass, time-dependent fracture, viscoelasticity property at room temperature

DOI: 10.3233/SFC-204001

Journal: Strength, Fracture and Complexity, vol. 13, no. 2, pp. 91-104, 2020