Experimental study on glass edge machining flaw characterization

Lindqvist, Maria; Louter, Christian

doi:10.1016/j.engfracmech.2014.05.008

Cited by 10 publications

(3 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The MOR (σ0) and Weibull modulus (m) of annealed and chemically strengthened auliminosilicate glass was also obtained as shown in Table 1. Well-controlled edge machining leaves flaws within 20～30 μm [24]. The DOL of ~20 μm cannot ensure that these machining flaws are fully enveloped with the CS, thereby causing the small Weibull modulus.…”

Section: Resultsmentioning

confidence: 99%

Effect of residual stress on the fracture of chemically strengthened thin aluminosilicate glass

et al. 2016

View full text Add to dashboard Cite

The effect of residual stress on the fracture of chemically strengthened thin aluminosilicate glass was investigated. The large deflection problem on the flexure of thin chemically strengthened glass was solved through finite element analysis. The relationship among compressive stress (CS), central tension (CT), and the modulus of rupture of chemically strengthened thin glass was also discussed. High CS and low CT improved the flexural strength of chemically strengthened glass. However, the effect of residual stress was more complex on Weibull modulus than on strength. The effect of residual stress on the fractography of chemically strengthened thin glass was analyzed. Transparent and opaque zones were observed on the fracture surface of chemically strengthened glass. The relative thickness of the opaque zone (dOpaque/d0), which is a constant in the same fracture zone, linearly decreased with increasing fracture zone. This result indicates that the stored elastic strain energy was released with the number of transverse cracks. These results provide useful information on the failure analysis of chemically strengthened thin glass.

show abstract

Section: Resultsmentioning

confidence: 99%

Effect of residual stress on the fracture of chemically strengthened thin aluminosilicate glass

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Annealed glass has a linear elastic behaviour: annealed float glass has a modulus of elasticity of 70 GPa, and a bending strength of 30-80 MPa Feldmann et al (2014). The bending strength of glass has a high variability because it is a brittle material, and its breakage is mainly due to the presence of small surface flaws randomly scattered To et al (2008), which may appear during the manufacturing, transportation, assembly or service life of glass elements Lindqvist and Louter (2014). When a critical stress or strain is surpassed, the surface flaws grow uncontrollably Griffith (1921).…”

Section: Introductionmentioning

confidence: 99%

Experimental study and comparison of different fully transparent laminated glass beam designs

et al. 2021

View full text Add to dashboard Cite

Laminated glass beams without metallic or polymeric reinforcements generally lack post-breakage strength and ductility. This paper aims to perform a comparative study by testing five different fully transparent laminated glass beam designs in order to see how parameters such as the number and thickness of glass sheets (3 x 10 mm or 5 x 6 mm), the interlayer material (PVB Clear or SentryGlas), and the thermal treatment of glass (annealed or heat-strengthened) affect the pre-breakage performance and post-breakage safety. A buckling analysis is also performed using a numerical model with ABAQUS CAE. The study includes a comparison between the results of different experimental mechanical tests on laminated glass beams, including the tests presented in this paper, as well as other tests found in the literature. All designs presented a linear elastic behaviour until initial breakage. The interlayer material mainly affected the crack shape of laminated glass beams. Beams with five sheets of annealed glass had a more progressive breakage, and therefore a safer behaviour, than beams with three sheets of annealed or heat-strengthened glass.

show abstract

“…For studies concerning the edge flaws of glass specimens, we refer to the work of e.g. Lindqvist [20]. Figure 3 shows two assembled specimens of medium size after failure; the specimen in Figure 3a failed at the edge and the specimen in Figure 3b, at the face.…”

Section: Quasi-static Four-point Bending Testsmentioning

confidence: 99%

Testing and modelling of annealed float glass under quasi-static and dynamic loading

Osnes

Hopperstad

2018

Engineering Fracture Mechanics

View full text Add to dashboard Cite

In recent years, a considerable number of studies has been carried out to analyse the behaviour of laminated glass plates under blast loading by the use of the finite element method. This has proven to be quite challenging, as the response of the laminated glass is complex. The fracture strength of the glass layers govern much of the total response; however, a limited effort is often made to selecting this value in the analyses. The current work aims to identify the probabilistic fracture strength of the glass alone as a function of its geometry, boundary conditions and loading situation by the use of a newly proposed strength prediction model. It should be noted that the current study focuses on the initiation of fracture in glass plates, and no effort has been put into the description of crack propagation. To facilitate the validation of the model, three different experimental test series were carried out on annealed float glass. This included quasi-static four point bending tests on relatively small glass specimens, and quasi-static and blast pressure tests on larger glass plates. The experimental work demonstrated that the fracture strength of glass exhibits a large scatter within the same test setup. It also revealed that the fracture strength and its scatter were dependent on the geometry, and the boundary and loading conditions. The strength prediction model was able to successfully capture many of the trends observed in the quasi-static tests. Regarding the blast tests, the model was able to reproduce the experimental results reasonably well.

show abstract

Experimental study on glass edge machining flaw characterization

Cited by 10 publications

References 25 publications

Effect of residual stress on the fracture of chemically strengthened thin aluminosilicate glass

Effect of residual stress on the fracture of chemically strengthened thin aluminosilicate glass

Experimental study and comparison of different fully transparent laminated glass beam designs

Testing and modelling of annealed float glass under quasi-static and dynamic loading

Contact Info

Product

Resources

About