Abstract
In this study, the effect of fragment or bullet impact before blast loading on laminated glass is studied experimentally. First, laminated windows consisting of two 3.8 mm thick annealed float glass plates and a 1.52 mm thick PVB interlayer were blast loaded in a shock tube with various pressures as a reference. In these tests, the blast loading was successively increased until fracture occurred not only in the glass plates but also in the PVB interlayer. Second, a diamond drill was used to make a 5 mm diameter centrally placed hole in some windows before they were blast loaded with the same pressures as those used for the undamaged windows. Third, windows were impacted by 7.62 mm AP bullets, both with and without the brass jacket, before they were blast loaded. Such bullets may have similar mass and velocity to typical primary fragments from an explosive detonation. The results are finally compared with each other and discussed with respect to the blast protection offered. It is found that the capacity is significantly reduced if the laminated glass is perforated by a fragment or a bullet before it is blast loaded and that such impacts should be considered in the design of blast-resistant windows.
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References
Hooper PA, Sukhram RAM, Blackman BRK, Dear JP (2012) On the blast resistance of laminated glass. Int J Solids Struct 49(6):899–918
Wiederhorn SM (1969) Fracture surface energy of glass. J Am Ceram Soc 52(2):99–105
Larcher M, Solomos G, Casadei F, Gebbeken N (2012) Experimental and numerical investigations of laminated glass subjected to blast loading. Int J Impact Eng 39(1):42–50
Zhang X, Hao H, Wang Z (2015) Experimental study of laminated glass window responses under impulsive and blast loading. Int J Impact Eng 78:1–19
Pelfrene J, Kuntsche J, Van Dam S, Van Paepegem W, Schneider J (2016) Critical assessment of the post-breakage performance of blast loaded laminated glazing: experiments and simulations. Int J Impact Eng 88:61–71
Wikipedia. https://en.wikipedia.org/wiki/2011_Norway_attacks, Accessed: 2018-07-07
Cormie D, Mays G, Smith PD (2009) Blast Effects on Buildings, 2nd edn. Thomas Telford Publishing, Westminster
U.S. Army, TM5-855-1, Fundamentals of protective design for conventional weapons, Chapter 7: Fragmentation, Technical Manual
Arnold W, Rottenkolber E (2008) Fragment mass distribution of metal cased explosive charges. Int J Impact Eng 35(12):1393–1398
Grisaro HY, Benamou D, Dancygier AN (2018) Investigation of blast and fragmentation loading characteristics–field tests. Eng Struct 167:363–375
Guo ZW, Huang GY, Liu CM, Feng SS (2018) Velocity axial distribution of fragments from non-cylindrical symmetry explosive-filled casing. Int J Impact Eng 118:1–10
Nyström U, Gylltoft K (2009) Numerical studies of the combined effects of blast and fragment loading. Int J Impact Eng 36(8):995–1005
Grisaro HY, Dancygier AN (2018) Characteristics of combined blast and fragments loading. Int J Impact Eng 116:51–64
Leppänen J (2005) Experiments and numerical analyses of blast and fragment impacts on concrete. Int J Impact Eng 31(7):843–860
Hutchinson MD (2009) The escape of blast from fragmenting munitions casings. Int J Impact Eng 36(2):185–192
Grisaro HY, Dancygier AN (2018) Spatial mass distribution of fragments striking a protective structure. Int J Impact Eng 112:1–14
NS-EN 572-1: Glass in building – Basic soda-lime silicate glass products – Part 2: Float glass, Standard CEN (2012)
Osnes K, Børvik T, Hopperstad OS (2018) Testing and modelling of annealed float glass under quasi-static and dynamic loading. Eng Fract Mech 201:107–129
Wachtman JB, Cannon WR, Matthewson MJ (2009) Mechanical Properties of Ceramics, 2nd edn. Wiley, Hoboken
NS-EN 572-1: Glass in building – Basic soda-lime silicate glass products – Part 1: Definitions and general physical and mechanical properties Standard CEN (2012)
Anstis G, Chantikul P, Lawn BR, Marshall D (1981) A critical evaluation of indentation techniques for measuring fracture toughness: I, Direct crack measurements. J Am Ceram Soc 64(9):533–538
Peroni M, Solomos G, Pizzinato V, Larcher M (2011) Experimental investigation of high strain-rate behaviour of glass. In: Applied Mechanics and Materials, vol 82. Trans Tech Publ, pp 63–68
Zhang X, Zou Y, Hao H, Li X, Ma G, Liu K (2012) Laboratory test on dynamic material properties of annealed float glass. International Journal of Protective Structures 3(4):407–430
Del Linz P, Wang Y, Hooper P, Arora H, Smith D, Pascoe L, Cormie D, Blackman B, Dear J (2016) Determining material response for Polyvinyl Butyral (PVB) in blast loading situations. Exp Mech 56(9):1501–1517
Zhang X, Hao H, Shi Y, Cui J (2015) The mechanical properties of polyvinyl butyral (PVB) at high strain rates. Constr Build Mater 93:404–415
Hooper PA, Blackman BRK, Dear JP (2012) The mechanical behaviour of poly (vinyl butyral) at different strain magnitudes and strain rates. J Mater Sci 47(8):3564–3576
Franz J, Schneider J (2014) Through-cracked-tensile tests with polyvinylbutyral (PVB) and different adhesion grades. In: Engineered Transparency International Conference at Glasstec, pp 135–142
Børvik T, Dey S, Clausen A (2009) Perforation resistance of five different high-strength steel plates subjected to small-arms projectiles. Int J Impact Eng 36(7):948–964
Holmen JK, Johnsen J, Jupp S, Hopperstad OS, Børvik T (2013) Effects of heat treatment on the ballistic properties of AA6070 aluminium alloy. Int J Impact Eng 57:119–133
Forrestal M, Børvik T, Warren T (2010) Perforation of 7075-T651 aluminum armor plates with 7.62 mm APM2 bullets. Exp Mech 50(8):1245–1251
Børvik T, Forrestal M, Warren T (2010) Perforation of 5083-H116 aluminum armor plates with ogive-nose rods and 7.62 mm APM2 bullets. Exp Mech 50(7):969–978
Fagerholt E (2012) Field measurements in mechanical testing using close-range photogrammetry and digital image analysis, Ph.D. thesis, Norwegian University of Science and Technology (NTNU) Trondheim
Krauthammer T, Altenberg A (2000) Negative phase blast effects on glass panels. Int J Impact Eng 24(1):1–17
Aune V, Fagerholt E, Langseth M, Børvik T (2016) A shock tube facility to generate blast loading on structures. International Journal of Protective Structures 7(3):340–366
NS-EN 13541: Glass in building – Security glazing- Testing and classification of resistance against explosion pressure, Standard CEN (2012)
Acknowledgements
The present work has been carried out with financial support from the Centre of Advanced Structural Analysis (CASA), Centre for Research-based Innovation, at the Norwegian University of Science and Technology (NTNU) and the Research Council of Norway through project no. 237885 (CASA). The authors would like to acknowledge Mr. Trond Auestad for assisting with the experimental programme, and Modum Glassindustri for providing the glass specimens.
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Osnes, K., Dey, S., Hopperstad, O.S. et al. On the Dynamic Response of Laminated Glass Exposed to Impact Before Blast Loading. Exp Mech 59, 1033–1046 (2019). https://doi.org/10.1007/s11340-019-00496-1
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DOI: https://doi.org/10.1007/s11340-019-00496-1