Missile Impact Resistant Test of Glasses According to ISO 16932
Takashi Maruyama*1, Hiromasa Kawai*2, Hiroaki Nishimura*3,
and Mayuko Hanatani*4
*1Disaster Prevention Research Institute, Kyoto University, Gokasho, Ujishi, Kyoto 611-0011, Japan
*2Tokyo Denki University, Hikigun, Hatoyamacho, Ishizaka, Saitama 350-0394, Japan
*3General Building Research Corporation of Japan, 5-8-1 Fujishirodai, Suita, Osaka 565-0873, Japan
*4Kyoto University, Gokasho, Ujishi, Kyoto 611-0011, Japan
The importance of protecting windows from windborne debris has been pointed out in many reports on wind induced disaster. In Japan, there are still no building codes or standards to protect cladding from wind-borne debris. In contrast, both American and ISO standards cover specifications, including testing methods, for cladding performance under impact by wind-borne debris. A series of impact tests was conducted to evaluate the safety of different types of window glasses. This paper describes results for impact resistant tests, including destruction modes, for float glass, tempered glass, wired glass and glass with film based on ISO standards using an air cannon to propel missiles, e.g., debris. It was found that glass other than that with film was destroyed by the “missile A,” which is categorized in the lowest rank of the test missile of ISO standards. Thus, film minimally improves the impact resistant performance of glass.
-  H. Nishimura, “Prevention of Occurrence of Windborne Debris and Protection, Wind Engineers,” JAWE, Vol.35, No.1 (No.122), pp. 41-46, 2010 (in Japanese).
-  Bending and impact test by falling-ball and shot-bag for tempered glass: JIS R 3206, for film for glass of windows, JIS A 5759, for boads for building, JIS A 1408.
-  T. Maruyama, “On the Evaluation Method of Impact Resistant Performnce of Cladding toWindborne DebrisWind Engineers,” JAWE, Vol.35, No.1 (No.122), pp. 33-40, 2010 (in Japanese).
-  ASCE 7-05, “Minimum Design Loads for Buildings and Other Structures,” ASCE (American Society of Civil Engineers) Standard, 2005.
-  ASTM E1886-04, “Standard Test Method for Performance of ExteriorWindows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Missiles(s) and Exposed to Cyclic Pressure Differentials,” ASTM (American Society for Testing and Materials) Standard, 2004.
-  ASTME1996-04, “Standard Specification for Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective System Impacted by Windborne Debris in Hurricanes,” ASTM (American Society for Testing and Materials) Standard, 2004.
-  ISO 16932, “Glass in Building – Destructive-windstorm-resistant security glazing – Test and classification,” ISO (International Organization for Standardization).
-  T. Maruyama, H. Kawai, H. Nishimura, and M. Kamo, “An Aircannon for Impact Resistant Test of Cladding,” J. ofWind Engineering, JAWE, Vol.34, No.2 (No.119), pp. 31-38, 2009 (in Japanese).
-  T. Maruyama, H. Kawai, H. Nishimura, and M. Kamo, “Performance of an Experimental Air-cannon for Impact Resistant Test of Cladding,” Annuals of Disaster Prevention Research Institute, Kyoto Univer Sity, No.52 B, pp. 481-489, 2009 (in Japanese).
-  T. Maruyama, H. Kawai, H. Nishimura, M. Kamo, and Y. Maeda, “Missile Impact Resistant Test for Laminated Glasses according to ISO16932, Wind Engineers,” JAWE, Vol.34, No.2 (No.119), pp. 149-150, 2009 (in Japanese).