Basalt fiber strengthening structural insulated panel subjected to windborne debris impact (919)
With the climate change, cyclone intensity and occurrence increase. Typhoon Haiyan in 2013 with wind speed of 315 km/h devastated Philippines. It was found that windborne debris contributed to the devastating damages in many cyclones. The debris penetration through building envelope typically induces a differential internal pressurization which contributes to the increased loading of the building's roof and leeward walls, ultimately leading to building failures. In the building industry, structural insulated panel (SIP) with oriented strand board (OSB) skins is becoming popular in the current and predicted market due to its sustainability feature. In the previous study by Chen and Hao (2014), SIP panels with OSB skins were tested according to the Australian Standard (AS/NZS1170.2:2011). It was found that all the tested specimens failed at impact velocities around10m/s, which is substantially lower than the required projectile impact velocity of 44m/s at Cyclone Region D. To increase the capacity of the existing SIP panels and minimize possible damage, engineering adaptation method should be explored to strengthen the panel in a "green" way whilst considering performance and cost. Basalt fiber, similar to carbon fiber and fiberglass, is a promising solution in terms of its shock resistance capacity and low cost. Laboratory tests will be carried out on the SIP panels strengthened by basalt fiber using a pneumatic cannon system. The perforation resistance capacity of strengthened panels will be assessed by comparing the previous testing results. The capacity of basalt fiber strengthened SIP panels in resisting windborne debris impact will be examined.