Experimental evaluation of OSB-faced structural insulated panels subject to blast loads

Blast resistance of timber structural elements: A state-of-the-art review

“…Relevant trends can be observed that help shape this state-of-the-art review: (1) most tests were performed at the University of Ottawa using a pneumatically-driven shock tube to generate blast loads; (2) most specimens were subjected to uniform, far-field blast loads with Z > 5 m/kg 1/3 generating global flexural response; (3) most studies include a single-degree-of-freedom (SDOF) analysis component and high fidelity finite element analyses are rarely used; (4) most studies focused on the response of timber structures at the element level, thereby not considering the potential beneficial effects of system behaviour, load sharing and redistribution present in structural assemblies; (5) most research focus on different types of limit states, dynamic material properties, component failure modes, connections, and strengthening of existing structures. (55) and structural insulated panels (59). A load transfer device (LTD) must be used when non-planar targets, such as beams, columns, and connections, need to be tested in a shock tube.…”

“…This structural system is particularly relevant due to its insulation properties and high stiffness, which are generally primarily related to the thickness of the foam (59). At a material level, OSB facers are known to be strain-rate dependent, as identified by Meng et al (86) after a series of dynamic tensile tests.…”

“…Shock tubes are the most widely reported experimental technique for generating blast loads on timber structures. Pneumatically driven (Lloyd et al, 2010) and gas-detonation (Phillips et al (2021); Van Le et al (2020)) shock tubes have been used for this purpose, as shown in Figures 2(b) and (c), respectively. The advantage of shock tube testing is that relatively large-scale experiments can be performed in a controlled laboratory environment for the exploration of the fundamental behaviour of structures and validation of analytical models.…”

“…When subjected to axial or out-of-plane transverse loads, SIPs exhibit a sudden, brittle failure, after a linear load-deflection response, with highly variable failure modes (Jacques and Makar, 2019a, 2019b). Phillips et al, 2021 tested 95 mm thick polyurethane closed-cell foam core with 11 mm OSB facers SIP panels subjected to simulated blast loads, as shown in Figure 11(a). Simulated roof and floor diaphragms were installed to include the effect of realistic boundary conditions.…”

Analysis of gas–solid two-phase flow and structure optimization of mobile shot blasting machine recovery device

“…Because of its high processing efficiency, wide processing range and flexibility, it is widely used for cleaning and maintenance of mechanical parts, road and bridge and ship hull shells, and shot blasting machine is the equipment to realize shot blasting treatment 1 . Mobile shot blasting machine broke the traditional fixed shot blasting machine can only be cleaned indoors traditional parts of the limitations of the shot blasting process to expand to the surface of the ship rust removal and strengthening 2 , airport runway debonding repair, highway and bridge paint removal maintenance and various other fields, compared with other maintenance equipment, shot blasting treatment in the economy, environmental protection and efficiency has huge advantages 3 . Mobile shot blasting machine recycling device can realize the recycling of steel shot and automatic recycling of processing waste, but in the actual production and processing, the recycling rate of waste generated after shot blasting process is low 4 , and the dust particles generated during the recycling process are easy to cause environmental pollution, construction personnel are prone to lung diseases caused by inhalation of large amounts of dust 5 .…”