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Influence of the type of pressure relief hole on explosion-proof performance of blast wall
Published in Mohd Johari Mohd Yusof, Junwen Zhang, Advances in Civil Engineering: Structural Seismic Resistance, Monitoring and Detection, 2023
Erlei Bai, Xiaorong Li, Liangxue Nie, Xin Luo, Mengnan Dai
According to a large number of research results, the blast wall is mainly used to prevent the explosion of flammable and explosive substances (Das & Weinberg 2012), terrorist explosion (Eytan 2005; Medvedev et al. 2020; Li & Wang 2021), offshore oil and gas explosion (Boh et al. 2005; Chen et al. 2021; Sohn et al. 2015), etc. while the study on the blast wall mainly focuses on the following aspects: firstly, the function of the explosion proof wall, for example, Rose (Rose et al. 1993) carried out a preliminary experimental study on the weakening effect of explosion walls, subsequently, Whitham analyzed the blocking effect of explosion walls; Beyer (Beyer 1986) explored the variation law of parameters of blast wave behind blast walls, so as to study the protective effect of walls on rear protected objects. Secondly is the design of blast walls, for example, Chipley (2003) and Bowles (2003) comprehensively introduce the pressure-load characteristics of blast walls, and analyze the design method; Hedayati (Hedayati et al. 2015) explored a new method for studying the mechanical response of stainless steel shaped walls. Thirdly, the study of the dynamic response of blast walls. Scherbatiuk (Scherbatiuk et al. 2008) carried out the anti-explosion test of blast walls, based on which the dynamic performance of walls under blast wave was studied; Xu W (Xu et al. 2015) and Li W (Li et al. 2015) were both used numerical simulation method to study the dynamic response of autoclaved aerated concrete masonry blast wall under explosion load and the mechanical response of reinforced concrete blast wall under dynamic load respectively.
Myths About Technology
Published in Kletz Trevor, Dispelling Chemical Engineering Myths, 2017
Despite all our precautions, explosions may occur inside or outside the plant equipment. Certain items of equipment in which the chance of an explosion occurring has been judged to be greater than normal (e.g., certain oxidation reactors) have been surrounded by blast walls to protect people and other equipment from missiles and blast.
Performance-based design of stainless steel profiled barrier blast walls
Published in Ships and Offshore Structures, 2021
Mohammad H. Hedayati, Srinivas Sriramula, Richard D. Neilson
Although a realistic finite element analysis would be advantageous and is recommended, using the developed FEA programming package would resolve partially the problem of developing an appropriate approach for the design of the stainless steel blast walls, if deterministic analyses were implemented in the assessments. The nature of the input design parameters for assessing the blast walls, in particular the explosion loading scenarios, are stochastic (i.e. random); therefore, a relaibility approach needs to be developed. In addition, for implementing the reliability results for design and assessments, a performance-based design approach is required. For such design, performance levels of the blast wall structures need to be developed (e.g. Serviceability, Damage and Collapse levels), based on various explosion events.