Computational Models for Blast Pressure Load Analysis in Explosions

  • Jeom Kee PaikEmail author
Part of the Topics in Safety, Risk, Reliability and Quality book series (TSRQ, volume 37)


Explosions are a typical type of accidental events that occur in engineering structures and infrastructures. Although explosions are often accompanied by fires, their underlying mechanisms are completely different. In contrast to fires manifesting in the evolution of light, heat, and flame, such hydrocarbon explosions result in a blast or a rapid increase in overpressure, which can cause the catastrophic failure of structures and infrastructures. To analyze blast pressure loads, how gas clouds expand and disperse with varying concentration ratios around structures must be identified. Various conditions in the surrounding environment, such as wind and ventilation, significantly affect the gas dispersion characteristics and subsequent consequences of explosions. If a gas cloud with a different concentration, depending on its location, is ignited, explosions occur and cause overpressure loads. This chapter describes computational models for the analysis of blast pressure loads of structures in explosions. The main tasks involve the characterization of gas dispersion and of the blast pressure load profile, which includes the rise time, peak overpressure load, decay type of the overpressure load, and duration. This chapter focuses on the computational methods for identifying the blast pressure load characteristics of a certain explosion event.


  1. 1.
    ABS (2013) Accidental load analysis and design for offshore structures. American Bureau of Shipping, Houston, TX, USAGoogle Scholar
  2. 2.
    API (2006) Design of offshore facilities against fire and blast loading. API-RP2FB, American Petroleum Institute, Washington, DC, USAGoogle Scholar
  3. 3.
    Bae MH, Paik JK (2018) Effects of structural congestion and surrounding obstacles on the overpressure loads in explosions. Ships Offshore Struct 13(2):165–180CrossRefGoogle Scholar
  4. 4.
    DNVGL (2010) Design against accidental loads. DNV-RP-C204, Det Norske Veritas, Oslo, NorwayGoogle Scholar
  5. 5.
    DNVGL (2014) Safety principles and arrangements. DNV-OS-A101, Det Norske Veritas, Oslo, NorwayGoogle Scholar
  6. 6.
    Gieras M, Klemens R, Rarata G, Wolanski P (2006) Determination of explosion parameters of methane-air mixtures in the chamber of 40 dm3 at normal and elevated temperature. J Loss Prev Process Ind 19:263–270CrossRefGoogle Scholar
  7. 7.
    Paik JK, Kim BJ, Jeong JS, Kim SH, Jang YS, Kim GS, Woo JH, Kim YS, Chun MJ, Shin YS (2010) CFD simulations of gas explosion and fire actions. Ships Offshore Struct 5(1):3–12CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringUniversity College LondonLondonUK
  2. 2.The Korea Ship and Offshore Research Institute (Lloyd’s Register Foundation Research Centre of Excellence)Pusan National UniversityBusanKorea (Republic of)

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