Blast Pressure Measurements of an Underwater Detonation in the Sea


Tatlisuluoglu A., Beji S.

JOURNAL OF MARINE SCIENCE AND APPLICATION, 2021 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2021
  • Doi Number: 10.1007/s11804-021-00230-1
  • Journal Name: JOURNAL OF MARINE SCIENCE AND APPLICATION
  • Journal Indexes: Emerging Sources Citation Index, Scopus, INSPEC
  • Keywords: Underwater explosions, High-pressure shock waves, Effects of directionality on blast pressure records, Pressure loading formulas, Applications of the least-squares method, NUMERICAL-SIMULATION, DYNAMIC-RESPONSE, SHOCK RESPONSE, EXPLOSION, DAMAGE, PLATE

Abstract

Blast pressure measurements of a controlled underwater explosion in the sea were carried out. An explosive of 25-kg trinitrotoluene (TNT) equivalent was detonated, and the blast pressures were recorded by eight different high-performance pressure sensors that work at the nonresonant high-voltage output in adverse underwater conditions. Recorded peak pressure values are used to establish a relationship in the well-known form of empirical underwater explosion (UNDEX) loading formula. Constants of the formula are redetermined by employing the least-squares method in two different forms for best fitting to the measured data. The newly determined constants are found to be only slightly different from the generally accepted ones.