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Blast loads and variability on cylindrical shells under different charge orientations.

Fei Yin1,2, Xudong Zhi3,4, Feng Fan1,2

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Summary
This summary is machine-generated.

This study analyzed blast loads on cylindrical shells from detonations in five directions. Results show significant variations in peak overpressure and load behavior, crucial for anti-blast design.

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Area of Science:

  • Structural Engineering
  • Blast Load Analysis
  • Protective Structures

Background:

  • Cylindrical shells are vital in public and military infrastructure, facing significant blast risks.
  • Effective anti-blast design requires understanding building shape and blast wave interactions.
  • Existing data for blast load databases on typical buildings is limited.

Purpose of the Study:

  • To investigate and quantify blast loads on a scaled cylindrical shell subjected to external detonations.
  • To analyze the influence of detonation orientation on blast wave characteristics and load distribution.
  • To provide experimental and simulation references for developing a comprehensive blast load database.

Main Methods:

  • Detonating cylindrical charges in five different directions around a scaled cylindrical shell.
  • Measuring blast loads experienced by the cylindrical shell.
  • Photographing blast waves to capture their propagation and characteristics.
  • Combining experimental data with simulation results for comprehensive analysis.

Main Results:

  • Peak overpressure on the end face varied nearly twofold across the five detonation orientations.
  • Blast loads in the axial direction exhibited a secondary peak phenomenon.
  • Abrupt changes in blast loads were observed between axial and radial directions at specific angles.

Conclusions:

  • Detonation orientation significantly impacts blast load distribution and intensity on cylindrical shells.
  • Experimental and simulation data offer valuable insights for anti-blast design strategies.
  • The findings contribute to establishing a robust blast load database for typical structures.