Design and blast mitigation of solid pyramid structure for personnel

Area of Science:

• Mechanical Engineering
• Materials Science
• Protective Equipment Design

Background:

• Blasting shock waves present severe risks to human life.
• Effective blast mitigation strategies are crucial for personnel safety.
• Existing protective measures require further advancement.

Purpose of the Study:

• To introduce and evaluate a novel solid pyramid structure for blast wave mitigation.
• To investigate the influence of pyramid geometry (height, surface configuration) on protective capabilities.
• To elucidate the mechanisms behind blast mitigation using numerical simulations.

Main Methods:

• Design and fabrication of solid pyramid specimens with varying heights and surface features using 3D printing.
• Assessment of explosion mitigation performance via shock tube testing.
• Numerical simulations to analyze contributing factors and mechanisms of blast mitigation.

Main Results:

• The solid pyramid structure demonstrates significant effectiveness in protecting against blast loading.
• Blast mitigation performance improves with increasing pyramid height.
• Concave pyramid designs show superior protection compared to convex and flat configurations.
• Numerical simulations provide insights into the underlying mechanisms of blast wave attenuation.

Conclusions:

• The developed solid pyramid structure is a viable solution for personnel blast protection.
• Geometric optimization, particularly concave surfaces and increased height, enhances mitigation effects.
• This research offers valuable data for developing advanced protective equipment against blast threats.