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Updated: Jul 8, 2025

Evaluating Primary Blast Effects In Vitro

Evaluating Primary Blast Effects In Vitro

Published on: September 18, 2017

Evaluating Pelvis Response During Simulated Underbody Blast Loading.

Thanyani Pandelani¹, Diagarajen Carpanen², Spyros D Masouros³

¹Unisa Biomechanics Research Lab, Department of Mechanical Engineering, School of Engineering, College of Science Engineering and Technology, University of South Africa, Pretoria 0184, South Africa; Department of Bioengineering, Imperial College London, London SW7 2BX, UK.

Journal of Biomechanical Engineering

|December 10, 2023

Summary

This summary is machine-generated.

Under-body blasts from improvised explosive devices cause severe pelvic fractures. This study used cadaveric specimens to analyze fracture patterns from simulated blast impacts, revealing key injury mechanisms.

Keywords:

blast explosives impact pelvic injury

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Last Updated: Jul 8, 2025

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Published on: September 18, 2017

Blast Quantification Using Hopkinson Pressure Bars

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A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials

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Published on: May 18, 2015

Area of Science:

Biomechanics
Trauma research
Military medicine

Background:

Blast injuries from improvised explosive devices (IEDs) are a leading cause of death in modern conflicts.
Under-body blasts (UBBs) transmit high loads to vehicle occupants, causing significant torso and pelvic injuries.
Pelvic fractures resulting from UBBs have high mortality rates but poorly understood injury mechanisms.

Purpose of the Study:

To investigate the injury mechanisms of pelvic fractures resulting from under-body blast (UBB) events.
To characterize the types and severity of pelvic fractures under simulated UBB loading conditions.

Main Methods:

Three fresh-frozen male pelvic specimens were subjected to axial impact loading.
A 12 kg mass was dropped onto the pelvic specimens at velocities ranging from 1 to 8.6 m/s.
Impact parameters (time to peak velocity: 3.8–5.8 ms) simulated under-body blast (UBB) loading profiles.

Main Results:

Fracture patterns included bilateral pubis rami fractures, bilateral ischium fractures, and sacroiliac joint disruption.
The study identified distinct injury types correlating with specific impact velocities and loading profiles.
Results provide biomechanical data on pelvic response to UBB impacts.

Conclusions:

The study elucidates pelvic fracture mechanisms relevant to under-body blast (UBB) injuries.
Findings contribute to understanding the high mortality associated with pelvic fractures in blast-related trauma.
This research can inform the development of improved protective measures for vehicle occupants.