Structural design and shock wave attenuation properties of multilayered polyurethane and polyurea materials
Source abstract
Abstract
Abstract Explosive blasts are considered a distinct hazard in modern military conflicts, which cause extensive damage to buildings and people. Although conventional impact‐resistant materials, consisting of metals/ceramics and polymers, have been researched systematically, the study of lightweight polymer matrix materials on explosive blast attenuation is limited. Therefore, we designed two main structural materials to evaluate the protective ability and mechanical properties of polyurethane elastomer (PUE) and polyurea (PUA) engineering materials under explosive blast loads. The first material was obtained by doping reinforced carbon nanofibers into PUE composites, and the second material was designed based on the mechanical properties of the PUE and PUA single‐layer plates. The attenuation rate of PUE nanocomposites with different nanofiller masses was found to be reduced by 48.44%. Involving multilayers between different types of polymers, PUE/PUA composite plates exhibited an attenuation rate of 84.82% by altering the structure and materials based on their mechanical properties under explosive loads. Therefore, they can provide a favorable and practical strategy for the preparation and structural design of protection materials to withstand the shock wave in vehicle applications, gas explosions, and military events. Highlights Lightweight polymer matrix materials on explosive blast attenuation were studied systematically. Composite plates were made up of polyurea and polyurethane elastomer. Two main structural materials were designed. Carbon nanofibers were used to enhance the composites. PUE/PUA composite plates exhibited an attenuation rate of 84.82% under the explosion.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Structural Response to Dynamic Loads · High-Velocity Impact and Material Behavior · Transportation Safety and Impact Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Materials Science and Engineering Xiangtan University Xiangtan China
Research and Development Department Qingdao Green World New Material Technology Co., Ltd. Qingdao China
Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education Xiangtan University Xiangtan China
State Key Laboratory of Intense Pulsed Radiation Simulation and Effect Northwest Institute of Nuclear Technology Xi'an China
CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics University of Science and Technology of China Hefei China
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