Characterization and ballistic performance of thin pre-damaged resin-starved aramid-fiber composite panels
| Autor: | Bryn J James, Stephen L. Ogin, David Jesson, Cerise A Edwards, Richard P. Boardman, Rebecca L Livesey, Matthew Oldfield |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Polymers and Plastics Armour Composite number 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Characterization (materials science) Aramid 0103 physical sciences Chemical Engineering (miscellaneous) Composite material 0210 nano-technology Micro ct |
| Zdroj: | Textile Research Journal. 91:2846-2858 |
| ISSN: | 1746-7748 0040-5175 |
| DOI: | 10.1177/00405175211013424 |
| Popis: | Military personnel use protective armor systems that are frequently exposed to low-level damage, such as non-ballistic impact, wear-and-tear from everyday use, and damage during storage of equipment. The extent to which such low-level pre-damage could affect the performance of an armor system is unknown. In this work, low-level pre-damage has been introduced into a Kevlar/phenolic resin-starved composite panel using tensile loading. The tensile stress–strain behavior of this eight-layer material has been investigated and has been found to have two distinct regions; these have been understood in terms of the microstructure and damage within the composite panels investigated using micro-computed tomography and digital image correlation. Ballistic testing carried out on pristine (control) and pre-damaged panels did not indicate any difference in the V50 ballistic performance. However, an indication of a difference in response to ballistic impact was observed; the area of maximal local out-of-plane deformation for the pre-damaged panels was found to be twice that of the control panels, and the global out-of-plane deformation across the panel was also larger. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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