In Honor of Nobel Laureate Dr. Aaron Ciechanover
| SESSION: CompositeTuePM2-R1 |
Meyers International Symposium (11th Intl. Symp. on Composite, Ceramic & Nano Materials Processing, Characterization & Applications) |
| Tue. 18 Nov. 2025 / Room: Dusit 1 | |
| Session Chairs: Sergio Monteiro; Student Monitors: TBA | |
A growing demand for research about ballistic armor shields follows the increase of violence around the world. Ultimately, different composite materials with polymeric matrices have already presented the minimum performance as an individual protection required with cheaper and lower density, such as those reinforced with natural lignocellulosic fiber (NLF). The Cyperus malaccensis, a type of sedge fiber, is already used in simple items like ropes, furniture, and paper, but has not yet been investigated as composite reinforcement for possible ballistic protection applications. Therefore, composite plates were prepared for the ballistic tests, one for each condition of 10, 20 and 30 vol% sedge fibers. Each plate has been subjected to 5 test-shots using 7.62 mm commercial ammunition. The fibers were embedded under pressure in the epoxy resin matrix and cured at room temperature for 24 hours. The tested specimens were examined by scanning electron microscopy. Besides, analysis of variance was performed and the absorbed energy of all specimens were evaluated.
| SESSION: CompositeWedPM1-R1 |
Meyers International Symposium (11th Intl. Symp. on Composite, Ceramic & Nano Materials Processing, Characterization & Applications) |
| Wed. 19 Nov. 2025 / Room: Dusit 1 | |
| Session Chairs: Henry Alonso Colorado Lopera; Student Monitors: TBA | |
A growing demand for research about ballistic armor shields follows the increase of violence around the world. Ultimately, different composite materials with polymeric matrices have already presented the minimum performance as an individual protection required with cheaper and lower density, such as those reinforced with natural lignocellulosic fiber (NLF). The Cyperus malaccensis, a type of sedge fiber, is already used in simple items like ropes, furniture, and paper, but has not yet been investigated as composite reinforcement for possible ballistic protection applications. Therefore, composite plates were prepared for the ballistic tests, based on the condition of 30 vol% alkali treated sedge fibers. A total of seven plates have been subjected to seven test-shots using 7.62 mm commercial ammunition. The fibers were embedded under pressure in the epoxy resin matrix and cured at room temperature for 24 hours. The tested specimens were examined by scanning electron microscopy. Besides, analysis of variance (ANOVA) was performed and the absorbed energy of all specimens were evaluated, based on a confidence level of 95%.
