Low-velocity impact performance of UHMWPE composites consolidated with carbide particles

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GÜRGEN S.

ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING, cilt.20, sa.2, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 20 Sayı: 2
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1007/s43452-020-00042-0
  • Dergi Adı: ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Central & Eastern European Academic Source (CEEAS), Compendex, INSPEC
  • Anahtar Kelimeler: UHMWPE, Carbide filler, Impact behavior, Thermography, MOLECULAR-WEIGHT POLYETHYLENE, SHEAR THICKENING FLUID, BALLISTIC PERFORMANCE, STAB RESISTANCE, WEAR BEHAVIOR, FRICTION
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

Ultra-high molecular weight polyethylene (UHMWPE) is one of important materials utilized against impacting threats. In this work, bulk UHMWPE specimens were fabricated in a compression molding chamber, and molding parameters such as pressure and temperature were varied in the specimen preparation stage to investigate the effect of molding parameters on the impact performance. In addition, silicon carbide fillers were included in the UHMWPE matrix to enhance the anti-impact properties of the specimens. From the results, high molding pressure provides enhanced impact resistance due to improved microstructural consolidation. On the other hand, molding temperature just above the melting point of polymer is much beneficial to the anti-impact behavior of the structures. Carbide fillers lead to an increase in the frictional interaction between the impactor and composites and thereby enhancing the impact resistance of the structures. However, the gain in the protective properties performance is restricted up to a certain amount of carbide loading because at higher filler ratios, the composites change from ductile to brittle characteristics. For this reason, crack growth susceptibility develops in the composites at excessive carbide loadings.