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Essential Fracture Work of Short Fiber Reinforced Polymer Blends
Polymer Engineering & Science
  • Shing Chung Josh Wong, University of Akron Main Campus
  • Yiu-Wing Mai
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Short glass fiber reinforced (SGFR) PA6,6/PP blends with 20 wt% styrene-ethylene/butylene-styrene triblock copolymers (SEBS) grafted with different levels of maleic anhydride (MA) were studied using both the essential work of fracture (EWF) and J-integral fracture toughness techniques. Good linearity was found between the plane strain specific fracture work, Wf, and the ligament length, l, in single-edge notched bend (SENB) specimens. The two fracture mechanics parameters were compared and there was good agreement between the J-integral fracture initiation toughness, JIC, and the specific essential fracture work, WIe. The skin-core morphology characteristic of injection molded short fiber reinforced thermoplastics (SFRT) was also revealed using the EWF approach.
Citation Information
Shing Chung Josh Wong and Yiu-Wing Mai. "Essential Fracture Work of Short Fiber Reinforced Polymer Blends" Polymer Engineering & Science Vol. 39 Iss. 2 (2004) p. 356 - 364
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