Evaluation of Interfacial Fracture Toughness and Interfacial Shear Strength of Typha Spp. Fiber/Polymer Composite by Double Shear Test Method

Materials

Daiki Shiozawa¹  Yoshikazu Nakai¹  Sulaiman Thalib²  Samsul Rizal²  Ikramullah²  Syifaul Huzni²  H.P.S.Abdul Khalil³ 

[1] Department of Mechanical Engineering Kobe University, 1-1, Rokkodai, Nada, Kobe 657-8501, Japan;Department of Mechanical Engineering Syiah Kuala University, Darussalam, Banda Aceh 23111, Indonesia;School of Industrial Technology, University Sains Malaysia, Penang 11800, Malaysia;

关键词: Typha spp. fiber;    surface treatment;    interfacial fracture;    interfacial shear;   

DOI  :  10.3390/ma12142225

来源: DOAJ

【 摘 要 】

The aim of this paper is to evaluate the Mode II interfacial fracture toughness and interfacial shear strength of Typha spp. fiber/PLLA and Typha spp. fiber/epoxy composite by using a double shear stress method with 3 fibers model composite. The surface condition of the fiber and crack propagation at the interface between the fiber and the matrix are observed by scanning electron microscope (SEM). Alkali treatment on Typha spp. fiber can make the fiber surface coarser, thus increasing the value of interfacial fracture toughness and interfacial shear strength. Typha spp. fiber/epoxy has a higher interfacial fracture value than that of Typha spp. fiber/PLLA. Interfacial fracture toughness on Typha spp. fiber/PLLA and Typha spp. fiber/epoxy composite model specimens were influenced by the matrix length, fiber spacing, fiber diameter and bonding area. Furthermore, the interfacial fracture toughness and the interfacial fracture shear stress of the composite model increased with the increasing duration of the surface treatment.

【 授权许可】

Unknown