Creep and Fatigue Strengths of Unsaturated Polyester Composite Materials Filled with Particle Fillers

DOI
  • YAMAGUCHI Yukisaburo
    Department of Mechanical Engineering, Faculty of Engineering, Kogakuin University
  • SATO Sadao
    Department of Mechanical Engineering, Faculty of Engineering, Kogakuin University
  • KONDO Itsuo
    Department of Mechanical Engineering, Faculty of Engineering, Kogakuin University
  • BEPPU Tomohiro
    Department of Mechanical Engineering, Faculty of Engineering, Kogakuin University
  • HASEBE Shigeyuki
    Department of Mechanical Engineering, Faculty of Engineering, Kogakuin University

Bibliographic Information

Other Title
  • 粒状充てん材を含む不飽和ポリエステル複合材料のクリープおよび疲れ耐久性

Abstract

Effects of the size, content and coupling agents' treatment of particle fillers on the tensile creep and flexural fatigue strengths of the unsaturated polyester (UP) composite materials containing glass beads were investigated experimentally, and were also discussed on the some mechanical properties of those materials. In the experiments, tensile creep test was performed until 104 minutes under the temperature of 23±2°C, and flexural fatigue test (JIS-K7119) by plane bending was performed until 107cycles under 25±5°C<BR>The results obtained are as follows ;<BR>1) Tensile creep strength at 104 minutes of the UP composites were decreased about 20-40% with increasing filler content, and effects of the filler size upon creep strength is unclear in the range of 0.105-0.420mm in diameter.<BR>2) In the creep tests, the ratio of creep rupture stress σc at 104 minutes to static tensile strength σO was 0.64-0.88 in those composites.<BR>3) Tensile creep strength of the UP composites containing 30wt% of fillers (0.105mm and 0.420mm in diameter) treated by coupling agent was about 10-15% larger than that untreated, and the values of σc/σO of those composites was 0.88-0.89.<BR>4) Flexural fatigue strength of the UP composites was increased about 1.5-2 times by containing 20-45 wt% of fillers, and increased with decreasing filler size in the range of 0.105-0.420 mm in diameter.<BR>5) Flexural fatigue strength of the UP composites containing 30wt% of fillers treated by coupling agent was about 30-60% larger than that untreated.

Journal

Details 詳細情報について

  • CRID
    1390282680066234368
  • NII Article ID
    130006886000
  • DOI
    10.11364/networkpolymer1980.3.57
  • ISSN
    21865361
    03884384
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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