Proceedings of the Acoustical Society of Korea Conference (한국음향학회:학술대회논문집)

The Acoustical Society of Korea (한국음향학회)
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Measuring of Loss factor and Young's modulus of Plastics with Temperature Variation

온도변화에 따른 플라스틱의 손실계수와 Young 률의 측정

  • Shin Su Hyun (Acoustics & Vibration Group, Korea Research Institute of Standards and Science) ;
  • Jung Sung Soo (Acoustics & Vibration Group, Korea Research Institute of Standards and Science) ;
  • Lee Yong Bong (Acoustics & Vibration Group, Korea Research Institute of Standards and Science) ;
  • Lee Doo Hee (Acoustics & Vibration Group, Korea Research Institute of Standards and Science)
  • 신수현 (한국표준과학연구원 음향진동그룹) ;
  • 정성수 (한국표준과학연구원 음향진동그룹) ;
  • 이용봉 (한국표준과학연구원 음향진동그룹) ;
  • 이두희 (한국표준과학연구원 음향진동그룹)
  • Published : 2004.11.01
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Abstract

It is well known that the loss factor and Young's modulus are fundamental mechanical properties of materials. In this study. the dynamic characteristics of plastics are evaluated by using two different standard test methods which are ASTM E 756 and ISO 6721. Polycarbonate and acrylonitrile butadiene styrene were used as test specimens. In order to evaluate vibration of damping properties with temperature, we measured loss factor and Young's modulus of the specimens the temperature range between $-10^{\circ}C$ and $60^{\circ}C$. The Young's modulus for polycarbonate decreased significantly as increasing temperature, while the loss factor increased. However, the Young's modulus and loss factor of acrylonitrile butadiene styrene are varied somewhat with temperature.

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