STUDY ON THE EFFECT OF STRAIN RATE AND TEMPERATURE ON THE MECHANICAL BEHAVIOR OF POLYPROPYLENE AND THERMOPLASTIC OLEFIN

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초록

In this study, the strain rate dependent tensile properties of Polypropylene (PP) and Thermoplastic olefin (TPO) were investigated under the high strain rate by using the Split Hopkinson Pressure Bar (SHPB). The SHPB is the most widely used apparatus to characterize dynamic mechanical behavior of materials at high strain rates between 100/s and 10, 000/s. Also, the dynamic properties of TPO and PP were measured under temperature from -35 ℃ to 85 ℃. The SHPB test is based on the wave propagation theory which was developed to give the stress, strain and strain rate in the specimen using the strains measured in the incident and transmission bars. In addition, to verify the strain data obtained from SHPB, the strain distribution of the specimen was photographed with a high-speed camera and the strain data obtained through the Digital Image Correlation (DIC) and compared with the strain value from the SHPB test.

키워드

High strain ratePolypropylene (PP)Split Hopkinson Pressure Bar (SHPB)Thermoplastic Olefin(TPO)Bridge decksDynamicsImage correlationMechanical testingOlefinsPolypropylenesReinforced plasticsStrain rateWave propagationHigh speed camerasEffects of strain ratesHigh-strain-rateMechanical behaviorPolypropyleneSplit hopkinson pressure barSplit Hopkinson Pressure Bar testSplit Hopkinson pressure barsStrain dataStrain-temperatureThermoplastic olefin
제목
STUDY ON THE EFFECT OF STRAIN RATE AND TEMPERATURE ON THE MECHANICAL BEHAVIOR OF POLYPROPYLENE AND THERMOPLASTIC OLEFIN
저자
Lee, Se-MinKim, Gyu-WonHan, In-SooKim, Hak Sung
발행일
2022-06
유형
Conference Paper
저널명
ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability
1
페이지
479 ~ 485