Using Split Hopkinson Pressure Bars to Perform Large Strain Compression Tests on Neoprene at Intermediate and High Strain Rates

Abstract:

The strain rate sensitivity of neoprene is characterized using a modified split Hopkinson pressure bar (SHPB) system at intermediate (50 s^-1, 100 s^-1) and high (500 s^-1, 1000 s^-1) strain rates. We used two quartz piezoelectric force transducers that were sandwiched between the specimen and experimental bars respectively to directly measure the weak wave signals. A laser gap gage was employed to monitor the deformation of the sample directly. Three kinds of neoprene rubbers (Shore hardness: SHA60, SHA65, and SHA70) were tested using the modified split Hopkinson pressure bar. Experimental results show that the modified apparatus is effective and reliable for determining the compressive stress-strain responses of neoprene at intermediate and high strain rates.

• Periodical: Advanced Materials Research (Volumes 631-632)
• Pages: 458-462
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.631-632.458
• Online since: January 2013
• Authors: Peng Duo Zhao, Yu Wang, Jian Ye Du, Lei Zhang, Zhi Peng Du, Fang Yun Lu
• Keywords: Intermediate Strain, Neoprene, SHPB, Soft Materials

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