Impact testing of polymeric foam using Hopkinson bars and digital image analysis

@inproceedings{Liu2014ImpactTO,
  title={Impact testing of polymeric foam using Hopkinson bars and digital image analysis},
  author={Jiaqing Liu and Dominique Saletti and St{\'e}phane Pattofatto and Han Xiao Zhao},
  year={2014}
}
Abstract The present investigation aims at testing polymeric foam under impact loading using large diameter nylon Hopkinson bars and optical field measurements. Accurate average stress-strain relations can be obtained when soft large diameter polymeric pressure bars and the appropriate data processing are used. However, as there are generally no homogeneous strain and stress fields for polymeric foams, an optical field observation is needed. In contrast to quasi-static tests where the digital… CONTINUE READING

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