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Träfflista för sökning "WAKA:kon ;spr:jpn;srt2:(2000-2004)"

Search: WAKA:kon > Japanese > (2000-2004)

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1.
  • Aoki, S., et al. (author)
  • Identification of elastic/visco-plastic material constants under impact loading
  • 2000
  • In: IUTAM Symposium on Field Analysis for Determination of Material Parameters - Experimental and Numerical Aspects. - Dordrecht : Encyclopedia of Global Archaeology/Springer Verlag. - 1402012837
  • Conference paper (peer-reviewed)abstract
    • A method for identifying the material constants of an elastic/visco-plastic meterial under tensile impact loading is proposed. In this method, the Kalman filter and the finite element method are used together with a few test data. To obtain data for high strain rates, notched specimens are employed, because arbitrarily shaped specimens are available in this method. To increase the accuracy of identification, a test under a relatively low strain rate is needed in addition to a test under a high strain rate. The optimum strain rate is determined in such a way that the largest eigen value of the covariance matrix of the estimated parameters becomes minimum. A numerical simulation in performed to demonstrate the validity and usefulness of this method
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