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Identification of elastic/visco-plastic material constants under impact loading
Tokyo Institute of Technology, Department of Mechanical and Environmental Informatics.
Tokyo Institute of Technology, Department of Mechanical and Environmental Informatics.
Tokyo Institute of Technology, Department of Mechanical and Environmental Informatics.
Luleå tekniska universitet.
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2000 (Japanska)Ingår i: IUTAM Symposium on Field Analysis for Determination of Material Parameters - Experimental and Numerical Aspects :: proceedings of the IUTAM Symposium held in Abisko National Park, Kiruna, Sweden, July 31 - August 4, 2000 / [ed] P. Ståhle, Dordrecht: Encyclopedia of Global Archaeology/Springer Verlag, 2000Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

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

Ort, förlag, år, upplaga, sidor
Dordrecht: Encyclopedia of Global Archaeology/Springer Verlag, 2000.
Serie
Solid mechanics and its applications, ISSN 0925-0042 ; 109
Nationell ämneskategori
Teknisk mekanik
Forskningsämne
Hållfasthetslära
Identifikatorer
URN: urn:nbn:se:ltu:diva-37655Lokalt ID: bbc5c1a0-fa0d-11db-b2dd-000ea68e967bISBN: 1-402-01283-7 (tryckt)OAI: oai:DiVA.org:ltu-37655DiVA, id: diva2:1011153
Konferens
IUTAM Symposium on field analysis for determination of material parameters experimental and numerical aspects : 31/07/2000 - 04/08/2000
Anmärkning
Godkänd; 2000; 20070504 (cira)Tillgänglig från: 2016-10-03 Skapad: 2016-10-03 Senast uppdaterad: 2017-11-25Bibliografiskt granskad

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Sundin, Karl-Gustaf

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