Theoretical and computational modelling of instrumented indentation of viscoelastic composites <DQ 3LQJ &DRD .H /LQ &KHQ Applied Mechanics Lab, Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China Abstract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eywords ,QGHQWDWLRQ YLVFRHODVWLF FRPSRVLWHV ILQLWH HOHPHQW VLPXODWLRQ D &RUUHVSRQGLQJ DXWKRU 7HO ID[ E-mail address FDR\DQSLQJ#WVLQJKXD HGX FQ < 3 &DR Proceedings of the SEM Annual Conference June 7-10, 2010 Indianapolis, Indiana USA ©2010 Society for Experimental Mechanics Inc. 101 for Experimental Mechanics Series 15, DOI 10.1007/978-1-4419-9794-4_17, © The Society for Experimental Mechanics, Inc. 2011 T. Proulx (ed.), Time Dependent Constitutive Behavior and Fracture/Failure Processes, Volume 3, Conference Proceedings of the Society
RkJQdWJsaXNoZXIy MTMzNzEzMQ==