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High Strain Rate Testing of Sandwich Core Materials

Vural, M. and Ravichandran, G. (2002) High Strain Rate Testing of Sandwich Core Materials. In: Recent Advances in Experimental Mechanics: In Honor of Isaac M. Daniel. Kluwer Academic Publishers , Dordrecht, pp. 31-42. ISBN 978-1-4020-0683-8.

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Mechanical response of a cellular sandwich core material, balsa wood, is investigated over its entire density spectrum from 55 to 380 kg/m^3. Specimens were compression loaded along the grain direction in both quasi-static and dynamic strain rates from 10^(−3) to 10^3 s^(−1). Results show that while the initial failure stress is very sensitive to the rate of loading, plateau (crushing) stress remains unaffected by the strain rate. Kinematics of deformation and micro inertial effects are suggested and discussed to explain this different behavior. Specific energy dissipation capacity of balsa wood was measured and determined to be comparable with those of fiber-reinforced polymers. As in quasi-static loading, buckling and kink band formation were identified to be two major failure modes in dynamic loading as well.

Item Type:Book Section
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Ravichandran, G.0000-0002-2912-0001
Additional Information:© 2002 Kluwer Academic Publishers. This research was supported by the Office of Naval Research (Dr. Y. D. S. Rajapakse, Scientific Officer) and is gratefully acknowledged. MV gratefully acknowledges the support provided by TÜBİTAK (The Scientific and Technical Research Council of Turkey) through the NATO Advanced Science Fellowship.
Funding AgencyGrant Number
Office of Naval Research (ONR)UNSPECIFIED
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu (TÜBİTAK)UNSPECIFIED
North Atlantic Treaty Organization (NATO)UNSPECIFIED
Subject Keywords:Plateau Stress; Energy Dissipation Capacity; Progressive Deformation; Quartz Single Crystal; Balsa Wood
Record Number:CaltechAUTHORS:20191008-090739158
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99139
Deposited By: Tony Diaz
Deposited On:08 Oct 2019 18:09
Last Modified:16 Nov 2021 17:44

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