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Energy absorption characteristics of aluminium alloy AA7XXX and AA6061 tubes subjected to static and dynamic axial load
Chebolu Lakshmana Rao
Published in Taylor and Francis Ltd.
2014
Volume: 19
   
Issue: 2
Pages: 139 - 152
Abstract
In this paper, compression behaviour and energy absorption of aluminium alloy AA7005 and AA7003 tubes were investigated both experimentally and numerically. LS-DYNA software was used for the static and dynamic simulations of AA7005, AA7003, AA6061 and high strength steel (DP800) tubes of equal dimensions. True stress-plastic strain curves at different strain rates from the literature were used in the dynamic simulations of AA7003 and DP800 tubes. Dynamic simulations were done with drop velocity from 7 to 15 m/s to understand the inertia and strain rate effects on energy absorption. The peak loads and energy absorption values between experimental compression results and numeral simulation are found to be in good agreement. The simulation results show the energy absorption characteristics of AA7XXX tubes are better than that of AA6061 and DP800 tubes based on specific energy. © 2014 Taylor & Francis.
About the journal
JournalData powered by TypesetInternational Journal of Crashworthiness
PublisherData powered by TypesetTaylor and Francis Ltd.
ISSN13588265
Open AccessNo
Concepts (15)
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    Aluminum alloys
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    Compaction
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    Computer simulation
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    Energy absorption
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    Steel
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    Strain rate
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    ABSORPTION CHARACTERISTICS
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    COMPRESSION BEHAVIOURS
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    DROP VELOCITY
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    LOW VELOCITIES
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    NUMERAL SIMULATIONS
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    Specific energy
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    Strain rate effect
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    STRESS-PLASTIC STRAIN CURVE
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    Tubes (components)