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Comparison of Porter-Gould constitutive model with compression test data for HTPB/Sugar

Abstract:

We have been developing the physically based QinetiQ Porter-Gould (P-G) model for the mechanical response of PBXs over a number of years and applying it to the solution of real scenarios involving impact and blast. The main difficulty with these models is predicting the intermediate strain rate regime where the relaxation time for the polymer is of the same order as the duration of the loading (e.g. as in a Hopkinson bar test). The other main issue is the ability of the model to predict the s...

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Publication status:
Published

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Publisher copy:
10.1063/1.2833239

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Host title:
SHOCK COMPRESSION OF CONDENSED MATTER - 2007, PTS 1 AND 2
Volume:
955
Pages:
777-780
Publication date:
2007-01-01
DOI:
EISSN:
1551-7616
ISSN:
0094-243X
Source identifiers:
64651
ISBN:
9780735404694
Keywords:
Pubs id:
pubs:64651
UUID:
uuid:423f1406-bcbb-48a1-96d7-304d27f34cb3
Local pid:
pubs:64651
Deposit date:
2012-12-19

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