Accounting for the effect of local punching at the bar/ specimen interface in SHPB experiments - Archive ouverte HAL
Communication Dans Un Congrès Année : 2009

Accounting for the effect of local punching at the bar/ specimen interface in SHPB experiments

Résumé

The object of this work is to provide a displacement correction for the local punching due to an axial loading at the end of a bar. For this purpose, an analytical calculation of the dynamic 3-D indentation of an elastic isotropic semi-infinite bar is carried out. It provides a first-order correction for the displacement obtained through the 1-D wave analysis commonly used in SHPB processing. This correction applies to the displacements as they are calculated at both ends of a specimen sandwiched between the two bars of a SHPB device. It improves the results obtained for the dynamic behavior of the specimen, in particular at early instants of loading.
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hal-00425506 , version 1 (29-04-2022)

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Kamal Safa, Gérard Gary. Accounting for the effect of local punching at the bar/ specimen interface in SHPB experiments. DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading, Sep 2009, Brussels, Belgium. pp.81-87, ⟨10.1051/dymat/2009011⟩. ⟨hal-00425506⟩
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