Numerical study of the critical impact velocity in shear (Q1302966)
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scientific article; zbMATH DE number 1342414
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Numerical study of the critical impact velocity in shear |
scientific article; zbMATH DE number 1342414 |
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Numerical study of the critical impact velocity in shear (English)
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16 February 2000
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We study the phenomenon of critical impact velocity (CIV) in shear. Deformation trapping due to thermoplastic instability caused by the propagation of plastic waves is the main physical reason for CIV in shear. We offer a simple analytical approach on how to estimate the value of CIV. A numerical study of impact shearing of a layer with a small geometric imperfection has been performed by the finite element code ABAQUS, and numerical results are verified by using available experimental results for VAR 4340 steel, \(\approx 50 \text{HRC}\), obtained by direct impact on modified double shear specimen.
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deformation trapping
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layer with geometric imperfection
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finite element code ABAQUS
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thermoplastic instability
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plastic waves
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geometric imperfection
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modified double shear specimen
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0.8498603
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0.84261584
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