| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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A Void Growth Model Considering the Bauschinger Effect and Its Application to Spall Fracture |
| CHEN Qian-Yi1,2, LIU Kai-Xin1,2**
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1LTCS and Department of Mechanics & Aerospace Engineering, College of Engineering, Peking University, Beijing 100871
2Center for Applied Physics and Technology, Peking University, Beijing 100871
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| Cite this article: |
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CHEN Qian-Yi, LIU Kai-Xin 2011 Chin. Phys. Lett. 28 064602 |
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Abstract A void growth model considering the Bauschinger effect (BE) is proposed for ductile materials sustaining impact loading. Numerical simulations of two high-velocity impact problems are carried out by our newly developed Eulerian programs. The proposed model is tested by a plate impact problem and a qualitative agreement with the experiment is obtained. Then a more complicated problem, a plate impacted by a spherical projectile at a velocity of 6.0 km/s, is simulated. The numerical results are in better accordance with the experimental data when the BE is considered. The proposed model reveals that the BE has an obvious effect on the spall process.
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| Keywords:
46.15.-x
62.20.mm
64.30.Ef
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Received: 10 March 2011
Published: 29 May 2011
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| PACS: |
46.15.-x
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(Computational methods in continuum mechanics)
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62.20.mm
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(Fracture)
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64.30.Ef
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(Equations of state of pure metals and alloys)
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