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- W2002164637 abstract "In this work, the stress-point approach, which was developed to address tension instability and improve accuracy in Smoothed Particle Hydrodynamics (SPH) methods, is further extended and applied for one-dimensional (1-D) problems. Details of the implementation of the stress-point method are also given. A stability analysis reveals a reduction in the critical time step by a factor of 1/√2 when the stress points are located at the extremes of the SPH particle. An elementary damage law is also introduced into the 1-D formulation. Application to a 1-D impact problem indicates far less oscillation in the pressure at the interface for coarse meshes than with the standard SPH formulation. Damage predictions and backface velocity histories for a bar appear to be quite reasonable as well. In general, applications to elastic and inelastic 1-D problems are very encouraging. The stress-point approach produces stable and accurate results. © 1997 by John Wiley & Sons, Ltd." @default.
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- W2002164637 date "1997-07-15" @default.
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- W2002164637 title "STRESS POINTS FOR TENSION INSTABILITY IN SPH" @default.
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- W2002164637 doi "https://doi.org/10.1002/(sici)1097-0207(19970715)40:13<2325::aid-nme161>3.0.co;2-8" @default.
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