Mesh-Free Computational Shock and Fracture

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Taylor Anvil
Seth Neddermeyer Setup (8 det pts). Gray is HE, Blue is steel. An implosion problem Plastic Strain Numbers of neighbors automatically increase in region of plastic strain localization for stability. Plastic Strain Min=0 Max=1.5
Page 1 and 2: Mesh-Free Computational Shock and F
Page 3 and 4: Larry Libersky ! Interested in shoc
Page 5 and 6: Fast, Beautiful, Flexible, Mesh-Fre
Page 7 and 8: Collaborators
Page 9 and 10: Collaborators Vignjevic Campbell
Page 11 and 12: Why Particles We believe there is o
Page 13 and 14: The Binary System C444 Cygni
Page 15 and 16: Our History 1990: SPH With Strength
Page 17 and 18: + •Conceptual Simplicity •Extra
Page 19 and 20: Dual Particle Dynamics Dual space o
Page 21 and 22: dU dt " i The use of MLS fits. SPH
Page 23 and 24: Finding Neighbors; Inverse Hull Ori
Page 25 and 26: ! , ! Q = " hU 1 + Artificial Visco
Page 27 and 28: DPD: Sedov-Taylor Density Particle
Page 29 and 30: u # Stability of DPD (Randles ( Ran
Page 31 and 32: 1 2 3 4 Stability Boundaries for DP
Page 33 and 34: Stability Eigenstate for Particle i
Page 35 and 36: How do we relate neighbors to stabi
Page 37 and 38: Updating Positions ! It seems like
Page 39 and 40: Schematic of Velocity Update MLS Li
Page 41 and 42: DPD for 3D Solids ! Smoothness of f
Page 43: Very Fast Anvil (1km/s)
Page 48 and 49: DPD: Cylinder test
Page 50 and 51: Time=0 SPH HRam Time=200 µ s
Page 52 and 53: ! Represents class of high energy s
Page 54 and 55: LANL 40mm x 2mm 4340 steel SPH simu
Page 56 and 57: MAGI: Smoothed Particle Hydrodynami
Page 58 and 59: Summary ! Mesh-free particle method
Page 60: Space - What is it? Space is not a

Mesh-Free Computational Shock and Fracture

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