AdamsBoneDensity

AdamsBoneDensity - you go down. 5 1 mm slice from vertebral...

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1 Mark F. Adams H.H. Bayraktar, T.M. Keaveny, P. Papadopoulos and Atul Gupta Ultrascalable Implicit Finite Element Analyses in Solid Mechanics with over a Half a Billion Degrees of Freedom ( excerpts )
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2 Trabecular Bone 5-mm Cube Cortical bone Trabecular bone
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3 Micro-Computed Tomography μ CT @ 22 μ m resolution 3D image Mechanical Testing E, ε yield , σ ult , etc. 2.5 mm cube 44 μ m elements μ FE mesh Methods: μ FE modeling
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4 the vertebral body you are showing is pretty healthy from a 80 year old female and it is a T-10 that is thoracic. So it is pretty close to the mid-spine. Usually research is done from T-10 downward to the lumbar vertebral bodies. There are 12 thoracic VB's and 5 lumbar. The numbers go up as you go down. the vertebral body you are showing is pretty healthy from a 80 year old female and it is a T-10 that is thoracic. So it is pretty close to the mid-spine. Usually research is done from T-10 downward to the lumbar vertebral bodies. There are 12 thoracic VB's and 5 lumbar. The numbers go up as
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Unformatted text preview: you go down. 5 1 mm slice from vertebral body 6 80 m w/ shell Vertebral Body With Shell Large deformation elast. 6 load steps (3% strain) Scaled speedup ~131K dof/processor 7 to 537 million dof 4 to 292 nodes IBM SP Power3 14 of 16 procs/node 7 Athena: Parallel FE ParMetis Parallel Mesh Partitioner (Univerisity of Minnesota) Prometheus Multigrid Solver FEAP Serial general purpose FE application (University of California) PETSc Parallel numerical libraries (Argonne National Labs) FE Mesh Input File Athena ParMetis FE input file (in memory) FE input file (in memory) Partition to SMPs Athena Athena ParMetis File File File File FEAP FEAP FEAP FEAP Material Card Silo DB Silo DB Silo DB Silo DB Visit Prometheus PETSc ParMetis METIS METIS METIS METIS pFEAP Computational Architecture Olympus 8 ParMetis partitions 9 131K dof / proc .47 Teraflops - 4088 processors...
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This note was uploaded on 12/27/2011 for the course CMPSC 240A taught by Professor Gilbert during the Fall '09 term at UCSB.

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AdamsBoneDensity - you go down. 5 1 mm slice from vertebral...

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