Janna/Hook_1498

3D model of a steel hook with tetrahedral finite elements
Name Hook_1498
Group Janna
Matrix ID 2546
Num Rows 1,498,023
Num Cols 1,498,023
Nonzeros 59,374,451
Pattern Entries 60,917,445
Kind Structural Problem
Symmetric Yes
Date 2011
Author C. Janna, M. Ferronato
Editor T. Davis
Structural Rank 1,498,023
Structural Rank Full true
Num Dmperm Blocks 30,001
Strongly Connect Components 30,001
Num Explicit Zeros 1,542,994
Pattern Symmetry 100%
Numeric Symmetry 100%
Cholesky Candidate yes
Positive Definite yes
Type real
Download MATLAB Rutherford Boeing Matrix Market
Notes 
Authors: Carlo Janna and Massimiliano Ferronato                
                                                               
Symmetric Positive Definite Matrix                             
# equations:   1498023                                         
# non-zeroes: 60917445                                         
Problem description: Structural problem                        
                                                               
The matrix Hook_1498 is obtained from a 3D mechanical problem  
discretizing a steel hook with tetrahedral Finite Elements. The
computational grid consists of regularly shaped elements with  
three displacement unknowns associated to each node.