CalculiX USER’S MANUAL - CalculiX GraphiX, Version 2.7 - Klaus Wittig February 18, 2014 Figure 1: A complex model made from scratch using second order brick elements 1 Contents 1 Introduction 7 2 Concept 7 3 File Formats 8 4 Getting Started 9 5 Program Parameters 13 6 Input Devices 14 6.1 Mouse ................................. 14 6.2 Keyboard ............................... 15 7 Menu 16 7.1 Datasets................................ 16 7.1.1 Entity ............................. 17 7.2 Viewing ................................ 17 7.2.1 ShowElementsWithLight . 17 7.2.2 ShowBadElements . 17 7.2.3 Fill............................... 17 7.2.4 Lines.............................. 17 7.2.5 Dots.............................. 18 7.2.6 ToggleCullingBack/Front . 18 7.2.7 ToggleModelEdges . 18 7.2.8 ToggleElementEdges . 18 7.2.9 ToggleSurfaces/Volumes . 18 7.2.10 Toggle Move-Z/Zoom . 18 7.2.11 Toggle Background Color . 19 7.2.12 ToggleVector-Plot . 19 7.2.13 ToggleAdd-Displacement . 19 7.3 Animate................................ 19 7.3.1 Start.............................. 19 7.3.2 Tune-Value .......................... 19 7.3.3 StepsperPeriod ....................... 20 7.3.4 TimeperPeriod ....................... 20 7.3.5 ToggleRealDisplacements . 20 7.3.6 ToggleDatasetSequence. 20 7.4 Frame ................................. 20 7.5 Zoom ................................. 20 7.6 Center................................. 20 7.7 Enquire ................................ 21 7.8 Cut .................................. 21 7.9 Graph ................................. 21 7.10Orientation .............................. 21 2 7.10.1 +xView............................ 21 7.10.2 -xView ............................ 21 7.10.3 +yView............................ 21 7.10.4 -yView ............................ 21 7.10.5 +zView............................ 21 7.10.6 -zView ............................ 22 7.11Hardcopy ............................... 22 7.11.1 Tga-Hardcopy ........................ 22 7.11.2 Ps-Hardcopy ......................... 22 7.11.3 Gif-Hardcopy . 22 7.11.4 Png-Hardcopy ........................ 22 7.11.5 StartRecordingGif-Movie. 22 7.12Help .................................. 22 7.13Quit .................................. 23 8 Commands 23 8.1 area .................................. 23 8.2 asgn .................................. 24 8.3 bia................................... 24 8.4 body.................................. 25 8.5 call................................... 26 8.6 cntr .................................. 26 8.7 comp.................................. 26 8.8 copy .................................. 27 8.9 corrad ................................. 28 8.10csysa.................................. 28 8.11cut................................... 28 8.12del................................... 29 8.13div................................... 30 8.14ds ................................... 31 8.15elem .................................. 32 8.16elty................................... 32 8.17enq................................... 33 8.18eqal .................................. 34 8.19exit................................... 35 8.20flip................................... 35 8.21flpc................................... 35 8.22font .................................. 35 8.23frame ................................. 35 8.24gbod.................................. 36 8.25gonly.................................. 36 8.26graph ................................. 36 8.27grps .................................. 38 8.28gsur .................................. 38 8.29gtol .................................. 39 8.30hcpy.................................. 39 3 8.31help .................................. 39 8.32lcmb.................................. 40 8.33length ................................. 40 8.34line................................... 40 8.35lnor .................................. 41 8.36mata.................................. 41 8.37map .................................. 41 8.38mats.................................. 42 8.39max .................................. 42 8.40merg.................................. 42 8.41mesh.................................. 43 8.42mids.................................. 44 8.43min .................................. 44 8.44minus ................................. 44 8.45mm .................................. 45 8.46move.................................. 45 8.47movi.................................. 46 8.48msg .................................. 47 8.49node.................................. 47 8.50nurl .................................. 47 8.51nurs .................................. 47 8.52ori ................................... 48 8.53plot .................................. 48 8.54plus .................................. 49 8.55pnt................................... 50 8.56prnt .................................. 50 8.57proj .................................. 52 8.58qadd.................................. 52 8.59qali................................... 53 8.60qbia .................................. 53 8.61qbod.................................. 54 8.62qcnt .................................. 54 8.63qcut .................................. 54 8.64qdel .................................. 55 8.65qdis .................................. 56 8.66qdiv .................................. 56 8.67qenq.................................. 57 8.68qfil................................... 57 8.69qflp................................... 58 8.70qint .................................. 59 8.71qlin................................... 59 8.72qmsh.................................. 60 8.73qnor .................................. 61 8.74qpnt .................................. 61 8.75qnod.................................. 62 8.76qrem.................................. 62 4 8.77qseq .................................. 62 8.78qshp .................................. 63 8.79qspl .................................. 63 8.80qsur .................................. 63 8.81qtxt .................................. 64 8.82quit .................................. 65 8.83read .................................. 66 8.84rep................................... 68 8.85rnam.................................. 68 8.86rot................................... 68 8.87save .................................. 69 8.88scal................................... 69 8.89send .................................. 69 8.90seqa .................................. 80 8.91seql .................................. 81 8.92seta .................................. 81 8.93setc .................................. 82 8.94sete .................................. 83 8.95seti................................... 83 8.96seto .................................. 83 8.97setr................................... 84 8.98shpe .................................. 84 8.99split .................................. 84 8.100steps.................................. 85 8.101surf .................................. 85 8.102swep.................................. 85 8.103sys................................... 86 8.104text .................................. 86 8.105tra ................................... 87 8.106trfm .................................. 87 8.107ucut .................................. 88 8.108view .................................. 88 8.109volu .................................. 89 8.110zap................................... 89 8.111zoom.................................. 89 9 Element Types 90 10 Result Format 96 10.1 ModelHeaderRecord . 97 10.2 UserHeaderRecord ......................... 97 10.3 NodalPointCoordinateBlock. 97 10.4 ElementDefinitionBlock . 98 10.5 ParameterHeaderRecord . 99 10.6 NodalResultsBlock . 99 5 11 Pre-defined Calculations 102 11.1 VonMisesEquivalentStress. 102 11.2 PrincipalStresses. 102 11.3 TrescaStresses . 103 11.4 CylindricalStresses. 103 12 User-Functions 103 A Known Problems 103 A.1 Programisnotresponding. 103 A.2 DuringMeshing............................ 103 A.3 Programgeneratesasegmentationfault . 104 B Tips and Hints 104 B.1 Howtochangetheformatofthemoviefile . 104 B.2 Howtodefineasetofentities . 104 B.3 How to enquire node numbers and values at certain locations . 105 B.4 Howtoselectonlynodesonthesurface . 105 B.5 Howtogenerateatime-historyplot . 105 B.6 Howthemeshisrelatedtothegeometry. 106 B.7 Howtochangetheorderofelements . 107 B.8 Howtoconnectindependentmeshes . 107 B.9 Howtodefineloadsandconstraints . 107 B.10Howtomaploads .......................... 108 B.11Howtoruncgxinbatchmode . 110 B.12Howtodealwithcad-geometry . 110 B.13Howtocheckaninputfileforccx. 113 B.14RemarksConcerningAnsys . 114 B.15RemarksConcerningCodeAster . 114 B.16RemarksConcerningdolfyn . 115 B.17RemarksConcerningDunsandIsaac . 115 B.18RemarksConcerningNastran . 115 B.19RemarksConcerningNETGEN . 116 B.20RemarksConcerningOpenFOAM. 116 B.21RemarksConcerningSamcef. 117 C Simple Examples 119 C.1 Disc ..................................119 C.2 Cylinder................................ 120 C.3 Sphere.................................122 C.4 Sphere(Volume) ........................... 123 C.5 Airfoilforcfdcodes . 124 6 1 Introduction This document is the description of CalculiX GraphiX (cgx). This program is designed to generate and display finite elements (FE) and results coming from CalculiX CrunchiX (ccx). If you have any problems using cgx, this document should solve them. If not, you might send an email to the author [3]. The Con- cept and File Format sections give some background on functionality and mesher capabilities. The Getting Started section describes how to run the verification examples