DEFORM-3D Keyword Documentation Part 12 ppt

STPINC STPINC StepInc OPERAND DESCRIPTION DEFAULT StepInc Increment of solution steps saved to the database 1 DEFINITION STPINC specifies the frequency with which time step solutions are saved to the DEFORM database. REMARKS Only time step solutions which are either multiples of StepInc , remeshing steps, or ending steps will be saved in the database. For example, the recorded step numbers for a simulation that ran a total of 20 steps, was remeshed after step 10 and had StepInc = 3 would be:-1, 3, 6, 9, 10, - 11, 12, 15, 18, 20. Applicable simulation types: Isothermal Deformation Heat Transfer Non-Isothermal Deformation RELATED TOPICS Step parameters, DEFORM database Keywords: STPDEF, DEMAX, DSMAX, DTMAX, DVMAX, SLDERR STRAIN STRAIN Object, Ndata, DefStrain Element(1), Strain(1) : : Element(Ndata), Strain(Ndata) OPERAND DESCRIPTION DEFAULT Object Object number None Ndata Number of element/strain pairs None DefStrain Default elemental strain of all elements not listed 0.0 in the element/strain pairs Element(i) Element number of ith data pair None Strain(i) Elemental strain of ith data pair 0.0 DEFINITION STRAIN specifies the value of total effective strain at the centroid of each element. REMARKS Elemental strains are interpolated between meshes during remeshing procedures. Applicable object types: Plastic, Elastoplastic, Porous STRESS STRESS Object, Ndata,DefStress Element(1), X1(1), X2(1), X3(1), X4(1), X5(1), X6(1) : : : : : Element(Ndata), X1(Ndata), X2(Ndata), X3(Ndata), X4(Ndata), X5(Ndata), X6(Ndata) OPERAND DESCRIPTION DEFAULT Object Object Number None Ndata No. of Elements None DefStress Default Stress value 0.0 Element(i) Element number of i th data set None X1(i) Sigma X of i th data set None X2(i) Sigma Y of i th data set None X3(i) Sigma Z of i th data set None X4(i) Tau XY of i th data set None X5(i) Tau YZ of i th data set None X6(i) Tau XZ of i th data set None DEFINITION STRESS Defines the stress tensors of each element of an object. X1 is the value of Sigma X ( x ), X2 is Sigma Y ( y ), X3 is Sigma Z ( z ), X4 is Tau XY ( xy ), X5 is Tau XY (  ) and X6 is Tau XY ( xz ) REMARKS Applicable object types: Elastoplastic The stress tensor, S, of the object to the left is represented by the matrix [  x ,  xy ,  xz ,  yx ,  y ,  yz ,  zx ,  zy ,  z ] STROKE STROKE Object, XStroke, YStroke, ZStroke OPERAND DESCRIPTION DEFAULT Object Object Number None XStroke Object stroke in X 0.0 YStroke Object stroke in Y 0.0 ZStroke Object stroke in Z 0.0 DEFINITION STROKE specifies the stroke of objects with a movement control boundary constraint (MOVCTL). REMARKS STROKE is the measurement of displacement of objects. The stroke of the primary object (PDIE) can be used to define movement control  simulation time step size (DSMAX)  object movement (MOVCTL)  simulation termination criteria (SMAX, VMIN, LMAX) Applicable object types: Rigid, Elastic, Plastic, Elastoplastic, Porous RELATED TOPICS Stroke Keywords: PDIE, MOVCTL, DSMAX, SMAX, VMIN, LMAX STYPE STYPE SType OPERAND DESCRIPTION DEFAULT Stype Simulation Type 1 = 1 Largrangian Incremental = 2 Largrangian Discrete (obsolete) = 3 ALE Machining = 4 ALE Extrusion = 5 ALE Rolling = 6 ALE Ring-Rolling DEFINITION STYPE specifies the simulation type which is to be used. REMARKS Applicable simulation types: Isothermal Deformation Heat Transfer Non-Isothermal Deformation SYMSUF SYMSUF Object, SymSufNo, Type OriginX, OriginY, OriginZ DirX, DirY, DirZ OPERAND DESCRIPTION DEFAULT Object Object Number None SymSufNo Symmetric plane No. None Type Symmetric plane type (not used now) None OriginX, OriginY, OriginZ Coordinates of a point on the plane None DirX, DirY, DirZ Normal of the plane DEFINITION SYMSUF specifies a symmetric plane used in defining boundary conditions of a object. REMARKS Applicable object types: Rigid, Elastic, Plastic, Elastoplastic, Porous THRCND THRCND Material , Ftype , Conductivity or THRCND Material , Ftype , Ndata Temp(1) , Conductivity(1) : : Temp(Ndata) , Conductivity(Ndata) or THRCND Material, Ftype, N1, N2 Temp(1) Temp(Ndata) Atom(1) Atom(Ndata) OPERAND DESCRIPTION DEFAULT Material Material number None Ftype Function type: None 0 = Constant thermal conductivity 1 = Temperature dependent thermal conductivity 2 = Density dependent thermal conductivity (*) 3 = Atom dependent thermal conductivity (*) 4 = Temperature and Atom dependent thermal conductivity (*) Conductivity Thermal conductivity None N1 Number of data pairs for the function or temp Data when method=4 N2 Number of atom data for method=4 Ndata Number of temp/thermal conductivity data pairs None Temp(i) Temperature of ith data pair None Conductivity(i) Thermal conductivity of ith data pair None Density(i) Density dependent thermal conductivity None Atom(i) Atom dependent thermal conductivity None (*) denotes that the function type is only valid for the Heat Treatment Module. DEFINITION THRCND specifies the thermal conductivity of a particular material. EXAMPLES REMARKS The thermal conductivity may be specified as a constant value as a set of discrete temperature/conductivity data pairs. If Ftype = 0 use the operand Conductivity . If Ftype = 1 use the operands Ndata , Temp(i) , Conductivity(i) . Each temperature/thermal conductivity pair should be provided on a separate line. When temperatures lie within the specified data range, linear interpolation is used to determine the corresponding thermal conductivity. When temperatures lie outside the specified data range, linear extrapolation is used to determine the corresponding thermal conductivity. If Ftype = 2 use the operands N1 and Density (i) . If Ftype = 3 use the operands N1 and Atom(i) . It should be noted that the atom variables means the weight percent of solute in the material. If Ftype = 4 use the operands N1, N2, Temp (i), Atom (i) . The equation for heat conduction is: qcond = - Conductivity where qcond heat flux due to conduction Conductivity thermal conductivity temperature gradient Applicable simulation types: Deformation Module Heat Transfer Non-Isothermal Deformation Microstructure Module [...]... simulation Other keywords which effect simulation termination include: EMAX, LMAX, NSTEP, SMAX, VMIN When the criteria specified in any of these keywords has been met, the simulation will terminate If MaxTime = 0, TMAX will not be used as a termination condition Applicable simulation types: Isothermal Deformation Heat Transfer Non-Isothermal Deformation RELATED TOPICS Stopping parameters Keywords: LMAX,... Inter-object contact Keywords: DEFBWD TMPLIQ TMPLIQ n, tmpliq OPERAND DESCRIPTION DEFAULT n Material number None tmpliq Temperature at which phase transformation is completed None when material temperature increases DEFINITION TMPLIQ is used to describe the temperature at which phase transformation is completed REMARKS When a material is heated, then phase transformation starts at tmpsol (see keyword TMPSOL)... transformation starts when material temperature increases REMARKS When a material is heated, then phase transformation starts at tmpsol (see keyword TMPSOL) and it is completed at tmpliq Here, it is assumed that tmpsol < tmpliq If LATENT is set to zero, then this keyword is ignored TNOW TNOW GlobalTime LocalTime FuncTmMd 2ndStgTime OPERAND DESCRIPTION DEFAULT GlobalTime Current global time LocalTime... REMARKS When a material is heated, then phase transformation starts at tmpsol (see keyword TMPSOL) and it is completed at tmpliq Here, it is assumed that tmpsol < tmpliq If LATENT is set to zero, then this keyword is ignored TMPLMT TMPLMT Obj# TmpLmt OPERAND Obj# TmpLmt DESCRIPTION Object number Temperature limit DEFAULT NONE NONE DEFINITION TMPLMT, also referred to as the truncation temperature, specifies... provides a description of the simulation being performed TLOC TLOC Local Time OPERAND DESCRIPTION DEFAULT Local Time Incremental time span for next simulation 0.0 (initial run) DEFINITION TLOC is an action keyword which specifies the time span next simulation should last It actually assign the sum of current time and next simulation time span to TMAX (global time stopping criteria): TMAX = TNOW + TLOC This . 6, 9, 10, - 11, 12, 15, 18, 20. Applicable simulation types: Isothermal Deformation Heat Transfer Non-Isothermal Deformation RELATED TOPICS Step parameters, DEFORM database Keywords: STPDEF,. termination of the simulation. Other keywords which effect simulation termination include: EMAX, LMAX, NSTEP, SMAX, VMIN. When the criteria specified in any of these keywords has been met, the simulation. transformation starts at tmpsol (see keyword TMPSOL) and it is completed at tmpliq. Here, it is assumed that tmpsol < tmpliq . If LATENT is set to zero, then this keyword is ignored.