１月末に、LSTC社FTPサイトにて、971R6.0がリリースされました。
一瞬サイトに掲載されたら、すぐになくなって次の日再登場したり、
昨日もモジュールの変更があったりと、まだ安定しないようなので、
弊社からの正式リリースはまだアナウンスできませんが、テスト
状況をお知らせします。
先ずはリリースノートを英文のまま紹介します。（長いです）
前の正式リリース版 971 R5.1.1に対する機能追加
Keyword: *CONSTRAINED_LAGRANGE_IN_SOLID
Add parameter POREINI and associated options for computing porosity for
CTYPE=11 and 12.
Keyword: *SECTION_TSHELL, *CONTROL_ACCURACY
Add support for objective stress update for all tshell formulations.
Keyword: *MAT_181
Add *MAT_SIMPLIFIED_RUBBER/FOAM for truss elements.
Keyword: *CONTROL_IMPLICIT_EIGENVALUE
Add postprocessing of eigenforms of isogeometric elements to d3eigv for MPP.
Keyword: *MAT_100
Add option to fail all spotweld elements in an assemply simultaneously when
one of the elements reaches the failure strain.
Keyword: *CONTROL_MPP_CONTACT_GROUPABLE
Add control command to invoke groupable contact.
Keyword: n/a
Add -j option to l2a so as to retain binout prefix in ASCII output files.
Keyword: *DATABASE_FREQUENCY_BINARY_…
Add frequency range for d3psd in *DATABASE_FREQUENCY_BINARY_D3PSD.
Add frequency range for d3ssd in *DATABASE_FREQUENCY_BINARY_D3SSD.
Add command *DATABASE_FREQUENCY_BINARY_D3RMS.
Add command *DATABASE_FREQUENCY_BINARY_D3FTG.
Add command *DATABASE_FREQUENCY_BINARY_D3SSD.
Add command *DATABASE_FREQUENCY_BINARY_D3PSD.
Add command *DATABASE_FREQUENCY_BINARY_D3ACS.
Add command *DATABASE_FREQUENCY_BINARY_D3SPCM.
Keyword: *MAT_ADD_AIRBAG_POROSITY_LEAKAGE
Add command to specify porosity leakage for non-fabric material in
control volume modeled with *AIRBAG_HYBRID and *AIRBAG_WANG_NEFSKE.
Keyword: *MAT_219
Add *MAT_CODAM2 for shell, thick shell and brick elements.
Keyword: *SENSOR_DEFINE_…_SET
Add option of “set” to *sensor_define_node and *sensor_define_element.
Keyword: *HOURGLASS
Add hourglass formulation 10. Solid element formulation 1 with hourglass
formulation 10 is a Cosserat point element, see M. Jabareen and M.B. Rubin,
‘A Generalized Cosserat Point Element (CPE) for Isotropic Nonlinear Elastic
Materials including Irregular 3-D Brick and Thin Structures’, J. Mech. and
Mat. Struct., Vol 3 (2008) pp. 1465-1498.
Keyword: *CONTACT_TIED_…, *CONTROL_ADAPTIVE
Allow for tied contacts in MPP with solid remeshing:
the interfaces are completely re-initialized after
each adaptive step, which is fine for constraint type
contacts, but penalty types might experience accumulated
drift/creaping and force discontinuities.
Keyword: **BOUNDARY_RADIATION_SET_VF_CALCULATE_RESTART
Add a new RESTART capability to the radiation view factor calculator as
some viewfactor calculations may take hours to weeks (or even months)
to calculate.
Keyword: *AIRBAG_PARTICLE
Add BLOCK=10/11 to allow physical hole in the airbag due to eroded shells.
Keyword: *INITIAL_AIRBAG_PARTICLE_POSITION
New command to define initial position of airbag particles.
Keyword: *MAT_220
Implement use of shells for *MAT_RIGID_DISCRETE.
Keyword: *CONTROL_RIGID
Add plot element generation parameter (PLOTEL) for nodal rigid bodies.
Keyword: *PART_…_AVERAGED
Add AVERAGED option for truss elements so all the elements have the
same force.
Keyword: *SET_SEGMENT_ADD, *SET_SEGMENT_INTERSECT.
Add keywords *SET_SEGMENT_ADD and *SET_SEGMENT_INTERSECT.
Keyword: *MAT_015
Add NUMINT parameter for failure of *MAT_JOHNSON_COOK shells.
Keyword: *CONTROL_IMPLICIT_GENERAL
Add geometric stiffness for type 6 beam.
Keyword: *ELEMENT_SEATBELT_SLIPRING
Add normal-force-dependent slipring friction.
Keyword: *SECTION_SOLID
Add 1-point pentahedron element (ELFORM=115) with F-B hourglass control
for implicit and explicit.
Keyword: *DEFINE_COORDINATE_SYSTEM
Add local coordinate system option CIDL to *DEFINE_COORDINATE_SYSTEM.
Keyword: *MAT_224
Add temperature dependent Young’s modulus for *MAT_TABULATED_JOHNSON_COOK.
Negative value of E is now interpreted as a curve.
Keyword: *MAT_036, *MAT_133
Add heat treatment flag in *MAT_3-PARAMETER_BARLAT and *MAT_BARLAT_YLD2000.
Imposes changes in yield and hardening properties due to local or global
heating to simulate enhanced formability in aluminium sheets.
Keyword: *MAT_133
Add Gosh and Hocket-Sherby hardening to *MAT_BARLAT_YLD2000.
Keyword: *AIRBAG_HYBRID, *AIRBAG_WANG_NEFSKE
Add option of not applying pressure to part representing the venting hole.
Keyword: *MAT_ADD_EROSION
Add new thinning strain failure criterion (EPSTHIN).
Keyword: *MAT_054
Add new material parameter SOFTG to *MAT_ENHANCED_COMPOSITE_DAMAGE
intended to soften GBC and GCA in crashfront elements.
Keyword: *MAT_246
Implement *MAT_PML_NULL – PML material for MAT_NULL with EOS_1 or 4.
Keyword: *RIGIDWALL_PLANAR
Add DISPLAY option to *RIGIDWALL_PLANAR as means to display the wall.
Keyword: *INITIAL_STRESS_SPH
Implement initial stress command for SPH.
Keyword: *INTERFACE_SPRINGBACK, *INITIAL_STRAIN_SHELL
Make strain at all integration points available for MPP adaptive jobs.
Add output of strain at all integration points to dynain and dynain.bin.
Keyword: *DATABASE_BINARY_FSIFOR
Add three additional components to the binary fsifor database, namely,
the x, y, and z components of relative tangential velocity.
Keyword: *BOUNDARY_COUPLED, *DEFINE_SPOTWELD_MULTISCALE,
*INCLUDE_MULTISCALE_SPOTWELD
Implement loose coupling with other MPI programs. Currently only useful
when linking with MPP LS-DYNA for modeling of multiscale spotwelds.
Keyword: n/a
Add check in MPP of installed memory on system and requested memory.
If requested memory exceeds the real memory, the job will terminate unless
command line option swapping=yes is on. This avoids some system crashes
due to exhausted resources.
Keyword: *DATABASE_TRACER
Add NID parameter for assigning location of tracer by a massless node ID.
Keyword: *DATABASE_DISBOUT
Implement ASCII output file for discrete beams which includes
relative displacements, rotations, force resultants, and orientation of
the local coordinate system.
Keyword: *MAT_208
Implement *MAT_BOLT_BEAM for discrete beams.
Keyword: *ELEMENT_TSHELL_COMPOSITE
Add *ELEMENT_TSHELL_COMPOSITE which allows an arbitrary number of
through-thickness integration points to be defined in tshell elements
that share the same part ID.
Keyword: *LOAD_THERMAL_D3PLOT
Replace *LOAD_THERMAL_TOPAZ with *LOAD_THERMAL_D3PLOT which allows
temperatures from a thermal-only analysis to be used in a structural-
only analysis.
Keyword: *DATABASE_CPM_SENSOR
Add cylindrical shape CPM sensor to get better pressure signal.
Allow user to select a disk region near the segment in CPM sensor to
collect more particle data and get much smoother signal from CPM.
Keyword: *ALE_REFINE
Keyword to automatically refine the ALE mesh. Each element is replaced by 8
elements if a criteria is reached.
Keyword: *MAT_NONLOCAL
Update nonlocal smoothing (*MAT_NONLOCAL) to support thick shell
elements in addition to shell and solid elements. Also enabled fully
integrated elements to be properly smoothed. The MPP version now fully
supports *MAT_NONLOCAL.
Keyword: *DEFINE_CURVE_FUNCTION
Implement the Arithmetic IF conditional for *DEFINE_CURVE_FUNCTION.
Keyword: *DEFINE_BOX_SPH
Add a new option for DEFINE_BOX_SPH where by the box follows a node.
Keyword: *DEFINE_CURVE_FUNCTION
Add “sensor” to list of functions for *DEFINE_CURVE_FUNCTION so that
*SENSOR_CONTROL may affect a curve.
Keyword: *DEFINE_CPM_BAG_INTERAACTION
Add new feature that allows the cpm particles vented from the master bag
to be the input mass flow for the slave bag.
Keyword: *CONTACT_2D_AUTOMATIC_SURFACE_TO_SURFACE
Implement a user defined curve for the penalty stiffness like in
*CONSTRAINED_LAGRANGE_IN_SOLID. If SFACT<0, abs(SFACT) is ID of the
curve providing pressure-vs-penetration.
Keyword: *ELEMENT_BEAM_PULLEY
Add *ELEMENT_BEAM_PULLY for the definition of a pulley for truss
beam elements (see *SECTION_BEAM, ELFORM=3). Currently, the beam pulley is
implemented for *MAT_001 and *MAT_156. Pulleys allow continuous sliding of a
string of truss beam element through a sharp change of angle.
Keyword: *ELEMENT_MASS_MATRIX
Add treatment of nodal mass matrices to implicit via
*ELEMENT_MASS_MATRIX.
Keyword: *CONTACT_…_ORTHO_FRICTION
Add another method to specify orthotropic friction in contact but
which is available in SMP and MPP.
See also *DEFINE_FRICTION_ORIENTATION (SMP only).
Keyword: *CONTROL_FORMING_PRE_BENDING
Add *CONTROL_FORMING_PRE_BENDING to allow blank to be prebent prior to
gravity loading.
Keyword: *CONTROL_FORMING_ONESTEP_option
Add new feature for one-step forming simulation that determines an
unformed blank size and thickness, and also provides stress/strain/
thickness of formed part for initialization in crash analysis.
Option AUTO_CONSTRAINT allows nodal restraints to be applied automatically
in implicit calculation to prevent rigid body motion.
Option DRAWBEAD is used for application of extra draw bead forces.
Option FRICTION applies friction along the periphery of the part, based
on a user input “binder pressure”.
Keyword: *CONTACT_SPOTWELD_WITH_TORSION_PENALTY
Add penalty formulation to spotweld_with_torsion contact in both explicit
and implicit.
Keyword: *CONTROL_SHELL
Allow the ISTUPD thickness update option to be invoked by part ID.
Keyword: *DATABASE_BINARY_CPMFOR
Add binary output database for *AIRBAG_PARTICLE coupling surfaces.
There are four components in the database, coupling pressure, fx, fy and fz.
Keyword: *CONSTRAINED_SPR2, *CONSTRAINED_INTERPOLATION_SPOTWELD
Add inverse distance weighting for distribution of motion, forces, and
moments (INTP=2).
Keyword: *CONSTRAINED_SPR2
Add option for *CONSTRAINED_SPR2 which enables choice of normals computation:
ALPHA3.gt.0: incremental update (default), ALPHA3.lt.0: total update (new).
