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LS-DYNA® KEYWORD USER'S MANUAL V6.1.0
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更新于2024-07-25
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"LS-DYNA® 关键字用户手册第1卷 - dyna key V6"
LS-DYNA是一款强大的非线性有限元分析软件,主要用于模拟各种复杂的工程问题,如碰撞、冲击、爆炸等动态事件。Dyna Key V6是该软件的最新帮助文档,提供了详细的用户指南和技术信息,帮助工程师和研究人员理解和使用LS-DYNA的高级功能。
在V6版本中,LS-DYNA继续提供一系列先进的数值方法和模型,包括但不限于:
1. **材料模型**:LS-DYNA支持多种材料模型,如塑性、弹塑性、蠕变、损伤、疲劳和断裂等,以适应不同材料在不同条件下的行为。这些模型可以精确地模拟材料在极端条件下的响应。
2. **接触与碰撞处理**:软件包含了高级的接触算法,能够处理复杂的接触问题,如自接触、滑动接触、摩擦接触等,确保在模拟过程中物体间相互作用的准确计算。
3. **几何非线性**:LS-DYNA能处理大变形问题,允许几何形状在分析过程中发生变化,这对于模拟结构在极端载荷下的响应至关重要。
4. **流体-结构相互作用(FSI)**:软件具备强大的流固耦合能力,可以模拟流体与固体之间的相互作用,如水下爆炸、空气动力学效应等。
5. **热-力学耦合**:LS-DYNA支持热力耦合分析,可以模拟热量的产生、传递和消耗对结构性能的影响,尤其在高温和爆炸环境中的应用。
6. **多物理场分析**:除了传统的结构分析,LS-DYNA还可以进行声学、电磁、化学反应等多物理场的耦合分析。
7. **并行计算**:利用高效的并行计算技术,LS-DYNA可以在大规模计算机集群上运行,大大提高了计算效率,使得解决复杂问题成为可能。
8. **LS-PrePost后处理工具**:作为LSTC的产品,LS-PrePost是LS-DYNA的图形用户界面,用于数据准备和结果可视化,提供丰富的图形化操作和定制化报告功能。
9. **LS-OPT优化工具**:LS-OPT是与LS-DYNA集成的优化软件,可进行设计优化和参数化研究,通过自动调整设计变量来最小化或最大化指定的目标函数。
LS-DYNA的关键词用户手册是其强大功能的详细指南,涵盖了所有可用的命令、关键字和设置,以帮助用户正确设置和运行模拟。对于每个关键字,手册通常会解释其用途、输入格式以及可能的选项,确保用户能够充分利用软件的功能。
dyna key V6提供了关于LS-DYNA的全面技术资料,是工程技术人员进行非线性动态分析不可或缺的参考资料。通过深入学习和应用手册中的知识,用户可以更高效、准确地解决各种实际工程问题。
TABLE OF CONTENTS
14 LS-DYNA Version 971
*INTERFACE_SSI_{OPTION}_ID ........................................................................................ 25-30
*INTERFACE_SSI_AUX_{OPTION} ................................................................................... 25-34
*INTERFACE_SSI_AUX_EMBEDDED_{OPTION1}_{OPTION2} ................................... 25-35
*INTERFACE_SSI_STATIC_{OPTION}_ID ....................................................................... 25-37
*KEYWORD ............................................................................................................................................ 26-1
*LOAD ...................................................................................................................................................... 27-1
*LOAD_ALE_CONVECTION_{OPTION} ............................................................................ 27-3
*LOAD_BEAM_OPTION ......................................................................................................... 27-5
*LOAD_BLAST ........................................................................................................................ 27-7
*LOAD_BLAST_ENHANCED .............................................................................................. 27-10
*LOAD_BLAST_SEGMENT................................................................................................. 27-15
*LOAD_BLAST_SEGMENT_SET ....................................................................................... 27-16
*LOAD_BODY_OPTION ........................................................................................................ 27-17
*LOAD_BODY_GENERALIZED_OPTION ........................................................................ 27-22
*LOAD_BODY_POROUS ..................................................................................................... 27-25
*LOAD_BRODE ..................................................................................................................... 27-27
*LOAD_DENSITY_DEPTH .................................................................................................. 27-29
*LOAD_ERODING_PART_SET .......................................................................................... 27-31
*LOAD_GRAVITY_PART_{OPTION} ............................................................................... 27-33
*LOAD_HEAT_CONTROLLER .......................................................................................... 27-35
*LOAD_HEAT_GENERATION_OPTION ........................................................................... 27-36
*LOAD_MASK ....................................................................................................................... 27-38
*LOAD_MOTION_NODE ..................................................................................................... 27-40
*LOAD_MOVING_PRESSURE ........................................................................................... 27-42
*LOAD_NODE_OPTION ........................................................................................................ 27-44
*LOAD_REMOVE_PART_{OPTION} ................................................................................ 27-47
*LOAD_RIGID_BODY .......................................................................................................... 27-49
*LOAD_SEGMENT_{OPTION} ........................................................................................... 27-52
*LOAD_SEGMENT_NONUNIFORM_{OPTION} ............................................................. 27-56
*LOAD_SEGMENT_SET_{OPTION} ................................................................................... 27-59
*LOAD_SEGMENT_SET_ANGLE ...................................................................................... 27-61
*LOAD_SEGMENT_SET_NONUNIFORM_{OPTION} .................................................... 27-63
*LOAD_SEISMIC_SSI_OPTION1_{OPTION2} .................................................................. 27-65
*LOAD_SHELL_OPTION1_{OPTION2} .............................................................................. 27-69
*LOAD_SPCFORC ................................................................................................................. 27-72
*LOAD_SSA ............................................................................................................................ 27-73
TABLE OF CONTENTS
LS-DYNA Version 971 15
*LOAD_STEADY_STATE_ROLLING ............................................................................... 27-77
*LOAD_STIFFEN_PART_{OPTION} ................................................................................. 27-81
*LOAD_SUPERPLASTIC_FORMING ............................................................................... 27-83
*LOAD_THERMAL_OPTION .............................................................................................. 27-89
*LOAD_THERMAL_CONSTANT....................................................................................... 27-90
*LOAD_THERMAL_CONSTANT_ELEMENT_OPTION ................................................ 27-91
*LOAD_THERMAL_CONSTANT_NODE ......................................................................... 27-92
*LOAD_THERMAL_D3PLOT ............................................................................................. 27-93
*LOAD_THERMAL_LOAD_CURVE ................................................................................. 27-94
*LOAD_THERMAL_TOPAZ ............................................................................................... 27-95
*LOAD_THERMAL_VARIABLE ........................................................................................ 27-96
*LOAD_THERMAL_VARIABLE_BEAM_{OPTION} ...................................................... 27-98
*LOAD_THERMAL_VARIABLE_ELEMENT_OPTION................................................ 27-100
*LOAD_THERMAL_VARIABLE_NODE ........................................................................ 27-101
*LOAD_THERMAL_VARIABLE_SHELL_{OPTION} .................................................. 27-102
*LOAD_VOLUME_LOSS ................................................................................................... 27-104
*NODE ..................................................................................................................................................... 28-1
*NODE_{OPTION} ................................................................................................................... 28-2
*NODE_MERGE_SET ............................................................................................................. 28-4
*NODE_MERGE_TOLERANCE ........................................................................................... 28-5
*NODE_RIGID_SURFACE .................................................................................................... 28-6
*NODE_SCALAR_{OPTION} ................................................................................................. 28-7
*NODE_TRANSFORM............................................................................................................ 28-8
*PARAMETER ....................................................................................................................................... 29-1
*PARAMETER_{OPTION} ..................................................................................................... 29-2
*PARAMETER_DUPLICATION ........................................................................................... 29-4
*PARAMETER_EXPRESSION_{OPTION} ......................................................................... 29-5
*PART ...................................................................................................................................................... 30-1
*PART_{OPTION1}_{OPTION2}_{OPTION3}_{OPTION4}_{OPTION5} ......................... 30-2
*PART_ADAPTIVE_FAILURE ........................................................................................... 30-12
*PART_ANNEAL ................................................................................................................... 30-13
*PART_COMPOSITE_{OPTION} ........................................................................................ 30-14
*PART_DUPLICATE ............................................................................................................ 30-20
*PART_MODES ..................................................................................................................... 30-22
*PART_SENSOR .................................................................................................................... 30-26
TABLE OF CONTENTS
16 LS-DYNA Version 971
*PART_MOVE ........................................................................................................................ 30-27
*PERTURBATION ................................................................................................................................. 31-1
*PERTURBATION_OPTION................................................................................................... 31-2
*RAIL ....................................................................................................................................................... 32-1
*RAIL_TRACK ......................................................................................................................... 32-2
*RAIL_TRAIN .......................................................................................................................... 32-7
*RIGIDWALL ......................................................................................................................................... 33-1
*RIGIDWALL_GEOMETRIC_OPTION_{OPTION}_{OPTION}}_{OPTION} ................. 33-2
*RIGIDWALL_PLANAR_{OPTION}_{OPTION}_{OPTION} .......................................... 33-11
*SECTION ............................................................................................................................................... 34-1
*SECTION_ALE1D .................................................................................................................. 34-2
*SECTION_ALE2D .................................................................................................................. 34-4
*SECTION_BEAM_{OPTION} ................................................................................................ 34-5
*SECTION_BEAM_AISC ...................................................................................................... 34-20
*SECTION_DISCRETE ......................................................................................................... 34-22
*SECTION_POINT_SOURCE .............................................................................................. 34-25
*SECTION_POINT_SOURCE_MIXTURE ......................................................................... 34-28
*SECTION_SEATBELT ........................................................................................................ 34-34
*SECTION_SHELL_{OPTION} ............................................................................................ 34-35
*SECTION_SOLID_{OPTION} ............................................................................................ 34-50
*SECTION_SPH_{OPTION} ................................................................................................. 34-60
*SECTION_TSHELL ............................................................................................................. 34-63
*SENSOR ................................................................................................................................................. 35-1
*SENSOR_CONTROL ............................................................................................................. 35-3
*SENSOR_DEFINE_CALC-MATH ....................................................................................... 35-5
*SENSOR_DEFINE_ELEMENT_{OPTION} ........................................................................ 35-7
*SENSOR_DEFINE_FORCE .................................................................................................. 35-9
*SENSOR_DEFINE_NODE_{OPTION} .............................................................................. 35-11
*SENSOR_SWITCH ............................................................................................................... 35-13
*SENSOR_SWITCH_CALC-LOGIC ................................................................................... 35-14
*SET .......................................................................................................................................................... 36-1
*SET_BEAM_{OPTION} ......................................................................................................... 36-3
*SET_BEAM_ADD ................................................................................................................... 36-6
*SET_BEAM_INTERSECT..................................................................................................... 36-7
TABLE OF CONTENTS
LS-DYNA Version 971 17
*SET_DISCRETE_{OPTION} ................................................................................................. 36-8
*SET_DISCRETE_ADD ........................................................................................................ 36-11
*SET_MULTI-MATERIAL_GROUP_LIST ....................................................................... 36-12
*SET_NODE_{OPTION} ....................................................................................................... 36-14
*SET_NODE_ADD_{OPTION} ............................................................................................. 36-18
*SET_NODE_INTERSECT ................................................................................................... 36-20
*SET_PART_{OPTION} ........................................................................................................ 36-21
*SET_PART_ADD .................................................................................................................. 36-24
*SET_SEGMENT_{OPTION} ................................................................................................ 36-26
*SET_SEGMENT_ADD ......................................................................................................... 36-31
*SET_SEGMENT_INTERSECT .......................................................................................... 36-32
*SET_2D_SEGMENT_{OPTION} ........................................................................................ 36-33
*SET_SHELL_{OPTION} ...................................................................................................... 36-35
*SET_SHELL_ADD ............................................................................................................... 36-39
*SET_SHELL_INTERSECT ................................................................................................. 36-40
*SET_SOLID_{OPTION} ....................................................................................................... 36-41
*SET_SOLID_ADD ................................................................................................................ 36-44
*SET_SOLID_INTERSECT .................................................................................................. 36-45
*SET_TSHELL_{OPTION} ................................................................................................... 36-46
*TERMINATION ................................................................................................................................... 37-1
*TERMINATION_BODY ........................................................................................................ 37-2
*TERMINATION_CONTACT ............................................................................................... 37-3
*TERMINATION_CURVE ..................................................................................................... 37-4
*TERMINATION_DELETED_SHELLS_{OPTION} ........................................................... 37-5
*TERMINATION_DELETED_SOLIDS_{OPTION} ............................................................ 37-6
*TERMINATION_NODE ........................................................................................................ 37-7
*TERMINATION_SENSOR ................................................................................................... 37-8
*TITLE ..................................................................................................................................................... 38-1
*USER ...................................................................................................................................................... 39-1
*USER_INTERFACE_OPTION .............................................................................................. 39-1
*USER_LOADING ................................................................................................................... 39-3
*USER_LOADING_SET.......................................................................................................... 39-4
RESTART INPUT DATA ...................................................................................................................... 40-1
*CHANGE_OPTION ................................................................................................................. 40-3
*CONTROL_DYNAMIC_RELAXATION .......................................................................... 40-14
TABLE OF CONTENTS
18 LS-DYNA Version 971
*CONTROL_SHELL.............................................................................................................. 40-16
*CONTROL_TERMINATION ............................................................................................. 40-18
*CONTROL_TIMESTEP ...................................................................................................... 40-19
*DAMPING_GLOBAL .......................................................................................................... 40-20
*DATABASE_OPTION ........................................................................................................... 40-21
*DATABASE_BINARY_OPTION ......................................................................................... 40-23
*DELETE_OPTION ................................................................................................................ 40-24
*INTERFACE_SPRINGBACK_LSDYNA ........................................................................... 40-26
*RIGID_DEFORMABLE_OPTION ...................................................................................... 40-28
*RIGID_DEFORMABLE_CONTROL ................................................................................ 40-29
*RIGID_DEFORMABLE_D2R ............................................................................................. 40-30
*RIGID_DEFORMABLE_R2D ............................................................................................. 40-31
*STRESS_INITIALIZATION_{OPTION} ........................................................................... 40-32
*TERMINATION_OPTION ................................................................................................... 40-34
*TITLE ..................................................................................................................................... 40-36
REFERENCES ........................................................................................................................................ 41-1
APPENDIX A: USER DEFINED MATERIALS ................................................................................. 42-1
APPENDIX B: USER DEFINED EQUATION OF STATE ............................................................... 43-1
APPENDIX C: USER DEFINED ELEMENT INTERFACE FOR SOLIDS AND SHELLS .......... 44-1
APPENDIX D: USER DEFINED AIRBAG SENSOR ........................................................................ 45-1
APPENDIX E: USER DEFINED SOLUTION CONTROL ............................................................... 46-1
APPENDIX F: USER DEFINED INTERFACE CONTROL ............................................................. 47-1
APPENDIX G: USER DEFINED INTERFACE FRICTION AND CONDUCTIVITY .................. 48-1
APPENDIX H: USER DEFINED THERMAL MATERIAL MODEL.............................................. 49-1
APPENDIX I: OCCUPANT SIMULATION INCLUDING THE COUPLING TO PROGRAMS CAL3D
AND MADYMO ...................................................................................................................................... 50-1
INTRODUCTION ..................................................................................................................... 50-1
THE LS-DYNA/OCCUPANT SIMULATION PROGRAM LINK ...................................... 50-1
DUMMY MODELING ............................................................................................................. 50-3
AIRBAG MODELING ............................................................................................................. 50-4
KNEE BOLSTER ...................................................................................................................... 50-5
COMMON ERRORS ................................................................................................................ 50-5
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