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LS-DYNA Side Impact Structural Crash Simulation

30 Chapters
View Course Samples Online
01
Side impact crash simulation in LS-DYNA
regulatory and consumer-test landscape, structural crashworthiness objectives, and the role of explicit FEA.
simulationLS-DYNA
02
LS-DYNA explicit solver fundamentals for crash
time integration, stable time step, mass scaling, and energy balance checks in side impact models.
LS-DYNAexplicit
03
Side impact load cases and barriers
EEVC MDB, NHTSA moving deformable barrier, pole impact, and side impact test configurations.
barriersEEVC
04
Vehicle body-in-white geometry preparation for side impact
CAD cleanup, midsurface extraction, and shell mesh generation for doors, B-pillars, rockers, and floor.
body-in-whitegeometry
05
Material modeling for side impact crash
elastoplastic metals, strain-rate sensitivity, and failure criteria for high-strength steel and aluminum components.
Materialmodeling
06
Spot weld and structural joint modeling in LS-DYNA
beam, solid, and tied contact representations for side impact joints.
structuralmodeling
07
Contact definition for side impact
automatic single surface, surface-to-surface, and tied contacts for barrier-to-vehicle and self-contact.
definitionautomatic
08
Barrier and impactor modeling
rigid wall, moving deformable barrier, and pole impactor setup with initial velocity and boundary conditions.
impactormodeling
09
Occupant restraint and interior trim modeling for side impact
airbags, side curtains, seats, and door trim interaction.
Occupantrestraint
10
Side impact model assembly and initialization
unit consistency, part positioning, initial velocity, gravity, and contact initialization.
assemblyinitialization
11
Running LS-DYNA side impact simulations
input deck structure, control cards, output requests, and restart handling.
LS-DYNAsimulations
12
Monitoring and debugging side impact simulations
negative volume, energy error, contact penetration, and time-step collapse.
Monitoringdebugging
13
Post-processing side impact results
intrusion, velocity, acceleration, and force-displacement extraction with LS-PrePost.
Post-processingintrusion
14
Structural intrusion and survival space assessment
B-pillar, door, and rocker deformation metrics against side impact criteria.
Structuralintrusion
15
Occupant injury criteria from side impact simulation
rib deflection, pelvic force, head injury, and Euro NCAP and NHTSA metrics.
Occupantcriteria
16
Mesh convergence and quality for side impact crash models
element size, aspect ratio, hourglass control, and shell formulation selection.
convergencehourglass
17
Material calibration for side impact
coupon tests, inverse fitting, and validation of strain-rate and failure parameters.
Materialcalibration
18
Validation of side impact models against physical tests
sled, component, and full-vehicle correlation and error quantification.
Validationphysical
19
Design of experiments for side impact structures
parametric studies on thickness, grade, and geometry for intrusion and weight.
experimentsstructures
20
Optimization of side impact performance
topology, shape, and multi-objective optimization with LS-OPT and LS-DYNA.
Optimizationperformance
21
Side impact of electric vehicles
battery pack enclosure, underbody, and high-voltage component crash safety simulation.
electricvehicles
22
Advanced material models for side impact
composite, tailor-welded blank, and hot-stamped steel modeling in LS-DYNA.
Advancedmaterial
23
Side impact simulation with occupant safety coupling
MADYMO and LS-DYNA co-simulation for restraint and injury prediction.
simulationoccupant
24
Robustness and variability in side impact simulation
stochastic analysis, scatter in material and manufacturing parameters.
Robustnessvariability
25
High-performance computing for side impact LS-DYNA
MPP, SMP, GPU acceleration, and model size management.
High-performancecomputing
26
Side impact model checking and quality assurance
checklist for contacts, materials, boundary conditions, and output.
checkingassurance
27
Regulatory documentation and reporting for side impact simulation
traceability, assumptions, and correlation evidence.
Regulatorydocumentation
28
Case study
full-vehicle side impact simulation of a passenger car against MDB and pole, from setup to countermeasure design.
full-vehiclesimulation
29
Case study
side impact simulation of a battery electric vehicle with underbody and battery pack intrusion assessment.
simulationelectric
30
Emerging trends in side impact simulation
machine learning surrogates, real-time simulation, and integration with digital twins.
Emergingsimulation