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LS-DYNA Vehicle Body-in-White Crashworthiness Optimization

30 Chapters
View Course Samples Online
01
Vehicle body-in-white crashworthiness optimization
course scope, engineering objectives, and LS-DYNA workflow overview.
body-in-whitecrashworthiness
02
BIW structural architecture and crash energy management
load paths, crumple zones, occupant safety requirements, and design constraints.
BIWstructural
03
LS-DYNA explicit dynamics fundamentals for crash simulation
time integration, contact algorithms, hourglass control, and stability.
LS-DYNAexplicit
04
Material modeling for BIW crashworthiness
elastic-plastic metals, strain rate effects, failure criteria, and spot weld modeling.
Materialmodeling
05
Building a full-vehicle frontal impact model
geometry preparation, meshing strategies, connections, and boundary conditions.
Buildingfull-vehicle
06
Side impact and pole crash model setup
barrier positioning, initial velocity, and BIW-specific contact definitions.
positioningvelocity
07
Rear impact and roof crush simulation
load cases, regulatory requirements, and LS-DYNA keyword setup.
simulationregulatory
08
Model validation against physical crash tests
correlation metrics, sensor placement, and iterative model updating.
validationphysical
09
Intrusion and occupant injury criteria
BIW deformation metrics, intrusion measurements, and safety target definition.
Intrusionoccupant
10
Design of experiments for BIW crashworthiness
parameter selection, DOE methods, and LS-DYNA batch run automation.
experimentsBIW
11
Sensitivity analysis of BIW parameters
gauge thickness, material grade, bead geometry, and joint stiffness effects.
Sensitivityanalysis
12
Metamodeling techniques for crash simulation
response surface, Kriging, and neural network surrogate construction.
Metamodelingtechniques
13
Single-objective optimization of BIW crash performance
mass minimization with intrusion constraints using LS-OPT.
Single-objectiveoptimization
14
Multi-objective optimization for crashworthiness and weight
Pareto front generation and trade-off analysis.
Multi-objectiveoptimization
15
Topology and topography optimization for BIW load paths
SIMP method and LS-DYNA-based structural synthesis.
Topologytopography
16
Shape and size optimization of BIW components
bead design, rib placement, and thickness distribution.
optimizationBIW
17
Multi-disciplinary optimization integrating crash, NVH, and stiffness
coupled LS-DYNA and optimization workflows.
Multi-disciplinaryoptimization
18
Robust design and reliability-based optimization under crash uncertainties
material scatter, manufacturing tolerances.
reliability-basedoptimization
19
Advanced high-strength steel and aluminum BIW optimization
material selection, forming effects, and joining methods.
Advancedhigh-strength
20
Composite and hybrid material BIW crashworthiness
LS-DYNA material models, failure prediction, and optimization.
Compositematerial
21
Spot weld and adhesive joint optimization for crash integrity
failure modeling and joint layout design.
adhesiveoptimization
22
Battery electric vehicle BIW crashworthiness
battery pack protection, floor structure, and side pole impact.
electricBIW
23
Pedestrian protection and low-speed damageability
BIW front-end design and LS-DYNA simulation for regulation.
Pedestrianprotection
24
Occupant restraint system interaction with BIW
sled tests, airbag timing, and structural coupling effects.
Occupantrestraint
25
High-performance computing for LS-DYNA crash optimization
parallelization, MPP, and cloud-based DOE runs.
High-performancecomputing
26
Automated post-processing and data extraction for optimization
LS-DYNA d3plot, binout, and Python scripting.
Automatedpost-processing
27
Machine learning accelerated crashworthiness optimization
surrogate-assisted evolutionary algorithms and active learning.
acceleratedcrashworthiness
28
Case study
full frontal impact BIW optimization for mass reduction and intrusion control.
BIWoptimization
29
Case study
side impact BIW optimization with multi-objective Pareto and robust design.
BIWoptimization
30
Future trends in BIW crashworthiness optimization
digital twin, real-time simulation, and generative design.
BIWcrashworthiness