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LS-DYNA Crash Test Dummy Modeling and Injury Analysis

30 Chapters
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01
Course overview
scope, objectives, and the role of LS-DYNA in crash test dummy modeling and injury analysis.
objectivesLS-DYNA
02
Fundamentals of crash test dummies
anthropomorphic test devices (ATDs), biofidelity, and injury criteria standards.
anthropomorphicATDs
03
LS-DYNA solver basics for crashworthiness
explicit time integration, contact algorithms, and material models relevant to ATD simulations.
LS-DYNAcrashworthiness
04
Dummy model architecture in LS-DYNA
rigid bodies, deformable parts, joints, and connections in a full ATD assembly.
architectureLS-DYNA
05
Building a simplified dummy model from scratch
geometry import, meshing, and part definition in LS-PrePost.
Buildingsimplified
06
Material modeling for dummy components
foams, rubbers, plastics, and metals with strain-rate effects.
Materialmodeling
07
Joint modeling and articulation
revolute, spherical, and translational joints with stiffness and damping.
modelingarticulation
08
Contact definition for dummy self-contact and dummy-to-vehicle interaction
penalty, soft constraint, and friction.
definitionself-contact
09
Initialization and boundary conditions
positioning, belt routing, and pre-simulation checks.
Initializationboundary
10
Running a baseline frontal impact simulation with a full dummy model
setup, execution, and monitoring.
baselinesimulation
11
Post-processing dummy kinematics
displacement, velocity, acceleration, and animation review in LS-PrePost.
Post-processingkinematics
12
Injury criteria calculation
HIC, Nij, chest deflection, femur force, and other ATD-based metrics.
criteriacalculation
13
Validating dummy model response against physical test data
corridor matching and signal filtering per SAE J211.
Validatingresponse
14
Side impact dummy modeling
WorldSID, ES-2re, and differences in construction and instrumentation.
modelingWorldSID
15
Rear impact and whiplash analysis
BioRID and RID dummies, neck injury criteria, and seat interaction.
whiplashanalysis
16
Pedestrian and cyclist dummy models
legform, upper legform, and headform impactors in LS-DYNA.
Pedestrianheadform
17
Child dummy modeling
Q-series and Hybrid III child ATDs, scaling, and restraint system interaction.
modelingQ-series
18
Airbag and seatbelt interaction with dummy models
deployment, slip, and occupant restraint simulation.
seatbeltinteraction
19
Sensitivity studies and parametric optimization
dummy positioning, belt anchor points, and airbag parameters.
Sensitivityparametric
20
Mesh convergence and hourglass control for dummy models
accuracy vs. computational cost.
convergencehourglass
21
Handling numerical instabilities in dummy simulations
negative volumes, contact penetration, and energy errors.
Handlingnumerical
22
Coupling dummy models with vehicle structures
full frontal, offset, and side impact load cases.
Couplingstructures
23
Advanced material calibration for dummy components using test data
inverse methods and curve fitting.
Advancedmaterial
24
Introduction to human body models (HBMs) in LS-DYNA
THUMS, GHBMC, and comparison with ATDs.
HBMsLS-DYNA
25
Injury risk functions and probabilistic analysis
from dummy signals to injury probability.
functionsprobabilistic
26
Regulatory and consumer test protocols
FMVSS, Euro NCAP, and IIHS requirements for dummy modeling.
Regulatoryconsumer
27
Automation and scripting in LS-DYNA for dummy simulations
Python, LS-OPT, and batch processing.
Automationscripting
28
Verification and validation (V&V) of dummy models
ASME V&V 10 and 20 standards.
Verificationvalidation
29
Case study
full vehicle frontal crash simulation with Hybrid III dummy and injury assessment.
simulationIII
30
Emerging trends
active safety integration, virtual testing, and machine learning for dummy model improvement.
Emergingintegration