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Energy Balance and Contact Artifact Review for Virtual Tests

30 Chapters
View Course Samples Online
01
Virtual test energy balance fundamentals
system boundaries, energy accounting, and contact artifact definitions.
boundariesaccounting
02
Contact artifact taxonomy in virtual tests
penetration, gaps, force spikes, and non-physical energy sources.
artifacttaxonomy
03
Energy balance equation setup for virtual test models
kinetic, potential, internal, and contact energy terms.
equationpotential
04
Reviewing contact definitions for energy consistency
penalty stiffness, damping, and friction parameters.
Reviewingdefinitions
05
Detecting contact artifacts through energy residuals
time-history plots and cumulative error metrics.
Detectingartifacts
06
Contact stabilization and its energy implications
artificial damping, scaling, and viscous regularization.
stabilizationimplications
07
Friction model review for energy balance
stick-slip transitions, friction-induced energy drift, and validation.
Frictionstick-slip
08
Contact artifact case study
penetration-induced energy spikes in explicit dynamic simulations.
artifactpenetration-induced
09
Energy balance verification for rigid body contact
restitution, impulse, and post-impact energy checks.
verificationrestitution
10
Reviewing contact algorithms for energy conservation
penalty vs. Lagrange multiplier vs. augmented Lagrangian.
Reviewingalgorithms
11
Contact artifact detection in implicit solvers
convergence issues, residual forces, and energy drift.
artifactdetection
12
Practical workflow
setting up energy balance monitors in a virtual test environment.
workflowmonitors
13
Contact artifact review for bolted joints and preloaded connections
energy loss and artificial compliance.
artifactpreloaded
14
Energy balance in drop tests
reviewing contact artifacts from initial impact to settling.
reviewingartifacts
15
Contact artifact review for rolling contact
energy dissipation, slip, and numerical damping effects.
artifactdissipation
16
Energy balance validation for crash simulations
contact energy, hourglass energy, and total energy ratio.
validationsimulations
17
Reviewing contact artifacts in multibody dynamics
constraint violation, energy gain, and stabilization techniques.
Reviewingartifacts
18
Contact artifact case study
energy drift due to improper contact thickness in shell structures.
artifactimproper
19
Energy balance review for thermal-contact coupling
frictional heating and artificial heat generation.
thermal-contactcoupling
20
Contact artifact detection using energy spectral analysis
frequency-domain signatures of numerical instabilities.
artifactdetection
21
Practical exercise
auditing a virtual test model for contact artifacts using energy balance reports.
exerciseauditing
22
Contact artifact review for soft materials
hyperelastic contact, energy dissipation, and numerical damping.
artifactmaterials
23
Energy balance in impact simulations with strain rate effects
reviewing contact-induced energy errors.
simulationsreviewing
24
Contact artifact review for adhesive and cohesive contacts
energy release rate and artificial compliance.
artifactadhesive
25
Energy balance verification for contact in explicit finite element analysis
time step, mass scaling, and energy ratios.
verificationexplicit
26
Contact artifact review for gear and cam mechanisms
energy loss, backlash, and numerical contact stiffness.
artifactmechanisms
27
Energy balance monitoring in long-duration virtual tests
cumulative contact energy error and drift correction.
monitoringlong-duration
28
Contact artifact review for human body models
energy balance in tissue contact and dummy positioning.
artifactpositioning
29
Practical case
diagnosing and fixing contact artifacts in a full vehicle crash virtual test using energy balance.
diagnosingartifacts
30
Course summary
best practices for energy balance and contact artifact review in virtual test sign-off.
practicesartifact