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CAE Verification Validation and Simulation Credibility

30 Chapters
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01
CAE credibility landscape
verification, validation, uncertainty quantification, and the ASME V&V 10/20/40 standards framework.
CAEcredibility
02
Code verification fundamentals
order-of-accuracy testing, grid convergence index, and the method of manufactured solutions.
verificationorder-of-accuracy
03
Solution verification in practice
discretization error estimation, Richardson extrapolation, and iterative convergence criteria.
Solutionverification
04
Model validation hierarchy
unit-level, subsystem-level, and full-system validation experiments with calibration and validation separation.
validationhierarchy
05
Validation metrics and acceptance criteria
quantitative comparison measures, confidence intervals, and validation domain definition.
Validationacceptance
06
Uncertainty quantification taxonomy
aleatory and epistemic uncertainties, parameter uncertainty, and model form uncertainty.
Uncertaintyquantification
07
Sensitivity analysis methods
local derivative-based, global variance-based (Sobol), and screening designs for CAE models.
Sensitivityanalysis
08
Design of experiments for validation
factorial, response surface, and space-filling designs tailored to simulation campaigns.
experimentsvalidation
09
Calibration and inverse problems
parameter estimation, Bayesian calibration, and regularization for ill-posed CAE inverse problems.
Calibrationproblems
10
Model form uncertainty
model discrepancy functions, Kennedy-O'Hagan framework, and embedded model error estimation.
uncertaintydiscrepancy
11
Predictive capability assessment
extrapolation, validation domain coverage, and prediction intervals for untested conditions.
Predictivecapability
12
Verification of coupled multiphysics simulations
partitioned vs monolithic coupling, interface verification, and conservation checks.
Verificationmultiphysics
13
Verification and validation of FEA structural models
element convergence, contact verification, and benchmark problems.
Verificationvalidation
14
Verification and validation of CFD simulations
turbulence model validation, mesh independence, and wind tunnel comparison.
Verificationvalidation
15
Verification and validation of thermal and multiphysics models
conjugate heat transfer, radiation, and phase change validation.
Verificationvalidation
16
Verification and validation of crash and impact simulations
material model calibration, strain-rate effects, and drop test correlation.
Verificationvalidation
17
Verification and validation of fatigue and durability simulations
S-N curve calibration, notch factors, and life prediction validation.
Verificationvalidation
18
Verification and validation of vibro-acoustic and NVH models
modal assurance criterion, frequency response validation, and damping identification.
Verificationvalidation
19
Verification and validation of additive manufacturing simulations
melt pool verification, residual stress validation, and distortion prediction.
Verificationvalidation
20
Verification and validation of multiphase and reacting flow simulations
interface tracking, combustion model validation, and species concentration comparison.
Verificationvalidation
21
Verification and validation of electromagnetic and coupled EM-thermal simulations
Maxwell solver verification, SAR validation, and antenna benchmarking.
Verificationvalidation
22
Verification and validation of biomechanical and soft-tissue models
constitutive model calibration, inverse FEA, and experimental validation.
Verificationvalidation
23
Verification and validation of geotechnical and soil-structure interaction models
constitutive calibration, centrifuge test validation, and settlement prediction.
Verificationvalidation
24
Verification and validation of system-level and reduced-order models
ROM verification, co-simulation validation, and digital twin credibility.
Verificationvalidation
25
Machine learning and surrogate model credibility
training data sufficiency, validation of AI-enhanced CAE, and uncertainty-aware surrogates.
surrogatecredibility
26
Documentation and reporting for V&V
credibility assessment reports, evidence hierarchy, and traceability matrices.
Documentationreporting
27
Regulatory and industry-specific V&V requirements
nuclear, aerospace, automotive, medical device, and defense applications.
Regulatoryindustry-specific
28
Software quality assurance for CAE codes
version control, regression testing, and verification test suites.
Softwareassurance
29
Case study
end-to-end V&V campaign for a structural component under combined loading with experimental correlation.
end-to-endcampaign
30
Case study
V&V and credibility assessment for a multiphysics digital twin with real-time sensor data assimilation.
credibilityassessment