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Material Constitutive Model Calibration for Nonlinear FEA

30 Chapters
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01
Calibration workflow for nonlinear FEA
constitutive model selection, experimental data mapping, parameter identification, verification, and validation.
Calibrationworkflow
02
Stress-strain measures and finite strain kinematics
deformation gradient, Green-Lagrange strain, rate of deformation, and objective stress rates for calibration.
Stress-strainmeasures
03
Elasticity calibration
isotropic and orthotropic linear elastic constants from tensile, shear, and bulk modulus tests, including uncertainty quantification.
Elasticitycalibration
04
Yield criteria calibration
von Mises, Hill48, and Drucker-Prager parameters from uniaxial, biaxial, and triaxial test data.
criteriacalibration
05
Isotropic hardening calibration
Swift, Voce, and combined laws fitted to uniaxial tension and compression curves with optimization algorithms.
Isotropichardening
06
Kinematic hardening calibration
Armstrong-Frederick, Chaboche, and Ohno-Wang parameters from cyclic loading and ratcheting experiments.
Kinematichardening
07
Combined isotropic-kinematic hardening calibration
simultaneous identification from monotonic and cyclic tests using multi-objective optimization.
Combinedisotropic-kinematic
08
Plasticity with pressure dependence
Drucker-Prager and Mohr-Coulomb calibration for geomaterials and polymers from triaxial and confined compression tests.
Plasticitypressure
09
Porous metal plasticity calibration
Gurson-Tvergaard-Needleman parameters from tensile, notched, and fracture toughness specimens.
plasticitycalibration
10
Creep and viscoplasticity calibration
Norton-Bailey, Garofalo, and Chaboche viscoplastic parameters from constant-load and relaxation tests.
viscoplasticitycalibration
11
Hyperelastic model calibration
Neo-Hookean, Mooney-Rivlin, Ogden, and Yeoh parameters from uniaxial, planar, and biaxial elastomer tests.
Hyperelasticcalibration
12
Viscohyperelastic calibration
Prony series and fractional derivative models from dynamic mechanical analysis and stress relaxation data.
Viscohyperelasticcalibration
13
Damage and failure calibration
ductile damage, Johnson-Cook fracture, and cohesive zone parameters from fracture and impact tests.
calibrationJohnson-Cook
14
Temperature and rate dependence
Johnson-Cook and Zerilli-Armstrong parameters from split Hopkinson pressure bar and elevated-temperature tests.
Temperaturedependence
15
Anisotropic plasticity calibration
Barlat Yld2000 and Hill48 parameters from cruciform and notched specimen tests for sheet metals.
Anisotropicplasticity
16
Crystal plasticity calibration
slip system parameters from micropillar compression, EBSD, and macroscopic stress-strain response.
plasticitycalibration
17
Shape memory alloy calibration
Auricchio and Lagoudas model parameters from isothermal and thermal cycling experiments.
calibrationAuricchio
18
Calibration for additive manufacturing materials
accounting for build orientation, porosity, and residual stress in constitutive parameter identification.
Calibrationadditive
19
Inverse identification using full-field measurements
digital image correlation and finite element model updating for heterogeneous parameter fields.
identificationfull-field
20
Bayesian calibration and uncertainty quantification
prior selection, likelihood construction, Markov chain Monte Carlo, and posterior predictive checks.
Bayesiancalibration
21
Optimization algorithms for parameter identification
gradient-based, genetic algorithms, particle swarm, and surrogate-assisted methods.
Optimizationalgorithms
22
Sensitivity analysis and parameter identifiability
local and global methods, correlation matrices, and experimental design for calibration.
Sensitivityanalysis
23
Verification and validation of calibrated models
mesh convergence, solution verification, and validation metrics against independent test data.
Verificationvalidation
24
Calibration of elastoplastic models for metals
combined experimental-numerical workflow from tensile tests to component-level validation.
Calibrationelastoplastic
25
Calibration of geomaterial models
Cam-Clay and hypoplastic parameters from oedometer and triaxial tests for soil and rock.
Calibrationgeomaterial
26
Calibration of polymer models
viscoplastic and damage parameters from tensile, compression, and impact tests for thermoplastics.
Calibrationviscoplastic
27
Calibration of composite material models
orthotropic elasticity, Hashin damage, and cohesive parameters from coupon and element tests.
Calibrationcomposite
28
Calibration of rubber and foam models
hyperelastic and hyperfoam parameters from uniaxial, biaxial, and volumetric compression tests.
Calibrationhyperelastic
29
Calibration of high-temperature alloys
creep and viscoplastic parameters from long-term and accelerated tests for turbine components.
Calibrationhigh-temperature
30
Industrial case studies and best practices
calibration of automotive crash, aerospace, and biomedical models with regulatory and reproducibility considerations.
Industrialpractices