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Process-Structure-Property Modeling and the Associated History. Requires: 1. theory, 2. computations, and 3. experiments. History is important to predict the future!!. 25% wrong answer if history is not considered!!. 304L SS. Solving Complex Engineering Problems. Metals Polymers

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Process-Structure-Property Modeling and the Associated History

Requires: 1. theory, 2. computations, and 3. experiments


History is important to predict the future!! History

25% wrong answer

if history is not

considered!!

304L SS


Solving Complex Engineering Problems History

Metals

Polymers

Ceramics

Composites

Biological materials

Macroscale Internal

State Variable Theory

Multiscale

Modeling

BVP

Material

Heterogeneities


Macroscale History MSU ISV/MSF

Models Implementation/Use

ISV=Internal State Variable

MSF=MultiStage Fatigue

mesh

initial microstructure-

inclusion content

MSU

MSF

Model

Finite

Element

Code

(ABAQUS)

s, e, f

Life

MSU

DMG

model

failure

Design

Note: model can

be implemented

in other FE codes

Multiscale

Materials

Modeling

boundary conditions

loads

temperature

strain rate

history

Note: the ISV and MSF

models give a 95% correct

answer where current models

in codes give a 50% answer

Physics Validation

And

Numerical Verification


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