Reduced-Order Models for Ranking Damage Initiation in Dual-Phase Composites Using Bayesian Neural Networks

The design and development of materials with increased damage resilience is often impeded by the difficulty in establishing the precise linkages, with quantified uncertainty, between the complex details of the internal structure of materials and their potential for damage initiation. We present here...

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Bibliographic Details
Published in:JOM (1989) Vol. 72; no. 12; pp. 4359 - 4369
Main Authors: Venkatraman, Aditya, Montes de Oca Zapiain, David, Kalidindi, Surya R.
Format: Journal Article
Language:English
Published: New York Springer US 01.12.2020
Springer Nature B.V
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ISSN:1047-4838, 1543-1851
Online Access:Get full text
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Summary:The design and development of materials with increased damage resilience is often impeded by the difficulty in establishing the precise linkages, with quantified uncertainty, between the complex details of the internal structure of materials and their potential for damage initiation. We present herein a novel machine-learning-based approach for establishing reduced-order models (ROMs) that relate the microstructure of a material to its susceptibility to damage initiation. This is accomplished by combining the recently established materials knowledge system framework with toolsets such as feedforward neural networks and variational Bayesian inference. The overall approach is found to be versatile for training scalable and accurate ROMs with quantified prediction uncertainty for the propensity to damage initiation for a variety of microstructures. The approach is applicable to a large class of challenges encountered in multiscale materials design efforts.
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ISSN:1047-4838
1543-1851
DOI:10.1007/s11837-020-04387-y