DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Learning viscoelasticity models from indirect data using deep neural networks

Journal Article · · Computer Methods in Applied Mechanics and Engineering

In this study, we propose a novel approach to model viscoelasticity materials, where rate-dependent and non-linear constitutive relationships are approximated with deep neural networks. We assume that inputs and outputs of the neural networks are not directly observable, and therefore common training techniques with input–output pairs for the neural networks are inapplicable. To that end, we develop a novel computational approach to both calibrate parametric and learn neural-network-based constitutive relations of viscoelasticity materials from indirect displacement data in the context of multiple-physics systems. We show that limited displacement data holds sufficient information to quantify the viscoelasticity behavior. We formulate the inverse computation – modeling viscoelasticity properties from observed displacement data – as a PDE-constrained optimization problem and minimize the error functional using a gradient-based optimization method. The gradients are computed by a combination of automatic differentiation and implicit function differentiation rules. The effectiveness of our method is demonstrated through numerous benchmark problems in geomechanics and porous media transport.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Stanford University, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
AC05-76RL01830; SC0019205; SC0019453
OSTI ID:
1827254
Report Number(s):
PNNL-SA--154901
Journal Information:
Computer Methods in Applied Mechanics and Engineering, Journal Name: Computer Methods in Applied Mechanics and Engineering Vol. 387; ISSN 0045-7825
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (25)

Inverse Problems for Identification of Memory Kernels in Viscoelasticity journal March 1997
Convergence of the generalized-α scheme for constrained mechanical systems journal July 2007
Deep Learning-Based Numerical Methods for High-Dimensional Parabolic Partial Differential Equations and Backward Stochastic Differential Equations journal November 2017
Physics-informed neural networks for multiphysics data assimilation with application to subsurface transport journal July 2020
Splitting schemes for poroelasticity and thermoelasticity problems journal July 2014
An inverse model and mathematical solution for inferring viscoelastic properties and dynamic deformations of heterogeneous structures journal March 2016
Physics-informed neural networks: A deep learning framework for solving forward and inverse problems involving nonlinear partial differential equations journal February 2019
Learning constitutive relations from indirect observations using deep neural networks journal September 2020
Learning constitutive relations using symmetric positive definite neural networks journal March 2021
Characterisation of viscoelastic layers in sandwich panels via an inverse technique journal November 2009
Inverse strategies for the identification of elastic and viscoelastic material parameters using full-field measurements journal April 2007
Physics‐Informed Deep Neural Networks for Learning Parameters and Constitutive Relationships in Subsurface Flow Problems journal May 2020
Deep learning journal May 2015
SciPy 1.0: fundamental algorithms for scientific computing in Python journal February 2020
Experimental and Numerical Sensitivity Assessment of Viscoelasticity for Polymer Composite Materials journal January 2020
A Method of Computation for Structural Dynamics journal July 1959
Inverse estimation of viscoelastic material properties for solids immersed in fluids using vibroacoustic techniques journal January 2007
Scaling of temperature‐ and stress‐dependent viscosity convection journal February 1995
Solving high-dimensional partial differential equations using deep learning journal August 2018
Measurement of viscoelastic properties of homogeneous soft solid using transient elastography: An inverse problem approach journal December 2004
AMGCL: An Efficient, Flexible, and Extensible Algebraic Multigrid Implementation journal May 2019
Optimal Solvers for PDE-Constrained Optimization journal January 2010
A Limited Memory Algorithm for Bound Constrained Optimization journal September 1995
Line search algorithms with guaranteed sufficient decrease journal September 1994
A Brief Review of Elasticity and Viscoelasticity for Solids journal February 2011