Ran Ma
Columbia University
21 Papers
23 Citations
Ran Ma is an academic researcher from Columbia University. The author has contributed to research in topics: Multiscale modeling & Grain boundary. The author has an hindex of 7, co-authored 16 publications. Previous affiliations of Ran Ma include Harbin Institute of Technology & University of Tennessee.
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Papers
Geometric deep learning for computational mechanics Part I: anisotropic hyperelasticity
TL;DR: A machine learning approach that integrates geometric deep learning and Sobolev training to generate a family of finite strain anisotropic hyperelastic models that predict the homogenized responses of polycrystals previously unseen during the training is presented.
218
FFT-based solver for higher-order and multi-phase-field fracture models applied to strongly anisotropic brittle materials
Ran Ma,WaiChing Sun +1 more
TL;DR: In this paper, a fast Fourier transform (FFT) based method was used to solve two phase field models designed to simulate crack growth of strongly anisotropic materials in the brittle regime.
58
Modeling the evolution of microtextured regions during α/β processing using the crystal plasticity finite element method
TL;DR: In this article, the role of forging direction on the mesoscale mechanical response of microtextured regions (MTRs) was investigated in Ti-6242 (Ti-6Al-2Sn-4Zr-2Mo) billet.
42
Molecular dynamics inferred transfer learning models for finite‐strain hyperelasticity of monoclinic crystals: Sobolev training and validations against physical constraints
TL;DR: A machine learning framework to train and validate neural networks to predict the anisotropic elastic response of a monoclinic organic molecular crystal known as β$$ \beta $$ ‐HMX in the geometrical nonlinear regime is presented.
27
Computational thermomechanics for crystalline rock. Part II: Chemo-damage-plasticity and healing in strongly anisotropic polycrystals
Ran Ma,WaiChing Sun +1 more
TL;DR: In this paper, a thermal-mechanical-chemical-phase field model was proposed to capture the multi-physical coupling effects of precipitation creeping, crystal plasticity, anisotropic fracture and crack healing in polycrystalline rock at various temperature and strain-rate regimes.
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