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Data-driven nonparametric identification of material behavior based on physics-informed neural network with full-field data
Abstract A Physics-Informed Neural Network (PINN) model is developed to extract material
behavior from full-field displacement data. The PINN model consists of independent …
behavior from full-field displacement data. The PINN model consists of independent …
Beyond Hopkinson's bar
In order to perform experimental identification of high strain rate material models, engineers
have only a very limited toolbox based on test procedures developed decades ago. The best …
have only a very limited toolbox based on test procedures developed decades ago. The best …
Investigation of the dynamic stress–strain response of compressible polymeric foam using a non-parametric analysis
Dynamic stress–strain response of rigid closed-cell polymeric foams is investigated in this
work by subjecting high toughness polyurethane foam specimens to direct impact with …
work by subjecting high toughness polyurethane foam specimens to direct impact with …
Ultra‐high‐speed full‐field deformation measurements on concrete spalling specimens and stiffness identification with the virtual fields method
F Pierron, P Forquin - Strain, 2012 - Wiley Online Library
For one decade, spalling techniques based on the use of a metallic Hopkinson bar in
contact with a concrete sample have been widely employed to characterise the dynamic …
contact with a concrete sample have been widely employed to characterise the dynamic …
In situ deformation characterization of density-graded foams in quasi-static and impact loading conditions
B Koohbor, S Ravindran, A Kidane - International Journal of Impact …, 2021 - Elsevier
Digital image correlation is utilized to characterize deformation and strain fields developed
within the layers of density-graded multilayered foam structures subjected to uniaxial quasi …
within the layers of density-graded multilayered foam structures subjected to uniaxial quasi …
Effect of specimen size, compressibility and inertia on the response of rigid polymer foams subjected to high velocity direct impact loading
The influences of specimen length-to-diameter ratio, material compressibility, and inertia on
direct impact response of high density closed-cell polymeric foam are investigated. High …
direct impact response of high density closed-cell polymeric foam are investigated. High …
Experimental investigation of the shear dynamic behavior of double-lap adhesively bonded joints on a wide range of strain rates
The main concern of this work is the mechanical characterization of adhesively bonded
assemblies under dynamic shear loading ranging from quasi-static (10− 4s− 1) up to high …
assemblies under dynamic shear loading ranging from quasi-static (10− 4s− 1) up to high …
Strain rate sensitivity of polyurea coatings: Viscous and elastic contributions
M Tripathi, S Parthasarathy, D Kumar, P Chandel… - Polymer Testing, 2020 - Elsevier
Polyurea, a reaction product of isocyanates and an amine blend has been reported to be
highly strain rate sensitive, which responds in its own unique way when subjected to …
highly strain rate sensitive, which responds in its own unique way when subjected to …
Tension testing of silicone rubber at high strain rates
L Guo, Y Lv, Z Deng, Y Wang, X Zan - Polymer Testing, 2016 - Elsevier
The effect of strain rate on the tension behavior of filled silicone rubber was investigated
over a wide range of strain rates. A non-contact optical measurement technique was used to …
over a wide range of strain rates. A non-contact optical measurement technique was used to …
Impact testing of polymeric foam using Hopkinson bars and digital image analysis
The present investigation aims at testing polymeric foam under impact loading using large
diameter nylon Hopkinson bars and optical field measurements. Accurate average stress …
diameter nylon Hopkinson bars and optical field measurements. Accurate average stress …