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Multi-angle property analysis and stress–strain curve prediction of cementitious sand gravel based on triaxial test [PDF]

open access: yesScientific Reports
In order to further promote the application of cementitious sand gravel (CSG), the mechanical properties and variation rules of CSG material under triaxial test were studied. Considering the influence of fly ash content, water-binder ratio, sand rate and
Qingqing Tian   +4 more
doaj   +2 more sources

Theoretical study on loading history dependence of dynamic failure strength for brittle materials [PDF]

open access: yesScientific Reports
Whether the dynamic failure strength of brittle materials is an intrinsic material property has been debated, owing to its dependence on loading history. To further study such a dependence, a characteristic time failure criterion for brittle materials is
Xiao Yang   +4 more
doaj   +2 more sources

Calibration of the Flow Curve Up to Large Strain Range by Incremental Sheet Forming Coupled with FEM Simulation

open access: yesMetals, 2022
Conventionally, a stress–strain curve for sheet materials is defined by the uniaxial tensile test; however, it is limited by the necking phenomena. The stress–strain curve in the post-necking range is determined using common hardening equations, such as ...
Young-Suk Kim   +3 more
doaj   +1 more source

Experimental study on change mechanism of coal and rock permeability under total stress and strain condition

open access: yesMeikuang Anquan, 2021
In order to study the permeability evolution law of coal and rock under the action of mining dynamic load, the Darcy law steady-state measurement method was adopted to conduct the stress-strain permeability experiment of coal and rock using the triaxial ...
XUE Junhua, LI Yanhe, LI Hongbiao, YUAN Zhandong, ZHAN Keliang
doaj   +1 more source

A Simplified Uniaxial Stress-strain Curve of Concrete and Its Application in Numerical Simulation [PDF]

open access: yesE3S Web of Conferences, 2021
Detennining the constitutive model is a key procedure in numerical simulation of concrete structures. The uniaxial stress-strain curve is important information to determine the concrete constitutive model.
Yafei Lou   +5 more
doaj   +1 more source

Predicting the complex stress-strain curves of polymeric solids by classification-embedded dual neural network

open access: yesMaterials & Design, 2023
Predicting stress–strain curves is key to facilitate the design of polymer materials and their products with tailored mechanical response. However, due to their structural complexity, polymeric solids generally feature complex stress–strain curves, which
Han Liu   +3 more
doaj   +1 more source

Determination of true stress-strain curve of type 304 and 316 stainless steels using a typical tensile test and finite element analysis

open access: yesNuclear Engineering and Technology, 2021
Knowing a material’s true stress-strain curve is essential for performing a nonlinear finite element analysis to solve an elastoplastic problem. This study presents a simple methodology to determine the true stress-strain curve of type 304 and 316 ...
Hyeong Do Kweon   +3 more
doaj   +1 more source

Study on closing and cracking stress calculation method of fractured rock

open access: yesFrontiers in Earth Science, 2023
Determining the characteristic stress intensity according to the rock stress-strain curve is significant significance for rock engineering. Nowadays, there are relatively mature methods for determining peak stress and damage stress.
Yue Qiang   +7 more
doaj   +1 more source

A method to determine the material constitutive model parameters of FGH4095 alloy treated by laser shock processing

open access: yesApplied Surface Science Advances, 2020
In order to determine the material constitutive model parameters of FGH4095 alloy treated by laser shock processing (LSP), the Johnson–Cook (J-C) plasticity model was selected.
Jiajun Wu   +6 more
doaj   +1 more source

Modeling seismic compression of unsaturated soils in the funicular regime [PDF]

open access: yesE3S Web of Conferences, 2023
A semi-empirical elasto-plastic constitutive model with a hyperbolic stress-strain curve was developed with the goal of predicting the seismic compression of unsaturated sands in the funicular regime of the soil-water retention curve (SWRC) during ...
McCartney John, Kinikles Dellena
doaj   +1 more source

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