Results 11 to 20 of about 13,942,741 (235)

The creep behavior of simple structures with a stress range-dependent constitutive model [PDF]

open access: yes, 2012
High temperature design remains an issue for many components in a variety of industries. Although finite element analysis for creep is now an accessible tool, most analyses outside the research domain use long standing and very simple constitutive models
Boyle, James
core   +5 more sources

A constitutive model considering post-liquefaction deformation based on the logarithmic skeleton curve

open access: yesRock and Soil Mechanics, 2021
Most of the constitutive model for liquefaction analysis cannot simulate the large post-liquefaction deformation of saturated sand, and there is little research on the nonlinear time-domain large deformation constitutive relationships suitable for ...
DONG Qing   +4 more
doaj   +1 more source

Comparison of the Warm Deformation Constitutive Model of GH4169 Alloy Based on Neural Network and the Arrhenius Model

open access: yesMetals, 2022
In order to realize a better description of plastic flow behavior in the warm deformation process of GH4149, the GH4169 superalloy was compressed by Gleeble-3800 at a temperature of 700–900 °C and a strain rate of 0.01–10 s−1.
Peng Cheng   +4 more
doaj   +1 more source

Review on constitutive models of road materials

open access: yesJournal of Road Engineering, 2022
Road material constitutive model is the essential condition of pavement structure design, calculation, and maintenance decision. Experts have conducted in-depth studies on the problems and proposed many meaningful constitutive models.
Qian Li   +3 more
doaj   +1 more source

Flow Stress Description Characteristics of Some Constitutive Models at Wide Strain Rates and Temperatures

open access: yesTechnologies, 2022
The commonly employed mathematical functions in constitutive models, such as the strain hardening/softening model, strain-rate hardening factor, and temperature-softening factor, are reviewed, and their prediction characteristics are illustrated.
Hyunho Shin   +3 more
doaj   +1 more source

Experimental study and modification of the constitutive model of superelastic SMA considering multi-factor effects

open access: yesCase Studies in Construction Materials, 2022
The constitutive model is the basis and key for the application of materials in practical engineering. Numerical simulation has become one of the most important methods of scientific research, and an accurate constitutive model provides guarantees for ...
Ran Li, Qifeng Chen, Zhifeng Xu, Bo Hu
doaj   +1 more source

A phenomenological constitutive model for the viscoelastic deformation of elastomers [PDF]

open access: yes, 2020
This study proposes a one-dimensional constitutive model for elastomeric materials based on recent observations regarding the separation of elastic and viscous contributions in uniaxial cyclic tensile experiments on EPDM rubber. The focus is on capturing
Annarasa, Vinotharan   +2 more
core   +1 more source

An Eigendecomposition-based and Mesh-sensitivity Reduced Constitutive Model for Nonlinear Analysis of Concrete Structures under Non-proportional Cyclic Loading [PDF]

open access: yes, 2022
Emerging 3D printed concrete techniques has raised numerous possibilities in contemporary architectural creations that are often beyond the scope of prevailing structural design standards.
Huy Pham, Phu Anh   +11 more
core   +1 more source

Stress relaxation and elastic follow-up using a stress range-dependent constitutive model [PDF]

open access: yes, 2012
Despite the availability of detailed nonlinear finite element analysis, some aspects of high temperature design can still be best addressed through more simplified methods.
Boyle, James
core   +4 more sources

Plastic Deformation Behavior of Metal Materials: A Review of Constitutive Models

open access: yesMetals, 2022
The deformation behavior of metal materials in plastic forming is intimately related to deformation conditions, which are greatly affected by deformation rate, forming temperature, and plastic variables.
Xiangdong Jia   +3 more
doaj   +1 more source

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