Results 31 to 40 of about 101,495 (322)

Quantitative characterization of viscoelastic behavior in tissue-mimicking phantoms and ex vivo animal tissues. [PDF]

open access: yes, 2018
Viscoelasticity of soft tissue is often related to pathology, and therefore, has become an important diagnostic indicator in the clinical assessment of suspect tissue.
Bajwa, Neha   +7 more
core   +6 more sources

Long-Term Viscoelastic Behavior of Polyisobutylene Sealants before and after Thermal Stabilization

open access: yesPolymers, 2023
Polyisobutylene (PIB) is commonly used as a primary sealant in multi-layer insulating glazing elements, where temperatures often exceed 100 °C. At such conditions, PIB undergoes structural changes, causing different relaxation dynamics and leading to decreased lifetime of the material.
Urška Gradišar Centa   +6 more
openaire   +2 more sources

Nonlinear Viscoelastic-Plastic Creep Model of Rock Based on Fractional Calculus

open access: yesAdvances in Civil Engineering, 2022
A rock creep constitutive model is the core content of rock rheological mechanics theory and is of great significance for studying the long-term stability of engineering.
Erjian Wei   +6 more
doaj   +1 more source

Nonlinear Creep Model of Deep Gangue Backfilling Material and Time-Dependent Characteristics of Roof Deformation in Backfilling Mining

open access: yesGeofluids, 2020
With the gradual increase in mining depth of coal resource exploitation, deep backfilling mining has effectively solved the impact of strong deep mine pressure and strong mining disturbances.
Peng Huang   +4 more
doaj   +1 more source

Blow up of solutions of two singular nonlinear viscoelastic equations with general source and localized frictional damping terms

open access: yesAdvances in Difference Equations, 2020
This work studies the blow-up result of the solution of a coupled nonlocal singular viscoelastic equation with general source and localized frictional damping terms under some suitable conditions.
Salah Boulaaras   +3 more
doaj   +1 more source

An analytical model for 3D consolidation and creep process of layered fractional viscoelastic soils considering temperature effect

open access: yesSoils and Foundations, 2022
The behavior of long-term deformation of saturated soil under external loads has been one of the research focuses in geological engineering and geotechnical engineering.
Lujun Wang
doaj   +1 more source

Finite element approximation of the viscoelastic flow problem: a non-residual based stabilized formulation [PDF]

open access: yes, 2017
In this paper, a three-field finite element stabilized formulation for the incompressible viscoelastic fluid flow problem is tested numerically. Starting from a residual based formulation, a non-residual based one is designed, the benefits of which are ...
Castillo del Barrio, Ernesto   +1 more
core   +3 more sources

On a viscoelastic heat equation with logarithmic nonlinearity

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
This work deals with the following viscoelastic heat equations with logarithmic nonlinearity \begin{align*} u_t-\Delta u+\int_{0}^{t}g(t-s)\Delta u(s)ds=\vert u\vert^{p-2}u\ln\vert u\vert.
Nguyen Van Y, Nhan Le, Le Xuan Truong
doaj   +1 more source

Short‐Term Viscoelastic Properties of Bloodmeal‐Based Thermoplastics

open access: yesAdvances in Polymer Technology, 2014
ABSTRACTThe effects of sodium sulfite (SS) content and injection molding temperature on the viscoelasticity of bloodmeal‐based thermoplastics were assessed using creep, recovery, and stress relaxation. Both SS and processing temperature affected standard mechanical properties and time‐dependent behavior.
James Michael Bier   +3 more
openaire   +1 more source

Study on Stability of Elastic Compression Bending Bar in Viscoelastic Medium

open access: yesApplied Sciences, 2023
In the southeastern coastal regions of China, thick layers of marine soft soil are widely distributed, exhibiting characteristics such as high compressibility, high porosity, low strength, high sensitivity, and easy thixotropy, and these viscoelastic ...
Xiaochun Zhang, Jianhan Hu, Shuyang Chen
doaj   +1 more source

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