Results 31 to 40 of about 462,318 (290)

Mathematical Models Describing the Creep and Stress Relaxation Behavior of False Banana’s Fiber (Ensete Ventricosum)

open access: yesJournal of Natural Fibers, 2021
Viscoelastic behavior is an important parameter for the use of natural fibers in technical applications. Mathematical models to describe the relaxation and creep behavior of Ensete fibers were investigated.
Č. Mizera   +3 more
doaj   +1 more source

Nonlinearly Viscoelastic Response of Glassy Polymers [PDF]

open access: yes, 2002
This thesis consists of three chapters. After a brief introduction on the general aspects of polymer characterization and viscoelasticity in the first chapter, all major features of this research project are described in the following two chapters ...
Zhu, Weidong
core   +1 more source

Complex interplay between stress perturbations and viscoelastic relaxation in a two-asperity fault model [PDF]

open access: yesNonlinear Processes in Geophysics, 2018
We consider a plane fault with two asperities embedded in a shear zone, subject to a uniform strain rate owing to tectonic loading. After an earthquake, the static stress field is relaxed by viscoelastic deformation in the asthenosphere.
E. Lorenzano, M. Dragoni
doaj   +1 more source

Gravitational viscoelastic relaxation of eccentrically nested spheres [PDF]

open access: yesGeophysical Journal International, 1999
SUMMARY We present a semi-analytical solution to the 2-D forward modelling of viscoelastic relaxation in a heterogeneous model consisting of eccentrically nested spheres. Several numerical methods for 2-D and 3-D viscoelastic relaxation modelling have been applied recently, including finite-element and spectral-finite-diVerence schemes.
Martinec, Z., Wolf, D.
openaire   +3 more sources

The role of relaxation and retardation phenomenon of Oldroyd-B fluid flow through Stehfest’s and Tzou’s algorithms

open access: yesNonlinear Engineering, 2022
Delayed response (delay of the elasticity) and time needed for initial stress can lead to relaxation and retardation phenomenon; this is because of the consistent behavior of viscoelastic fluid on thermodynamic principles.
Awan Aziz Ullah   +4 more
doaj   +1 more source

Effects of Allicin Supplementation on the Mechanical and Viscoelastic Properties of the Tibia in Bovans Brown Hens

open access: yesApplied Sciences
Bone tissue exhibits viscoelastic behavior, and stress relaxation analysis provides valuable insight into its time-dependent mechanical performance. This study aimed to evaluate the effects of allicin supplementation on the mechanical and viscoelastic ...
Anna Skic   +4 more
doaj   +1 more source

New AI‐Assisted Approach for Expanding the Solution Space: Application to Lattice Structure Design

open access: yesAdvanced Engineering Materials, EarlyView.
This work introduces an innovative framework for designing structured materials by ex panding the design space through reparameterization of qualitative variables into continuous structural descriptors. Combined with machine‐learning‐based prediction and multi‐objective optimization, the approach enables the discovery of novel lattice architectures ...
G. H. Gahimbare   +5 more
wiley   +1 more source

A Temperature-Dependent Discrete Contact Model for Linear Viscoelastic Bodies

open access: yesApplied Sciences
A temperature-dependent discrete contact model for linear viscoelastic bodies is developed to predict normal contact forces at different prescribed temperatures.
Man Gong, Mingru Lei, Haiyong Peng
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Discrepancies Between Micro Versus Macroscale Viscoelastic Properties in a Microplastic‐Tissue Composite Model

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the discrepancies between bulk mechanics and spatial mapping in a tissue‐mimetic hydrogel model. Microplastic particles create localized stiff mechanical microenvironments that are detectable by cellular‐scale nanoindentation but leave bulk properties unchanged as measured by rheology.
Ahron T. Verschleisser   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy