Results 1 to 10 of about 102,300 (202)

“Viscotaxis”- directed migration of mesenchymal stem cells in response to loss modulus gradient [PDF]

Acta Biomaterialia, 2021
Directed cell migration plays a crucial role in physiological and pathological conditions. One important mechanical cue, known to influence cell migration, is the gradient of substrate elastic modulus (E). However, the cellular microenvironment is viscoelastic and hence the elastic property alone is not sufficient to define its material characteristics.
Vardhman Kumar, Jayesh R Bellare, Satyajit Mayor   +2 more
exaly   +4 more sources

DYNAMIC DUROMETER MEASUREMENT OF YOUNG'S MODULUS AND LOSS FACTOR [PDF]

Le Journal de Physique IV, 1992
The Shore hardness tester is used extensively throughout industry to determine the static modulus of materials. The new apparatus described here extends the capability of an indentor type tester into the dynamic regime, and provides a measurement of the dynamic shear or Young's modulus and loss factor as a function of frequency.
Madigosky, W., Fiorito, R.
openaire   +3 more sources

Effect of microstructure on modulus loss at flexural mode and stress in sensor materials

Sensors and Actuators A: Physical, 2007
Abstract Anelastic behaviour of metals, resulting from internal friction and responsible of modulus loss, is one of the major mechanical properties of materials considered in the design of high accuracy measuring devices and sensors which are generally used in mass, force, pressure and dimensional metrology.
Bulent Aydemir
exaly   +3 more sources

Fabrication and Characterisation of Magnetorheological Shear Thickening Fluids

Frontiers in Materials, 2020
In this article, a magnetorheological shear thickening fluid (MRSTF) was fabricated based on magnetorheological (MR) material and shear thickening fluid (STF).
Vladimir Sokolovski, Tongfei Tian, Jie Ding, Weihua Li   +3 more
doaj   +1 more source

Rheological and Viscoelastic Properties of Chitosan Solutions Prepared with Different Chitosan or Acetic Acid Concentrations

Foods, 2022
Chitosan (Ch) is a partially crystalline biopolymer, insoluble in pure water but soluble in acid solutions. It has attracted interest from researchers to prepare solutions using different acid types and concentrations.
Paulo José do Amaral Sobral, Gebremedhin Gebremariam, Federico Drudi, Ana Cristina De Aguiar Saldanha Pinheiro, Santina Romani, Pietro Rocculi, Marco Dalla Rosa   +6 more
doaj   +1 more source

The nature of the β -peak in the loss modulus of amorphous solids [PDF]

EPL (Europhysics Letters), 2012
Glass formers exhibit, upon an oscillatory excitation, a response function whose imaginary and real parts are known as the loss and storage moduli respectively. The loss modulus typically peaks at a frequency known as the αfrequency which is associated with the main relaxation mechanism of the super-cooled liquid.
Yossi Cohen, Smarajit Karmakar, Itamar Procaccia, Konrad Samwer   +3 more
openaire   +3 more sources

Automated dynamic Young's modulus and loss factor measuremeats [PDF]

The Journal of the Acoustical Society of America, 1979
A progressive wave apparatus featuring an automated data processor is described. The apparatus accurately determines the propagation constants of an extensional acoustic wave by exciting one end of a strip of material while the other end is suspended under constant tension.
Walter M. Madigosky, Gilbert F. Lee
openaire   +1 more source

Degradation of Epoxy–Particles Composites Exposed to UV and Gamma Radiation

Chemistry, 2023
In the design and fabrication of any structural system for space application, balance between mass, stiffness and strength is crucial. Structures in space environments are exposed to high radiation levels and thermal shock, due to the sun irradiance and ...
Mauricio Torres, Louise Burdin, A. Victoria Rentería-Rodríguez, Edgar A. Franco-Urquiza   +3 more
doaj   +1 more source

Review of viscoelastic constitutive relation of rubber materials

Hecheng xiangjiao gongye, 2022
The research status of viscoelastic constitutive relationship of rubber materials at home and aboard were systematically summarized and analyzed from 3 aspects of influencing factors of viscoelastic properties, viscoelastic constitutive model and related
DING Jun1,2, SUO Shuang-fu3, ZHANG Qi4, MENG Guo-ying1
doaj   +1 more source

A comparative study of viscoelastic characteristics in polymer composite with respect to the damping performance and structural behavior [PDF]

Engineering and Technology Journal
This study systematically investigates the viscoelastic characteristics and damping performance of polymer composites, examining the interplay between filler morphology, matrix-filler interactions, and structural behavior.
Rafal Hameed
doaj   +1 more source