scholarly journals Viscoelastic response of impact process on dense suspensions

2021 ◽  
Vol 33 (9) ◽  
pp. 093110
Author(s):  
Pradipto ◽  
Hisao Hayakawa
Keyword(s):  
Viscoelastic Response ◽  
Impact Process ◽  
Dense Suspensions

scholarly journals Viscous-like forces control the impact response of shear-thickening dense suspensions

2021 ◽  
Vol 923 ◽  
Author(s):  
Marc-Andre Brassard ◽  
Neil Causley ◽  
Nasser Krizou ◽  
Joshua A. Dijksman ◽  
Abram. H. Clark
Keyword(s):  
Shear Thickening ◽  
Impact Response ◽  
Dense Suspensions ◽  
The Impact

Abstract

A Study on Evolution of Splat Radius and Temperature in Thermal Spray Process

2018 ◽  
Author(s):  
Manpreet Dash ◽  
Sangharsh Kumar ◽  
Partha Pratim Bandyopadhyay ◽  
Anandaroop Bhattacharya
Keyword(s):  
Heat Transfer ◽  
Thermal Spray ◽  
Molten Metal ◽  
Spray Deposition ◽  
Substrate Surface ◽  
Metal Droplet ◽  
Droplet Impingement ◽  
Impact Process ◽  
The Impact ◽  
Maximum Spreading

The impact process of a molten metal droplet impinging on a solid substrate surface is encountered in several technological applications such as ink-jet printing, spray cooling, coating processes, spray deposition of metal alloys, thermal spray coatings, manufacturing processes and fabrication and in industrial applications concerning thermal spray processes. Deposition of a molten material or metal in form of a droplet on a substrate surface by propelling it towards it forms the core of the spraying process. During the impact process, the molten metal droplet spreads radially and simultaneously starts losing heat due to heat transfer to the substrate surface. The associated heat transfer influences impingement behavior. The physics of droplet impingement is not only related to the fluid dynamics, but also to the respective interfacial properties of solid and liquid. For most applications, maximum spreading diameter of the splat is considered to be an important factor for droplet impingement on solid surfaces. In the present study, we have developed a model for droplet impingement based on energy conservation principle to predict the maximum spreading radius and the radius as a function of time. Further, we have used the radius as a function of time in the heat transfer equations and to study the evolution of splat-temperature and predict the spreading factor and the spreading time and mathematically correlate them to the spraying parameters and material properties.

scholarly journals Microrheology of semiflexible filament solutions based on relaxation simulations

Soft Matter ◽  
2021 ◽  
Author(s):  
L. K. R. Duarte ◽  
A. V. N. C. Teixeira ◽  
L. G. Rizzi
Keyword(s):  
Viscoelastic Response ◽  
Dilute Solutions ◽  
Computational Methodology

We present an efficient computational methodology to obtain the viscoelastic response of dilute solutions of semiflexible filaments.

scholarly journals TIDALLY HEATED TERRESTRIAL EXOPLANETS: VISCOELASTIC RESPONSE MODELS

2009 ◽  
Vol 707 (2) ◽  
pp. 1000-1015 ◽  
Author(s):  
Wade G. Henning ◽  
Richard J. O'Connell ◽  
Dimitar D. Sasselov
Keyword(s):  
Viscoelastic Response ◽  
Response Models

On the Nonlinear Viscoelastic Behaviour of the PVC-Coated Fabric

2010 ◽  
Vol 160-162 ◽  
pp. 1476-1481 ◽  
Author(s):  
Wu Lian Zhang ◽  
Xin Ding ◽  
Xu Dong Yang
Keyword(s):  
Viscoelastic Model ◽  
Constitutive Relationship ◽  
Viscoelastic Behaviour ◽  
Viscoelastic Response ◽  
Nonlinear Parameters ◽  
Creep And Recovery ◽  
Nonlinear Viscoelastic ◽  
Coated Fabric ◽  
Nonlinear Viscoelastic Model

The nonlinear viscoelastic response of a PVC-Coated Fabric has been studied. For the needs of the present study, creep and recovery tests in tension of both the warp and the weft directions at the different stress levels were executed while measurements were made of the creep and recovery strain response of the system. For the description of the viscoelastic behaviour of the material, Schapery’s nonlinear viscoelastic model was used. For the description of the nonlinear viscoelastic response and the determination of the nonlinear parameters, a method by using a combination of analytical formulations and numerical procedures based on a modified version of Schapery’s constitutive relationship where an instantaneous plastic and a transient plastic terms were added, has been developed. The method has been successfully applied to the current tests.

Emergence of Strong Nonlinear Viscoelastic Response of Semifluorinated Alkane Monolayers

Langmuir ◽  
2018 ◽  
Vol 34 (7) ◽  
pp. 2489-2496 ◽  
Author(s):  
Salomé Mielke ◽  
Taichi Habe ◽  
Mariam Veschgini ◽  
Xianhe Liu ◽  
Kenichi Yoshikawa ◽  
...  
Keyword(s):  
Viscoelastic Response ◽  
Nonlinear Viscoelastic

scholarly journals A Combined Impact-Process Evaluation of a Program Promoting Active Transport to School: Understanding the Factors That Shaped Program Effectiveness

2013 ◽  
Vol 2013 ◽  
pp. 1-14 ◽  
Author(s):  
S. Crawford ◽  
J. Garrard
Keyword(s):  
Mixed Methods ◽  
Process Evaluation ◽  
Active Transport ◽  
Primary Schools ◽  
Quantitative Data ◽  
Program Effectiveness ◽  
Primary School Children ◽  
Second Phase ◽  
Program Staff ◽  
Impact Process

This mixed methods study was a comprehensive impact-process evaluation of the Ride2School program in metropolitan and regional areas in Victoria, Australia. The program aimed to promote transport to school for primary school children. Qualitative and quantitative data were collected at baseline and followup from two primary schools involved in the pilot phase of the program and two matched comparison schools, and a further 13 primary schools that participated in the implementation phase of the program. Classroom surveys, structured and unstructured observations, and interviews with Ride2School program staff were used to evaluate the pilot program. For the 13 schools in the second phase of the program, parents and students completed questionnaires at baseline (N= 889) and followup (N= 761). Based on the quantitative data, there was little evidence of an overall increase in active transport to school across participating schools, although impacts varied among individual schools. Qualitative data in the form of observations, interviews, and focus group discussions with students, school staff, and program staff provided insight into the reasons for variable program impacts. This paper highlights the benefits of undertaking a mixed methods approach to evaluating active transport to school programs that enables both measurement and understanding of program impacts.

Sign in / Sign up

Export Citation Format

Share Document