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QLV (Quasi Linear Viscoelasticity) vs Linear Viscoelasticity

Submitted by Gungho on
Forums
Biomechanics Forum
Free Tags
hyperelasticity
qlv
linear viscoelasticity

Can anyone explain what is main difference between Linear Viscoelasticity vs qlv (Quasi linear Viscoelasticity) proposed by Fung.  As far as I understand stress relaxation function and elastic response functions separated and given in convolution form which provides "strain rate independent" results in qlv application.  



Is linear viscoelastic description is strain dependent?



A*STAR Investigatorship 2009: Prestigious Research Awards

Submitted by Yuhang Hu on
job
Singapore

SERC launched the A*STAR Investigatorships in 2007.
This prestigious award for top international young research talent,
tenable at our research institutes, aims to nurture young talent and
build R&D capabilities in Singapore. This year, the award is open
for applications in the following areas:



- Cognitive Systems, including Robotics

- Metamaterials and Plasmonics

- Bioenergy and Energy Storage Technologies

- Medical Technologies for Diagnostics



As

3 PhD Research Fellowships at the Department of Structural Engineering (IVT-18/09)

Submitted by leifh on
job

The Department of Structural Engineering announces 3 positions as
research fellows. The department has at present 21 professors, 7
adjunct professors, 3 in other academic positions, 3 adjunct associate
professors, and 50 research fellows.

The employment period is 4 years, and the positions are within these 4 core areas at the department:

Very fundamental questions on XFEM

Submitted by bruno-page on
Forums
Computational Mechanics Forum

1)XFEM is suitable in simulatng crack propogation problem because using conventional FEM this

would have required repeated meshing.This is what I've read in most introductory chapters regarding XFEM but what is

its application beyond crack propogation studies?

2)Parttion of unity framework:The main idea is to construct basis functions as products of piecewise shape functions

and local enriched basis functions.But my question is how the concept works in exactly smulating the requirement of

Shape of meniscus

Submitted by dirtbiker1824 on
Forums
Fluid Mechanics Forum

Hello All,

I am trying to find the governing equation to the shape of a meniscus outside of a small cylinder. I know that by solving the youngs-laplace equation this equation can be derrived, but that is beyond me. I need the equation to be height of meniscus as a function of radius. Any insight to this would be appriciated.

Thanks

Experimental analysis of prepreg tack

Submitted by LECAM on
research
Composites
tack
tackiness
prepreg
probe tack test

Dear all, I post a study dealing with tack of prepreg materials. This kind of composite materials is increasingly used in the design of structural parts, particularly in the aerospace industry.Tack is one of the major properties that governs the ability of prepreg to be laid up. To investigate this property, we have developed a probe tack test to evaluate the effect of the temperature, the contact time, the contact force and the debonding rate on it.

How to explain the limit load by stiffness matrix using finite element analysis?

Submitted by pfliu@zju.edu.cn on
research
convergence stiffness matrix finite element analysis

I always have a question about the convergence problem: when a structure reaches its maximum load-bearing ability, the solution will end if the newton method is used in the finite element analysis. Then which form the stiffness stiffness in the finite element analysis takes on?  Singular or ill-conditioning?  How to explain the appearance of maximum load by variable stiffness matrix?

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