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Viscoelastic (generalized maxwell) model in MSC.Marc or ABAQUS

Submitted by Roham Solasi on Tue, 08/07/2007 - 18:48

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Greetings all,

I am trying to use gerenalized maxwell viscoelastic model for polyimide polymer films (Kapton) in MSC Marc (or ABAQUS). I have never used the prony series representation of the maxwell model (hereditary integral approach). Has anyone ever used MSC Marc to incorporate the prony series relaxation to the material? or ABAQUS? Here is my game plan for doing this:

Atomistic simulations of crack nucleation and intergranular fracture in bulk nc Ni

Submitted by Ajing Cao on Tue, 08/07/2007 - 01:10

nanocrystalline materials

Molecular Dynamics Simulation of Small Metallic Nanowires

Submitted by Adrian S. J. Koh on Thu, 08/02/2007 - 08:45

Attached is a post-print of one of my journal papers submitted in 2005. A brief description of my paper is as follows:

Journal Club Theme of August 2007: Nanoindentation with focus on soft matter

Submitted by VirginiaLFerguson on Wed, 08/01/2007 - 07:25

Resdiual Stressed Indentation

Submitted by kashoo on Mon, 07/30/2007 - 13:49

research

nanoindentation

How can we see load dipslacement cyrve of residual stressed material. I mean I m interested in extracting indentation properties from ABAQUS for material which has got some pre stress in terms of residual stress. What is procedure of assigning residual stress to some material in ABAQUS?

Reduce Time

Submitted by shengke zhi on Mon, 07/30/2007 - 12:50

research

The time reduction has two methods, including hardware technique based and software technique based.

For hardware based method, you can use an independent timer to trigger off the counter to measure the number of speed pulses in a suitable frequency, such as 1MHz. In that case, the time interval you obtained is so small that it apporaches to zero.

Shengke's Research Blog

Submitted by shengke zhi on Mon, 07/30/2007 - 12:50

research

Instantaneous Angular Speed (IAS) is investigated for last 10 years in Condition Monitoring. The content of IAS is coming from angular speed. If the time taken is reduced apporaching to zero, we can measure the angle travelled to extract IAS, or if the angle travelled is reduced to zero, we can measure the time elapsed to extract IAS.

A 1st step to super-strong carbon materials? 'Graphene oxide paper', Nature July 26 issue

Submitted by Rod Ruoff on Fri, 07/27/2007 - 15:36

http://tinyurl.com/2ud2wn

Long URL: (http://www.scitizen.com/screens/blogPage/viewBlog/

sw_viewBlog.php?idTheme=5&idContribution=907

&PHPSESSID=c9ee7a1c644fb35c57fab30f6e0aafdf)

The above was written for the interested layperson who wants to learn more about science. It provides some context for our manuscript that has recently appeared in Nature.

Research Highlight: Graphene Oxide Paper

Submitted by Rui Huang on Fri, 07/27/2007 - 02:27

research

graphene

From Northwestern Engineering:

In a paper published July 26 in the journal Nature, researchers led by Rod Ruoff, John Evans Professor of Nanoengineering in the Robert R. McCormick School of Engineering and Applied Science, report on the development of "graphene oxide paper."