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Young Modulus versus temperature

Submitted by Martin Della Torre on

Hi.

This is a material's problem.

I'm trying to simulate in FEA (Ansys) a part of a rectangular duct. this duct works with a flue gases qith elevated temparature (aporx 300°C).

Does anyone knows any standard (ASTM or similar) or any bibliography who gives data in form of tables or graphics that shows the variation of young modulus against temperature variation for materials?

 

Thanks

Martin

application of cohesive element to concrete cracks in Abaqus

Submitted by Chris Yang on

Hi everybody!

I am now using Abaqus to model concrete cracks by using cohesive element and I have got two questions regarding this:

1. cohesive element, as known, is often employed to model interface especially when the integrity and strength of the interface is of interest. For my problem, there is no real interface, however, I impose a cohesive element interface artificially in the concrete and to see the crack propagation. Is this applicable theoretically?

A wonderful collection of quotes from Leonardo da Vinci, each fantastic

Submitted by Mike Ciavarella on

A well-spent day brings happy
sleep.

Leonardo da Vinci



All our knowledge has its origins
in our perceptions.

Leonardo da Vinci



Although nature
commences with reason and ends in experience it is

necessary for
us to do the opposite, that is to commence with experience

and
from this to proceed to investigate the reason.

Leonardo da
Vinci



Anyone who conducts an argument by appealing to
authority is not using

his intelligence; he is just using his
memory.

Does a scientist who has had three patents in the past five years, but only three papers, each cited just three times, deserve m

Submitted by Mike Ciavarella on

From the blogosphere

Nature 453, x (2008). doi:10.1038/7196xc

Does a scientist who has had three patents in the past five years,
but only three papers, each cited just three times, deserve more
recognition than one with five Nature papers and 1,000 citations? 

 

Can anyone download the full paper I have no access to Nature!!!! 

A crucial text from Jim Rice of his Timoshenko's medal speach.

Submitted by Mike Ciavarella on



It is difficult to reminisce over my own formative years without sensing

the sharp contrast with the far more difficult situation faced by the

young generation today. My generation, and especially my own narrow age

range within that generation, had things easier, I think, than any group

before or after. I entered Lehigh for undergraduate studies one year

after Sputnik. It was a time when support for science and engineering

was enlarging fast, when opportunities were abundant. There were plenty