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tensile test

Wide Width Tensile Testing

Submitted by Deniz Yalcin on
industry
tensile test
Geotextiles
ASTM

Tensile testing is among the most standard tests performed by universal testing machines yet depending on how the test specimen is used in its native environment, setting up the tensile test method is not always straightforward. Wide width tensile testing is a type of tensile testing procedure used with specimens that are prepared with wider width than the standard tensile specimen coupons. This blog posts covers wide width tensile testing, standards outlining wide width testing methods, and the necessary equipment.

Bridgman and tensile test

Submitted by admp on
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Bridgman

Dear all I came up with some stress distributions which exist in a cylindrical specimen in a tensile test. However, I cannot understand how these formulas were gotten. There is a reference to a Bridgman paper (1944). Is there anyone who can give some inputs abouts this?

 

Thanks in advance 

Tensile testing curve and fracture toughness relation

Submitted by jjamali on
education
fracture toughness
tensile test
SED

Hello everyone,

I am studying fracture of polymer composites.

I had a question I want to relate fracture toughness of composite to the composite stress-strain curve found from simple tensin test(on samples with no notch or pre-existing crack), can anyone give me a hint , how to do it?

Tensile test under LS-DYNA

Submitted by Manaliac on
education
Plasticity
metal
ls-dyna
tensile test
ductile

Dear all,

I would like to run a tensile test under ls-dyna of a mild steel  and
apply a 7000 N load to the dog bone specimen on a explicite scheme.

Unfortunately, I
have wild deformations ( and an error) on the nodes on edges where the
load is applied, so can you please tell me what are the importants
constants (like time termination, mass scale,...) and how to perform a
perfect run?

 

Have a good day,

 

Thank you

M.

Source truncation and exhaustion: Insights from quantitative in-situ TEM tensile testing

Submitted by Daniel Kiener on
research
dislocation mechanics
in situ TEM deformation
tensile test
exhaustion hardening
spiral sources

‚Source truncation and exhaustion: Insights from quantitative in-situ
TEM tensile testing' by D. Kiener and A.M. Minor (http://dx.doi.org/10.1021/nl201890s).

Post necking behavior (Steel)

Submitted by PKS on
tensile test
stress-strain curve
swift parameters

I am simulating the tensile test of steel specimen to confirm that
resulting force displacement data matches with experiment. Since the
true stress true strain formulas are not valid beyond necking i have to
rely on actual neck measurements of flat sheet geometry. I have
identified swifts parameter also to use in the material model but some
how i am unable to match my results beyond necking. Any suggestions??

Flow stress

Submitted by Bastian Boe on
education
tensile test
flow stress
cold rolling
plane strain

Hello

I am working on a thesis project dealing with flow stress in cold rolling, a plane strain operation. To determine the flow stress, tensile tests were carried out. I am aware, that the engineering strain/stress hast to be transfered to the true strain/stress and then the true strain/stress from the tensile test has to be mulitplied with the Von Mises yield criterion to yield the correspondent compressive flow stress in the rolling situation.

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