p. 1426, last par., should read (revision in [brackets]): "Satin weaves are depicted on Figs. 1c, 3d and e, again with the fills horizontal and the warps vertical. A [satin] is generated by..."
See also http://dx.doi.org/10.1016/j.compstruct.2010.11.014
and http://dx.doi.org/10.1016/j.compstruct.2010.11.016
The longitudinal compression strength of unidirectional composites F1c, also called Xc, is very difficul to test for, so often you don't have the value for the particular material (fiber, matrix, volume fraction) that you wish to use. Further, just having data does not tell you what paramaters really influence its value--it is not the compressive strength of the fiber, I can assure you. So, there is a simple formula that you can use to predict its value and also to understand what are the parameters that really affect the compression strength of the composite.
Any one help me out ,How to estimate stiffness matrix of beam using modal experimental method?
This post is to share where to go for the computational modelling. Should computation modelling focus on advance the solver convergence or focus on experiment verification?
The experiment verification always expensive and high cost involved. For solver convergence, it is always take time but less cost involved, however even with advance computational power and smart equation, we always face problem on verfiy our result through experiement stage.
I want to model wire rope/sling as 1d-element in abaqus.
let me know the suitable 1d-elemet for wire rope/sliing.
Hello:
I have written a UMAT subroutine similar to the one shown in abaqus 6.11 subroutine manual 1.1.40 with a slight differences indicative of the material's rheological model.
my expanded isotropic model looks like:
sigma_x - sigmav_x/3 + vbar*sigma_dot_x + kappa*sigma_dot_x =
lambda*eplv + 2*mu*epl_x + lamdabar*eplv_dot_x +2*mubar*epl_x
where:
sigma = stress
epl = strain
_dot_ are my rate change with time
sigmav = sigmaxx + sigma_yy + sigma_zz ( hydrostatic stress)
I need to know how to to determine the work needed to push water through a 20 foot thinwall plastic tube ( Polyethylene) with an inner diameter of 4 mm at a rate of 100, 250 and 500 mL/minute. The tube is level throughout. What pressure will I need? How much energy does this take ? Accuracy not needed just an approx figure will be fine at this time, as we will run testing later. The reason for need this is to select a pump for the job.
Thank you so much .
