Mechanics Courses Forum

Just released, 105 homework problems for mechanics of composite materials in Webwork environment. You can choose 105 randomized (each student gets different data) or the same 105 problems but not-randomized to make it easier to teach online (all students work with same data so it is easier to answer questions online). Take a look at this introductory Youtube video.  

https://www.youtube.com/watch?v=5QP145G7B6I

I read two books about  deviatoric tensor and skew tensor, but they have diffrerent denote.

One says the deviatoric tensor is decomposed from the symmetric tensor; the other one state that  from any tensor.

So, I was confused!

Hello....



I have one Finite Element Analysis Question.



For static analysis inertia and damping forces are negligible. To what extent must the load vary with respect to time, so as to consider Dynamic analysis instead of static analysis for a given FEA problem.

Hi all,

 Can anyone suggest me a good book for Limit Analysis (more specifically in the field of structural analysis)? I want to learn this method, so any book will be fine to study the concepts of limit analysis.

Thanks.

Can a single-degree-of-freedom elastic structure have two buckling loads?

We provide a positive answer to this question, see http://www.ing.unitn.it/~bigoni/multiple_bifurcations.html

Hi,

I am doing a self-study on continuum mechanics and have the following question on rotation tensors that I would like to get answered with your help:

How would one come up with the rotation tensor in 3D when the axis and the angle of rotation is given. For e.g., what would be the rotation tensor in cartesian coordinates when I would like to rotate the system about n(e_1 + e_2 + e_3) by say +60 deg.

Thanks in advance

Manoj