Segment 1 of lecture 7. Anisotropic Elasticity Course webpage with notes: dyedavid.com/mse203 Lecturer: Dr David Dye. Licence: Creative Commons Department of Materials, Imperial College, London, UK
Hi Professor, thanks for the useful lectures. You mentioned doing a couple of problems at the end of the video, but I couldn't find them online, it was the same for isotropic elasticity lecture. Are the problems and examples available online?
The quality of the content is very nice, the way how you teach is also very nice, but technically unpleasant to watch. I always need to find a frame that you didn't cover what is written on the board. There are many easy solutions for it. I know this is a free course and no right to complain but I just wanted to drop a feedback to here in the perspective of a student. Thanks, Cheers!
Thank you Professor. You explain clearly and easily. But, do you have an explanation of strain energy density in anisotropic materials ? anyway, thank you Professor
+Prathamesh K Nye's little book is your friend. I think your answer is 6 - I don't have Nye to hand but quick googling suggest 6 - see www.iaeng.org/IJAM/issues_v42/issue_3/IJAM_42_3_10.pdf and link.springer.com/chapter/10.1007%2F978-3-0348-9229-2_12#page-1.
Thanks for your explanations. I wrote to just mention a typo in your formulations. When you wrote the relation between stress and strain tensors in terms of the compliance tensor at time 3:30, you forgot to modify the indices and you wrote on the board S_ijkl \sigma_ij = \epsilon_kl instead of S_ijkl \sigma_kl = \epsilon_ij. Although this formulation is correct for hyperelastic materials having the symmetry S_ijkl=S_klij, at that time of lecture you talk about the most general form of C and S tensors and I think you should add a note to your video.
would you be able to guide me on how to derive a stiffness matrix of an orthotropic beam element?
Hi Professor, thanks for the useful lectures.
You mentioned doing a couple of problems at the end of the video, but I couldn't find them online, it was the same for isotropic elasticity lecture.
Are the problems and examples available online?
Very useful!
Nice way of explaining sir
The quality of the content is very nice, the way how you teach is also very nice, but technically unpleasant to watch. I always need to find a frame that you didn't cover what is written on the board. There are many easy solutions for it. I know this is a free course and no right to complain but I just wanted to drop a feedback to here in the perspective of a student. Thanks, Cheers!
Thank you Professor.
You explain clearly and easily.
But, do you have an explanation of strain energy density in anisotropic materials ?
anyway, thank you Professor
for trigoanl class 32 how many independant component ?
Thanks in advance
+Prathamesh K Nye's little book is your friend. I think your answer is 6 - I don't have Nye to hand but quick googling suggest 6 - see www.iaeng.org/IJAM/issues_v42/issue_3/IJAM_42_3_10.pdf and link.springer.com/chapter/10.1007%2F978-3-0348-9229-2_12#page-1.
those are the basics,
Thanks for your explanations. I wrote to just mention a typo in your formulations. When you wrote the relation between stress and strain tensors in terms of the compliance tensor at time 3:30, you forgot to modify the indices and you wrote on the board S_ijkl \sigma_ij = \epsilon_kl instead of S_ijkl \sigma_kl = \epsilon_ij. Although this formulation is correct for hyperelastic materials having the symmetry S_ijkl=S_klij, at that time of lecture you talk about the most general form of C and S tensors and I think you should add a note to your video.