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how can I deal with the thickness strain in the Shell elements (S4R) writing a VUMAT subroutine ?
Hey buddies
I am writing a constitutive relation in vumat for plane stress conditions with S4R elemet in the ABAQUS.
the problem is that the E33 is reported as zero where it is not zero and also the values for S11 and S22 are so large numbers.
ihave tried the code for 3D conditions and it work great with C3D8R element and the results are satisfactory where for the Shell elements by enforcing the S33=0, the E33 gets zero too.
does anybody have any solution?
thanks alot
The theoretical ultimate magnetoelectric coefficients of magnetoelectric composites by optimization design
This paper investigates what is the largest magnetoelectric (ME) coefficient of ME composites, and how to realize it. From the standpoint of energy conservation, a theoretical analysis is carried out on an imaginary lever structure consisting of a magnetostrictive phase, a piezoelectric phase, and a rigid lever. This structure is a generalization of various composite layouts for optimization on ME effect.
Surface Ripples of Polymeric Nanofibers under Tension: The Crucial Role of Poisson’s Ratio
Shan Tang, Ying Li, Wing Kam Liu and XiaoXu Huang
Crack Propagation in Bamboo's Hierarchical Cellular Structure
Bamboo, as a natural hierarchical cellular material, exhibits remarkable mechanical properties including excellent flexibility and fracture toughness. As far as bamboo as a functionally graded bio-composite is concerned, the interactions of different constituents (bamboo fibers; parenchyma cells; and vessels.) alongside their corresponding interfacial areas with a developed crack should be of high significance.
How to mesh , a solid/ shell hemisphere , hexdominant either by sweep or mapped meshing in ANSYS APDL ?
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Can anyone guide me how to mesh solid and shell 3d hemisphere with hex dominant approach in ansys mechanical APDL?
I found no such verification manual for 3d hemispherical meshing in ansys. What method should be applied and what element should be chosen appropriately to mesh this structure?
I have attached screen shot for your understanding of my problem.
Your response will be highly appreciated.