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Crack Propagation in Bamboo's Hierarchical Cellular Structure

Submitted by Yang Lu on

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 ?

Submitted by nishantsinghbme on
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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.

FSW in ANSYS

Submitted by Viren Parikh on

Hello ANSYS masters, I am student of M.Tech and I am currently doing my dissertation on Friction stir welding stimulation using ANSYS Mechnical APDL. The problem I face is in defining the time substep in the load step defined as follows

Cohesive Zone modelling

Submitted by phanikumar376 on

Dear all,

           I am trying to study the fracture at bonded interfaces using cohesive zone model in Abaqus. I am going through the abaqus manual but it was not clear how to insert the chosive elements in the model. How to model these chosive elements. Can anyone help in modelling the chosive elements.   

A computational study of flexoelectricity

Submitted by Amir Abdollahi on

Flexoelectricity is a size-dependent electromechanical mechanism coupling polarization and strain gradient. It exists in a wide variety of materials, and is most noticeable for nanoscale objects, where strain gradients are higher. Simulations are important to understand flexoelectricity because experiments at very small scales are difficult, and analytical solutions are scarce. Here, we computationally evaluate the role of flexoelectricity in the electromechanical response of linear dielectric solids in two-dimensions.

VUMAT Subroutines for multi-phase material behavior.

Submitted by simumano on

Hi everyone. I would like to know how to get started with a VUMAT subroutine for multiphases for example a subroutine for pore water and sand. It could be helpful when anyone could share VUMAT subroutines for learning such complex programmings. Could be appreciated when some one teaches with equations. thank you.

coupled temp-displacement analysis ABAQUS CAE: predefined field problem

Submitted by manolo on
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Hi I'm new in abaqus, I'm trying to make a coupled temp-displacement analysis with abaqus, but I cant fix an initial velocity in the predefined field in the inital step (I mean I can, but it doesn't work during the calculations), I already did the same thing with dynamic implicit analysis and it worked good