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How to extend crack in Mixed mode crack growth in Ansys ?

Submitted by saimohan35 on
research
3-D crack
3D crack Modeling
3D crack analysis using ansys
3D Fracture analysis thru Ansys
Computational Fracture Mechancis

Hi, I am doing project on mixed mode crack growth of semi elliptical crack in gas turbine components under cyclic loading. Ansys has capability for finding J,K using CINT command. But, In mixed mode crack growth, i dont know how to deal with nodes and how to create random crack with new node coordinates obtained from previous steps. If you have any ansys code related to creating crack and finding fracture parameters like K, J (mode 1 or mixed mode), Can you please give me the code.

Thanks

(I cant use any other software, only Ansys)

Can any one provide any apdl code to perform automatic fatigue crack growth ??

Submitted by saimohan35 on
research
3D fracture
3D Fracture analysis thru Ansys
3D crack analysis using ansys
3D crack Modeling

Hi, I am using Ansys Apdl for 3d fatigue crack growth. I need any one code to understand how it can be automized (recreating crack with node shift and remeshing).

 

Thank you

Gravity induced crease-to-wrinkle transition in soft materials

Submitted by Xudong Liang on
research
wrinkle
crease

Creasing and wrinkling instability are two distinct surface instability modes characterized by localized singular folds and continuous smooth undulations, respectively. In this article, we show that the surface of a soft elastomer may develop wrinkles or creases under compression and the action of gravitational force, depending on the magnitude of gravitational force.

Ph.D. Positions in Mechanics of Soft Materials at Michigan State University

Submitted by Dargazany on
research
phd
position
mechanics
modeling
multi-scale
soft material

Our Group of High Performance Materials in Enviormental & Civil Engineering Department at Michigan State University has an openings for PhD positions to work on Multiscale Modeling of Soft Materials starting sSummer  or Fall 2015.

Post buckling of stiffened composite panel

Submitted by shabber hussain on
research

Dear all,

I am working on postbuckling of stiffened composite panels using ANSYS. I have done few experiments and trying to simulate in ANSYS. I have performed nonlinear analysis using arc length method and the load-axial displacement curve obtained is too stiff (having 60% higher slope) compared to the experimental curve. I think BCs, material properties and loading is fine in the model. Can anyone have any suggestions to improve my results? 

Effect of variant strain accommodation on the three-dimensional microstructure formation during martensitic transformation: Application to zirconia

Submitted by mohsenzaeem on
research
phase field model
Martenistic Phase Transformation
3D

This paper computationally investigates the effect of martensitic variant strain accommodation on the formation of microstructural and topological patterning in zirconia. We used the phase-field technique to capture the temporal and spatial evolution of embryonic formation of the monoclinic phase in tetragonal single crystals. The three-dimensional simulations were able to capture the formation of all the possible monoclinic variants. We used the multivariant single embryo as an initial condition to mitigate the lack of nucleation criteria at the mesoscale.

wet adhesion between two soft layers

Submitted by Cai Shengqiang on
research
adhesion
soft materials

Two solids can adhere to each other in the presence of a liquid bridge between them, which is called wet adhesion. When the solid is soft, the liquid bridge can cause deformation in the material, and in turn, the deformation may have dramatic effects on the wet adhesion. To investigate the effect, in this article, we calculate the deformation in two soft layers with different separations and connected by a liquid bridge. We illustrate the effect of deformation in the soft layers on the adhesive force.

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