hi everyone my name is sarah
i am new to abaqus.i wonder if anyone can help me. i made a crack propagation model in 2D.unfortunately the crack wasn`t propagated. Only there was a separation between the two surfaces where the crack line is in between. How can i make the crack tip propagates through the line drawn?
thanks
How to calculate the impact force at the time of impact for charpy impact test method
deer all
i am having a difficulty in modeling a crack growth using the XFEM. what is the difference between specifying the crack path and when u don`t specify it?
when i specify the crack path the surface separation begins even if i applied small loads value. But when i don`t specify the crack path it never separates.
Does anyone has an answer for me? thanks.
The well-known J integral is only valid for straight crack, am I right?
If no, can anyone please point me a reference for the J integral in case of curved crack?
thanks.
Hello All,
I'm new user in ABAQUS and I want to simulate and verify a critical crack-size in a pressurized pipe with axial and circumferential crack. Also, an important aspect, the crack is through-wall thickness. So, I'm faced with some doubts about its implementation in ABAQUS as following:
1 - Can I model the through-wall crack with shell ements based on line-spring (element LS3S)?
Hi All
Currently I am running FE modelling using linear elastic fracture mechanics approach to estimate crack growth propagation in a web plate of box girder in an existing bridge deck. The FE model includes 3D solid element. The crack growth direction is expected to follow in a plan perpendicular to the maximum principal stress.
As I know there are many methods can be used to estimate the direction of crack during propagation. My question is about the maximum tangential stress criterion method.
Dear all,
I would like to define an elastic material with a
failure value of maximum tensile strain only. Any element reaches a max.
tensile strain value will crack and suffer complete loss of load
carrying capacity(possibly delete that element). Thus its a change in
geometry that is only considered when redistributing stresses.
Could this be done in ABAQUS or any other Finite Element Software?...I have been working with ABAQUS for some time now but I could not reach any where
Thanks for the help
Hussam
Hi,
Assume that we have a composite structure consists of isotropic layers with a delamination (separation) between the layers. There is a compressive load
applying normal to layers surfaces and hence normal to the delamination (crack) which closes the delamination, and a shear load tangential to the crack surface.
the order of shear force is much smaller than the compressive load. can the delamination propagate du to this shear force?
