Shear Brickwall

[Jamildouier]

I have created a model, but it wouldn't calculate until I changed a few parameters, including the duration of the vertical and horizontal loads. Afterward, it could calculate, but then an error occurred related to convergence, and I couldn't proceed any further and didn't know what to do. Herewith, I am uploading the error message and the model. I kindly ask for your help.

[kesavapraba]

Hi, my observations are:

1] Is it a real wall or a hypothetical one? because, the aspect ratio (h/L is around 30!) of the wall is too high! It will buckle out under precompression!

2] Edge force seems to be too high. Please check, it should be in N/mm or kN/m

[Jamildouier]

Hi,
it is a hypothetical one. I am modelling it for a research.
The Edge force is also in N/mm.
Best regards

[kesavapraba]

Okay, but the aspect ratio mentioned is not standard; I recommend confirming with your professor. Additionally, the precompression (748 kN/m) seems too high, around 3 MPa, which is uncommon for masonry compressive strength of around 5 MPa.

In your model, the fcp/E value for the brick constitutive relation (DamageTC3D) is greater than ecp, which is not valid for the compression model to function properly. Therefore, ensure that the fcp/E value is less than ecp.

[Jamildouier]

thank you. I am going to try and see if it works. I will write a review if it doesn´t work.

[kesavapraba]

Ok, sure. Please also note that the local Z-axis of all elements should be pointing along +Z global axis in 2D analysis. This is not followed in your model, mortar geometry faces are flipped when compared to the brick faces. So, the Jacobian matrix is inverted, essentially this could cause convergence issue. Make all the faces having +z local axis pointing along the +Z global axis by using "reverse" command under geometry tab.

[Jamildouier]

Hi, I changed the fcp/E value and made it less than the ecp. It worked perfectlz until i went to the post processor to take the results. unfortunately this error message appeared. Do you know what can I do? I tried to solve the problem by finding out what to do with HDF5 but I couldn't know.

Command: OpenPostDocument
Serialization exception: Cannot open group: "FILE_INFO".
File: "..\..\MpcCore\MpcCoreApp\Serialization\MpcPostDocumentSerializerPrivate.cpp
Function: load (Line: 31)
error #0 C:\autotest\hdf5112-StdRelease-dist-10vs14\build\hdfsrc\src\H5G.c in H5Gopen2(): line 510.
class: HDF5
major: Symbol table
minor: Can't open object
error #1 C:\autotest\hdf5112-StdRelease-dist-10vs14\build\hdfsrc\src\H5VLcallback.c in H5VL_group_open(): line 4187.
class: HDF5
major: Virtual Object Layer
minor: Can't open object
error #2 C:\autotest\hdf5112-StdRelease-dist-10vs14\build\hdfsrc\src\H5VLcallback.c in H5VL__group_open(): line 4154.
class: HDF5
major: Virtual Object Layer
minor: Can't open object
error #3 C:\autotest\hdf5112-StdRelease-dist-10vs14\build\hdfsrc\src\H5VLnative_group.c in H5VL__native_group_open(): line 123.
class: HDF5
major: Symbol table
minor: Can't open object
error #4 C:\autotest\hdf5112-StdRelease-dist-10vs14\build\hdfsrc\src\H5Gint.c in H5G__open_name(): line 270.
class: HDF5
major: Symbol table
minor: Object not found
error #5 C:\autotest\hdf5112-StdRelease-dist-10vs14\build\hdfsrc\src\H5Gloc.c in H5G_loc_find(): line 442.
class: HDF5
major: Symbol table
minor: Object not found
error #6 C:\autotest\hdf5112-StdRelease-dist-10vs14\build\hdfsrc\src\H5Gtraverse.c in H5G_traverse(): line 837.
class: HDF5
major: Symbol table
minor: Object not found
error #7 C:\autotest\hdf5112-StdRelease-dist-10vs14\build\hdfsrc\src\H5Gtraverse.c in H5G__traverse_real(): line 613.
class: HDF5
major: Symbol table
minor: Callback failed
error #8 C:\autotest\hdf5112-StdRelease-dist-10vs14\build\hdfsrc\src\H5Gloc.c in H5G__loc_find_cb(): line 399.
class: HDF5
major: Symbol table
minor: Object not found

An error occurred while loading the specified file. A default file will be created.
End Command: OpenPostDocument

[kesavapraba]

Hi, did you install the new opensees version 3.7.0? It is available at the link below. Please download and install it as HDF5 is now statically integrated with OpenSees.


https://www.researchgate.net/publicatio ... r_OpenSees

[Jamildouier]

Hi, I installed the new opensees version 3.7.0 and tried it. The same error message appeared again. Could that be from the Laptop?

[STKO Team]

You are opening the MPCO Database with the OpenDocument command!
You should use the Open DB command

opendb.png (18.57 KiB) Viewed 804 times