for many reasons, it seems PrePoMax far better in this case. all can be done inside GUI.
File - Export - Deformed mesh (inp) to save the mode imperfection of user desired and scale
Model - Tool - Update coordinate from file
it can be take from eigen-buckling, frequency, spectrum, user not only one as Abaqus/CAE
it can be viewing visually, not only in the background of process as Abaqus/CAE
latest versions of CalculiX GraphiX (CGX) has similar capabilities in this feature also.
> view The parameter ‘disp’ together with ‘keep’ adds the displacements permanently to the node coordinates. A second displacement dataset could be added by repeating the ‘view disp’ command.(Guido Dhondt and Klaus Wittig, 2022)
Right, it could be done this way in PrePoMax. However, only one buckling mode could be used (Abaqus allows for superposition of scaled mode shapes). And the lack of Riks solver in CalculiX can be a significant issue when performing postbuckling analyses.
superposition of buckling shape can be good in fast definition, but may inappropriate at most case. the shape depending on eigen-buckling produced in such a way not all imperfection is captured. very dependent on geometric, load and support. imperfection is not too depends, classified as: local, distortional, bow, camber and twist.
it’s on the list for long time, but did not yet available. is this unfinished or still in benchmark are not known.
i can not trace Yahoo Group anymore since it’s disappear. if i remember correctly, the feature of Riks algorithm has been discussed before versions 2.15 (2018) with Base motion features at the same periods (proposed and requested by user) .
right, i hope so it will be. a long waited feature for many user and community.