Problem description

When multiple geogrid materials are defined, in some cases in PLAXIS 2D 2015.00 and PLAXIS 2D 2015.01 this can lead to incorrect data, making the model not readable anymore by the Input or Output program. This is caused by an error in the thermal properties for the geogrid materials. When this happens, trying to open this model in Input or Output will result in a bug report:

When looking more into the details (Show bugreport), the first line in the call stacks will refer to an error in TNumericalBlock.CopyValuesToBuffer:

Solution

The cause for this has now been solved in PLAXIS 2D 2015.02

When this error occurs, the data cannot be loaded anymore in PLAXIS 2D 2015.00/.01. The only way to get the model again is to do the following:

1. open the file data.success.p2dlog from the *.P2DXDAT-data folder of the PLAXIS model
2. remove all commands referring to the creation or editing of geogrid materials. The command to create a geogrid material dataset starts with _geogridmat or geogridmat
3. Now open the PLAXIS 2D Input program
4. Start a new project
5. Open the commands runner
6. And add all commands from step 2 

Note this method only works when the model was originally created in PLAXIS 2D 2015. When the model was started in PLAXIS 2D AE, this trick does not work due to some imcompatible commands, see here for more details: PLAXIS 2D Command compatibility notes