Use the BEAD_CONTROLLER Algorithm
- To maximize the stiffness of the structure, minimize the compliance - or sum of strain energy.
-
Define the design response like the following:
DRESP ID_NAME = dresp_compliance TYPE = STRAIN_ENERGY DEF_TYPE = SYSTEM UPDATE = EVER EL_GROUP = ALL_ELEMENTS GROUP_OPER = SUM LC_SET = Static,1,All END_
Note:- Compliance is defined as the sum of the energy of all the elements in the FE-model regardless how large your design domain might be.
- The algorithm is based on element stress tensors. Therefore, these must be requested in the FE-analysis, but Tosca Structure for most solvers adds these result request.