Why is the form finding stage for tension fabric membrane structure considered as an independent material process?

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Shape optimization: how to assign a value for an objective function in case of infeasible solution?

Dear all, At the moment, I am doing shape optimization for membrane structures. I am using GA/MATLAB and ABAQUS to minimize the deviation between the stress on a "real" structure and the assigned...

02 March 2015 4,062 5 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MD MOE RMSD

How to calculate the RMSD values for a MD simulation using MOE?

07 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

fatal error

When I tried to energy minimization my system, I got fatal error as below. Fatal error: Atomtype opls_116 not found Although I've already added this line: ; include water #include "oplsaa.ff/spc.itp" to [molecultype] directive in my topology.

16 June 2021 0 0 View

fatal error

16 June 2021 0 0 View

fatal error

16 June 2021 0 0 View

fatal error

16 June 2021 0 0 View

what is the simplest definition of ion exchange capacity

What this unit identifies for the ion exchange capacity ca. 0.92 meq. g-1. I am a newcomer in the membrane area. I just started. I highly appreciate your help

08 May 2021 0 0 View

Roberto Nascimbene

Usually the form-finding problem is quite similar to an optimization procedure based on equilibrium equations. It is a membrane state that requires just static equilibrium and volume/stress/strain constraints in order to find the best "shape". Compatiblity and constitutive relations usually are not required.