#5623. Fail-safe optimization of tubular frame structures under stress and eigenfrequency requirements

August 2026publication date
Proposal available till 22-05-2025
4 total number of authors per manuscript0 $

The title of the journal is available only for the authors who have already paid for
Journal’s subject area:
Modeling and Simulation;
Civil and Structural Engineering;
Mechanical Engineering;
Computer Science Applications;
Materials Science (all);
Places in the authors’ list:
place 1place 2place 3place 4
FreeFreeFreeFree
2350 $1200 $1050 $900 $
Contract №5623.1 Contract №5623.2 Contract №5623.3 Contract №5623.4
1 place - free (for sale)
2 place - free (for sale)
3 place - free (for sale)
4 place - free (for sale)

Abstract:
In conventional fail-safe optimization of frame structures the damage is usually modelled as complete removal of one or more members. We propose and incorporate two additional types of damage models into the fail-safe design problem. The first describes thickness degradation caused e.g. by corrosion. The second describes severe local damage by removal of a part of a member that causes a gap and free ends in the member. The latter damage model can cause undesirable local vibration modes. By combining the two damage models, local thickness degradation in a part of a member can be modelled. The considered design problem minimizes structural mass and includes local stress constraints and limits on eigenfrequencies. Besides the new damage models, a working-set algorithm is applied on the fail-safe optimization problem to reduce the computational cost.
Keywords:
Eigenfrequency constraints; Fail-safe structural optimization; Local stress constraints; Tubular frame structure; Working-set algorithm

Contacts :
0