The finite-element method: software
optimizes precast components

Photo: Dicad

Optimized shapes and minimized material consumption and weight pay off, particularly when it comes to series production

Photo: Dicad

Photo: Dlubal

FEM software supports engineers in their search for the best solution in formal, structural and economic terms

Photo: Dlubal

Photo: Walder + Trüeb

Even unconventional design ideas can be structurally verified and optimized using FEM software

Photo: Walder + Trüeb

Photo: RIB

The program should provide key structural elements that can be combined for defining the load-bearing structure

Photo: RIB

Photo: Sofistik

Since greater mesh densities and object sizes also require greater computing power, the challenge is to develop a smart mesh solution

Photo: Sofistik

Photo: Dlubal

Deformations impressively illustrate the points subjected to the highest loads

Photo: Dlubal

Additional modules ensure conformity with material- and standard-specific conditions when determining the structural design and layout of the reinforcement, …

Photo: Dlubal

… which can be visualized in 3D drawings prior to production

Photo: Dlubal

Photo: scia-online

Via interfaces, the FEM computation and structural component design is integrated into the BIM process

Photo: scia-online

Photo: RIB

In some cases, reinforcement objects may also be automatically transferred to automatic production units such as bending or welding robots

Photo: RIB

Photo: Walder + Trüeb

Critical points within a structure can be viewed in detail and optimized if and when required

Photo: Walder + Trüeb

When wanting to optimize precast components in structural, formal and economic terms, engineers and designers will inevitably have to use tailored verification and FEM programs. This article provides insights into existing options, benefits and limitations of computer-based design.

In many engineering fields, the finite-element method (FEM) has long been the established standard, including the aerospace, shipbuilding, automotive, and mechanical and plant engineering industries. Optimized shapes and minimized material consumption and weight pay off, particularly when it comes to series production. For this reason, the FEM-based static and dynamic verification of various types of individual and composite structural frameworks, including bar-shaped, slab, shear and shell-like designs, is of particular interest to the precast industry. Today, this method is well-suited to...