C. Blanze et al., A MODULAR APPROACH TO STRUCTURE ASSEMBLY COMPUTATIONS - APPLICATION TO CONTACT PROBLEMS, Engineering computations, 13(1), 1996, pp. 15
Presents a modular method for obtaining either a quick or a precise ca
lculation for three-dimensional structure assemblies with local non-li
nearities, such as unilateral contact with friction, or technological
components, such as prestressed bolt joints. An iterative method, incl
uding a domain-decomposition technique, is proposed to solve such quas
i-static problems in small perturbations. Two types of entities are in
troduced: sub-structures and interfaces. A local and a global stage ar
e successively carried out by an iterative algorithm until convergence
. The linear problem in the global stage is solved by a FEM (3D case)
or by another approach using Trefftz functions (2D axisymmetrical case
). Applications developed with AEROSPATIALE-Les Mureaux are presented
and concern the study of structure joints with different types of flan
ges.