| Full text | |
| Author(s): |
Total Authors: 2
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| Affiliation: | [1] Univ Sao Paulo, Polytech Sch, Sao Paulo - Brazil
[2] Leibniz Univ Hannover, Hannover - Germany
Total Affiliations: 2
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| Document type: | Journal article |
| Source: | COMPUTATIONAL MECHANICS; v. 64, n. 3, p. 585-609, SEP 2019. |
| Web of Science Citations: | 2 |
| Abstract | |
In the context of pointwise contact interaction between bodies, a formulation based on surface-to-surface description (master-master) is employed. This leads to a four-variable local contact problem, which solution is associated with general material points on contact surfaces, where contact mechanical action-reaction are represented. We propose here a methodology that permits, according to necessity, a selective dimension reduction of this local contact problem. Thus, the formulation includes curve-to-curve, point-to-surface, curve-to-surface or other contact descriptions as particular degenerations of the surface-to-surface approach. This is done by assuming convective coordinates in the original local contact problem. An operator for performing the so-called ``local contact problem degeneration{''} is presented. It modifies automatically the dimension of the local contact problem and related requirements for its solution. The proposed method is particularly useful for handling singularity scenarios. It also creates a possibility for representing conformal contact by pointwise actions on a non-uniqueness scenario. We present applications and examples that demonstrate benefits for beam-to-beam contact. Ideas and developments, however, are general and may be applied to other geometries of contacting bodies. (AU) | |
| FAPESP's process: | 16/14230-6 - GENERALIZATION OF THE "MASTER-MASTER" FORMULATION FOR COMPUTATIONAL CONTACT MECHANICS |
| Grantee: | Alfredo Gay Neto |
| Support Opportunities: | Scholarships abroad - Research |