Advances on beam-to-beam computational contact models

• Grant number: 14/17701-4
• Support Opportunities: Scholarships abroad - Research
• Start date: December 08, 2014
• End date: February 14, 2015
• Field of knowledge: Engineering - Mechanical Engineering - Mechanics of Solids
• Principal Investigator: Alfredo Gay Neto
• Grantee: Alfredo Gay Neto
• Host Investigator: Peter Wriggers
• Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Institution abroad: Leibniz Universität Hannover, Germany

Abstract

In computational mechanics, contact models are being more frequently utilized for engineering practical applications. New models are being developed through usage of new numerical solution techniques, new geometric descriptions and new searching algorithm, decreasing the computational time for solution and, additionally, increasing the quality of results of contact interaction simulations. Particularly, when addressing beam finite element models, the natural contact description is the usage of spatial curves. These represent the structure-deformed shape. In large displacements/rotations scenario, it is necessary to map correctly the points of contact and their changes. Current beam-to-beam contact models permit analyzing circular and square cross sections, in some restrict conditions. In this context the research field in which this proposition is inserted is to develop new beam-to-beam contact models, more generic and with a more realistic kinematic description. Particularly, the present project aims to develop a new contact formulation, in which the beams cross sections are more generic than only circular or square, but more generic convex shapes. It is possible, then, to represent elliptical cross sections and others. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

NETO, ALFREDO GAY; PIMENTA, PAULO M.; WRIGGERS, PETER. A master-surface to master-surface formulation for beam to beam contact. Part I: frictionless interaction. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, v. 303, p. 400-429, MAY 1 2016. (14/17701-4)