GENERALIZATION OF THE "MASTER-MASTER" FORMULATION FOR COMPUTATIONAL CONTACT MECHANICS

• Grant number: 16/14230-6
• Support Opportunities: Scholarships abroad - Research
• Start date: December 08, 2016
• End date: February 22, 2017
• 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, the usage of contact modeling is frequent for practical engineering applications. The models are being developed, leading to the possibility of simulation of more realistic scenarios. In the context of finite element modeling, among the classical contact formulations named "node-node" and "node-surface", new possibilities for establishing contact models emerge, with the aid of "master-master" formulations, in which no master-slave distinction is made for contacting-surfaces. Such subject was initially proposed for contact between beams, represented by spatial curves. During last years, advances were done to consider contact between beams in a more elaborated manner, assuming the interaction between two parameterized surfaces, representing the exterior contour of beams. The advantage is the possibility of establishing complex kinematics with one only contact pair. This project proposes the continuation of such development, with the objective of generalizing the "master-master" technique for problematic situations, such as conformal surfaces contact. This advancement represents a way to generalize the technique for a new broad of applications, such as contact involving shells and solids.

Scientific publications

(4)

(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; WRIGGERS, PETER. Computing pointwise contact between bodies: a class of formulations based on master-master approach. COMPUTATIONAL MECHANICS, v. 64, n. 3, p. 585-609, SEP 2019. (16/14230-6)

NETO, ALFREDO GAY; PIMENTA, PAULO DE MATTOS; WRIGGERS, PETER. Contact between spheres and general surfaces. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, v. 328, p. 686-716, JAN 1 2018. (16/14230-6)

NETO, ALFREDO GAY; PIMENTA, PAULO M.; WRIGGERS, PETER. A master-surface to master-surface formulation for beam to beam contact. Part II: Frictional interaction. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, v. 319, p. 146-174, JUN 1 2017. (16/14230-6)

REFACHINHO DE CAMPOS, PAULO R.; NETO, ALFREDO GAY. Rigid body formulation in a finite element context with contact interaction. COMPUTATIONAL MECHANICS, v. 62, n. 6, p. 1369-1398, DEC 2018. (16/14230-6)