Contact Non Linearities
Analyzing contact mechanics and non-linear contact behaviors in engineering simulations
This module covers key topics in non-linear contact mechanics, focusing on real-world engineering challenges involving complex contact interactions. The assignments utilize MATLAB and ANSYS to simulate and analyze contact mechanics, including large deformation contact, frictional contact, and beam-to-beam contact.
Key assignments and simulations
Introduction & 1D Elastostatics Contact Problems
This assignment introduces the basics of contact mechanics by analyzing 1D elastostatics problems. MATLAB was used to compute the contact mechanics in truss systems, exploring stiffness matrices and applying both penalty and Lagrange methods for contact resolution.(Homework 1, Chapters 1 & 2)
Three- and Two-Dimensional Contact Mechanics
Focused on large deformation contact problems in 2D and 3D simulations. Using ANSYS, contact parameters such as mesh refinement, frictional contact properties, and cyclic symmetry were investigated. The assignment demonstrated the effects of load distribution and contact pressure on the deformation of structures.(Homework 2, Chapters 3 & 4)
Beam-to-Beam Contact and Gasket Modeling
Simulated beam-to-beam contact using structural steel and PVC materials. This assignment included detailed analysis of contact formulations and modeling approaches for gasket joints, bolt pretension, and cohesive zone modeling. The results provided insights into stress distribution and pretension in joint assemblies.(Homework 3, Chapters 5, 6 & 7)
This module explored non-linear contact behaviors in structural systems, with a focus on advanced contact mechanics such as frictional contact and beam-to-beam interactions. Through practical assignments, students gained a comprehensive understanding of how contact non-linearities influence the stability and performance of engineering structures.