Course

Nonlinear Finite Element Analysis

Massachusetts Institute of Technology

This course on Nonlinear Finite Element Analysis offers a comprehensive exploration of finite element methods, led by renowned expert Klaus-Jürgen Bathe. The course is structured into 22 detailed video modules that cover key topics such as:

  • Introduction to Nonlinear Analysis
  • Basic Considerations in Nonlinear Analysis
  • Lagrangian Continuum Mechanics Variables
  • Total and Updated Lagrangian Formulations
  • Formulation of Finite Element Matrices
  • Dynamic Response Solutions
  • Modeling Elasto-Plastic and Creep Responses
  • Demonstrations using Adina software

Though the lectures stay primarily theoretical, they provide essential insights into this cutting-edge mathematical field, applicable in various industries from engineering to economics.

Course Lectures
  • This introductory module sets the stage for understanding nonlinear analysis in finite element methodology. It covers essential concepts and principles that govern the behavior of materials under various conditions. Students will be introduced to the fundamental differences between linear and nonlinear analysis, providing a solid foundation for the subsequent modules.

  • This module delves into the basic considerations necessary for conducting nonlinear analysis. It emphasizes the importance of understanding material properties, boundary conditions, and loading scenarios. Students will learn how these factors influence the results of finite element simulations, ensuring they grasp the complexities involved in nonlinear modeling.

  • This module introduces Lagrangian continuum mechanics variables crucial for nonlinear analysis. It discusses the significance of these variables in formulating the behavior of materials during deformation. Students will learn how to apply these concepts in practical scenarios, enhancing their analytical skills in finite element analysis.

  • This module focuses on the Total Lagrangian formulation, emphasizing incremental analysis techniques. Students will explore how this approach helps in tracking the motion and deformation of materials from their original configuration. Practical examples will illustrate the application of total Lagrangian methods in various engineering scenarios.

  • This module covers the Updated Lagrangian formulation, focusing on incremental analysis as well. It highlights the differences compared to the Total Lagrangian approach and discusses when to use each method. Students will gain insights into the practical implications of both formulations in real-world applications.

  • This module provides a comprehensive overview of the formulation of finite element matrices. Students will learn the significance of these matrices in the context of nonlinear analysis and how they are derived. Understanding matrix formulation is crucial for implementing finite element methods effectively.

  • This module examines 2D and 3D solid elements and discusses plane stress and strain conditions. It highlights the importance of understanding these conditions for accurate modeling in finite element analysis. Students will engage with practical examples to solidify their comprehension of solid elements.

  • This module covers the 2-Node Truss Element using the Updated Lagrangian formulation. It discusses the characteristics and applications of this element type in engineering analysis. Students will gain insights into how to model truss structures effectively using finite element methods.

  • This module discusses the 2-Node Truss Element with a focus on the Total Lagrangian formulation. Students will understand the differences between the two formulations and how they impact the analysis of truss elements in finite element modeling.

  • This module explores the solution of nonlinear static finite element equations. It provides students with methods and strategies for solving these complex equations, using practical examples to illustrate the concepts. Understanding these solutions is essential for effective nonlinear analysis.

  • This module continues the exploration of nonlinear static finite element equations, building on the concepts introduced in the previous module. Students will engage with more complex scenarios and refine their problem-solving skills, ensuring a thorough understanding of nonlinear static analysis.

  • This module provides demonstrative examples of solutions in static analysis. It showcases real-world applications of the theories learned in previous modules, allowing students to visualize the implementation of finite element analysis in various engineering contexts.

  • This module addresses the solution of nonlinear dynamic response equations. Students will learn the significance of dynamic analysis in understanding how structures respond to time-dependent loads and forces. Practical examples will illustrate the concepts and their applications in real-world scenarios.

  • This module continues the exploration of nonlinear dynamic response, providing further insights and methodologies for analyzing dynamic systems. Students will engage with complex scenarios that require a deeper understanding of dynamic analysis principles.

  • This module covers elastic constitutive relations in the Total Lagrangian formulation. Students will learn how these relations govern material behavior under various loading conditions, focusing on practical applications in engineering analysis.

  • This module discusses elastic constitutive relations in the Updated Lagrangian formulation. Students will understand how these relations are applied to model material responses in nonlinear finite element analysis and their significance in achieving accurate results.

  • This module focuses on modeling elasto-plastic and creep responses. It discusses the complexities of these behaviors and how they can be represented in finite element models. Students will explore practical examples that illustrate the application of these concepts in engineering.

  • This module continues the exploration of modeling elasto-plastic and creep responses, focusing on advanced techniques and methodologies. Students will deepen their understanding of how these complex behaviors can be accurately represented in finite element simulations.

  • Beam, Plate, and Shell Elements I
    Klaus-Jürgen Bathe

    This module introduces beam, plate, and shell elements, discussing their unique characteristics and applications in finite element analysis. Students will learn how to effectively model these elements for accurate structural analysis.

  • This module continues the discussion on beam, plate, and shell elements, providing further insights into their modeling techniques and practical applications. Students will engage with examples that highlight the importance of these elements in structural analysis.

  • This module provides a demonstration using Adina software for linear analysis. Students will gain hands-on experience in applying the concepts learned throughout the course, using Adina to conduct simulations and analyze results.

  • This module features a demonstration using Adina software for nonlinear analysis. Building on previous knowledge, students will learn how to set up and execute nonlinear simulations, analyzing the results to understand material behavior under complex loading conditions.