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All posts by Mateusz Stec

Modeling Fatigue Failure in Elastoplastic Materials

October 28, 2016

One example of fatigue failure? Bending a metal paper clip back and forth until it eventually breaks. Learn how to model this type of behavior in elastoplastic materials using COMSOL Multiphysics®.

How to Model Contact Fatigue in COMSOL Multiphysics®

August 4, 2016

Contact fatigue occurs when two parts in contact experience a time-dependent contact pressure. Learn how to model this structural phenomenon in COMSOL Multiphysics®.

Reaching New Heights in Pole Vaulting: A Multibody Analysis

February 4, 2016

We perform a multibody dynamics analysis of the different phases of pole vaulting using COMSOL Multiphysics®.

How to Obtain Fatigue Model Parameters

December 26, 2014

2 challenges when modeling fatigue: 1.) selecting a suitable fatigue model for your application and 2.) obtaining the material data for the selected model.

Which Fatigue Model Should I Choose?

November 25, 2014

Have you ever asked yourself, “Which fatigue model should I use in my simulations?” If so, read this blog post for a comprehensive overview of the available Fatigue Module models.

Modeling Thermal Fatigue in Nonlinear Materials

May 1, 2014

2 challenges when simulating fatigue in nonlinear materials: 1.) Correctly representing the material behavior and 2.) finding a fatigue model that captures the life-controlling mechanism.

Submodeling: How to Analyze Local Effects in Large Models

January 1, 2014

Modeling a particularly large structure with a lot of boundary conditions? Learn how to use submodeling, a technique for analyzing local effects in large models in COMSOL Multiphysics®.

Fatigue Prediction Using Critical Plane Methods

July 22, 2013

Research on fatigue started in the 19th century, initiated following failing railroad axles that caused train accidents. In a rotating axle, stress varies from tension to compression and back to tension in one revolution. The load history is simple because it is uniaxial and proportional. Fatigue can then be evaluated with the S-N curve, also known as the Wöhler curve, which relates stress amplitude to a component’s life. In many applications we deal with multiaxiality and non-proportional loading. In this […]

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