Maxwell Damping: An Alternative to Rayleigh Damping in Seismic Analysis

Maxwell Damping: An Alternative to Rayleigh Damping in Seismic Analysis

Maxwell damping was introduced as a new feature in ITASCA Software Version 9 for FLAC3D, FLAC2D, and 3DEC. It is a more frequency-independent form of damping for time-domain analyses. It eliminates the three major issues associated with Rayleigh damping:

  • Offers frequency independence over a much wider range,
  • Does not significantly reduce the numerical time step, and
  • Avoids the generation of unphysical body forces.

FLAC3D models using Maxwell damping, for example, can be 10-200 times faster, and as accurate, than those models using Rayleigh damping. With Maxwell damping, large, 3D site responses and soil-structure interaction become practical to analyze.

This webinar was presented by Ethan Dawson (US Army Corps of Engineers) and Zhāo Chéng (ITASCA) on September 24, 2024.

🔍 Highlights:

  • Maxwell damping formulation, verification, and validation
  • Calibration tool (spreadsheet)
  • Applications, including site responses and soil-structure interactions
  • Merits and drawbacks will also be discussed

WATCH NOW:

Webinar Details

24 Sep 2024
10 am - 11 am CDT

Language: English

Software: Consulting Services:

Latest News
  • Newsletter October 2023 ...
    Read More
  • Newsletter August 2023 ...
    Read More
  • New General Manager for ITASCA Sweden We have appointed a new GM in Sweden!...
    Read More

Upcoming Events
23 Sep
Getting Started with FLAC2D/FLAC3D
This training is an introduction to continuous modeling with FLAC2D and FLAC3D. At the end of the course, participants will master the ... Read More
14 Oct
Getting Started with 3DEC
Live Online Introductory Training Course. October 14-15, 2025... Read More