Cross-axis coupling and phase angle effects due to multiaxial vibration

Ed Habtour*, Abhijit Dasgupta, Sabrina Vantadori

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


The response of structures under combined biaxial harmonic base excitation is investigated experimentally. The effect of cross-axis coupling, especially as a function of the relative phase angle between two vibration actuators is demonstrated. The experiments are performed using a unique multiaxial electrodynamic shaker with high degree of controllability. Increasing the phase angle between the rotational and translational excitation from 0° to 135° increases the dynamic response of the structure and its nonlinear stiffness. The results are compared to both uniaxial rotational and translational vibration. The chapter provides qualitative and quantitative differences between uniaxial and multiaxial nonlinear harmonic excitation with varying phase and fatigue build up.

Original languageEnglish
Title of host publicationFracture, Fatigue, Failure and Damage Evolution
Subtitle of host publicationProceedings of the 2017 Annual Conference on Experimental and Applied Mechanics
EditorsJay Carroll, Shuman Xia, Alison M. Beese, Ryan B. Berke, Garrett J. Pataky
Number of pages3
ISBN (Print)9783319628301
Publication statusPublished - 2018
Externally publishedYes
EventAnnual Conference and Exposition on Experimental and Applied Mechanics, 2017 - Hyatt Regency Indianapolis, Indianapolis, United States
Duration: 12 Jun 201714 Jun 2017

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)2191-5644


ConferenceAnnual Conference and Exposition on Experimental and Applied Mechanics, 2017
Abbreviated titleSEM 2017
Country/TerritoryUnited States


  • Fatigue
  • Multiaxial
  • Nonlinear dynamics
  • Precursor
  • Reliability


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