Failure criteria of composite materials under static and dynamic loading

I. M. Daniel*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution


To facilitate and accelerate the process of introducing, evaluating and adopting new material systems, it is important to develop/establish comprehensive and effective procedures of characterization, modeling and failure prediction of structural laminates based on the properties of the constituent materials, e.g., fibers, matrix, and the single ply or lamina. A new failure theory, the Northwestern (NU-Daniel) theory, has been proposed for predicting lamina yielding and failure under multi-axial states of stress including strain rate effects. It is primarily applicable to matrix-dominated interfiber/ interlaminar failures. It is based on micromechanical failure mechanisms but is expressed in terms of easily measured macroscopic lamina stiffness and strength properties. It is presented in the form of a master failure envelope incorporating strain rate effects. The theory was further adapted and extended to the prediction of in situ first ply yielding and failure (FPY and FPF) and progressive failure of multi-directional laminates under static and dynamic loadings. The significance of this theory is that it allows for rapid screening of new composite materials without very extensive testing and offers easily implemented design tools.

Original languageEnglish (US)
Title of host publicationMechanics of Composite and Multifunctional Materials - Proceedings of the 2015 Annual Conference on Experimental and Applied Mechanics
EditorsPiyush R. Thakre, Carter Ralph, Meredith Silberstein, Raman Singh
PublisherSpringer New York LLC
Number of pages11
ISBN (Print)9783319217611
StatePublished - 2016
EventSEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2015 - Costa Mesa, United States
Duration: Jun 8 2015Jun 11 2015

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652


OtherSEM Annual Conference and Exposition on Experimental and Applied Mechanics, 2015
Country/TerritoryUnited States
CityCosta Mesa


  • Dynamic testing
  • Failure criteria
  • Failure envelopes
  • Mechanical characterization
  • Strain rate effects

ASJC Scopus subject areas

  • General Engineering
  • Computational Mechanics
  • Mechanical Engineering


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