RESM

Submission & tracking

For submitting new manuscripts or tracking the existing ones, login or register to the Submission Tracking System.


LOGIN / REGISTER

PARTNERS




Research Article

Evaluation of damage anisotropy induced in GFRP composite materials by an innovative ultrasonic experimental approach  

Anna Castellano1, Pilade Foti2, Aguinaldo Fraddosio*2, Salvatore Marzano2, Mario Daniele Piccioni2

1DMMM - Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Bari, Italia
2DICAR - Dipartimento di Scienze dell’Ingegneria Civile e dell’Architettura, Politecnico di Bari, Bari, Italia

Keywords

Abstract

Ultrasonic immersion test, 

Wave propagation,

Damage mechanics, 

Composite materials, 

Anisotropic damage

We present a theoretical and experimental approach for the characterization of the damage induced anisotropy superimposed to the constitutive anisotropy of fiber-reinforced composite materials. The theoretical model here employed has been developed in the framework of the Continuum Damage Mechanics theory and allows for determining a tensorial damage measure based on the change of the elastic moduli of the composite material. Moreover, the model is general since it is applicable independently of the fibers reinforcement nature, of the presence of cracks, interlaminar voids and delamination, of the geometry of this cracks, and from of failure mechanisms of the composite materials. We perform damage experiments by using an innovative goniometric device designed and built at our laboratory (Laboratorio “M. Salvati”), and aimed at the mechanical characterization of materials. In particular, by rotating the sample into a water tank, we measure the ultrasonic “natural” velocities of the undamaged composite material along suitable propagation directions. This allows us for classifying the degree of symmetry of the material and for determining the elastic constants, also in highly anisotropic materials. Then we measure the ultrasonic velocities of the artificially damaged composite and we determine again the elastic moduli. The comparison between the elastic moduli of the damaged and the undamaged composite allows us for the characterization of the above cited anisotropic tensorial damage measure.

 © 2017 MIM Research Group. All rights reserved.

DOI: http://dx.doi.org/10.17515/resm2016.73st0726                          Full Text

LATEST News


07/10/2019 Collaboration for IMSMATEC 2019: Editorial Board of our journal and Organizing Committee of The International Conference on Materials Science, Mechanical and Automotive Engineerings and Technology (IMSMATEC 2019) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


25/12/2018 Collaboration for iSTE-CE'2019: Editorial Board of our journal and Organizing Committee of International Conference on Innovation, Sustainability, Technology and Education in Civil Engineering (iSTE-CE'2019) have agreed to collaborate. Extended versions of the selected papers from the conference will be published in our journal. For more see Events.


23/12/2018 2018 Most Cited Paper Award: The paper authored by Jouni Freud and Alp Karakoç entitled as “Shear and torsion correction factors of Timoshenko beam model for generic cross sections" is awarded the 2018 Most Cited Paper Award of Research on Engineering Structures and Materials (RESM). We congratulate the authors and wish them a continued success.


23/12/2018 2018 Best Paper Award: The paper authored by Nelson C. Batista, Rui Melicio and Victor M. F. Mendes entitled as “Darrieus vertical axis wind turbines: methodology to study the self start capabilities considering symmetric and asymmetric air foils” is awarded the 2018 Best Paper Award of Research on Engineering Structures and Materials (RESM). We congratulate the authors and wish them a continued success.


(More details of the news may be given in the News section)

For more see News...

abstractıng/ındexıng

  • CrossRef
  • Google Scholar
  • Universal Impact Factor
  • Scientific Indexing Service
  • Research Bible
  • CiteFactor
  • EZB Electronic Journal Library
  • Open Academic Journals Index
  • Global Impact Factor
  • Directory of Research Journal Indexing
  • Materials Science & Engineering Database (ProQuest)
  • Engineering Journals (ProQuest)
  • Ulakbim TR Index (Tubitak)
  • International Institute of Organized Research (I2OR)
  • International Scientific Indexing (ISI)


Special issue proposal

Open for Special Issue Proposals: The journal of RESM is open to proposals for special issues on emerging related topics. More info is here.

Open for new members

Our journal is open for team member applications in various positions, such as: editor, editorial board member, copyeditor, language editor. More info is here.

MIM RESEARCH GROUP

©2014. All rights reserved

Contact : jresm@jresm.net

editor.jresm@gmail.com


Postal Address:

Kemal Öz Mah. 3. Üniversite Sok. Erdoğan Apt. 70/21 Usak/Turkey



Last Update:

18.03.2019

(dd.mm.yyyy)