Sequential damage study induced in fiber reinforced composites by shear and tensile stress using a newly developed Arcan fixture

Israr Ud Din, Shanshan Tu, Pei Hao, Stéphane Panier, Kamran Ahmed Khan, Rehan Umer, S. Z.H. Shah, Gérald Franz, Muhammad Aamir

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

This work presents the application of both uniaxial and bi-axial in-plane loads to unidirectional carbon fiber reinforced polymer laminates using a newly developed Arcan fixture, which is a reliable experimental set-up to obtain a uniform shear stress field in a butterfly specimen. The set-up can be used for both damage model validation and parameters identification at various fiber orientations while using the same specimens. A sequential damage study was completed to highlight the influence of diffused damage induced in pure shear on the fiber direction tensile behavior of the laminate. This was accomplished by applying load on the specimens in two steps: (i) the pure shear step and then unloading at approximately 70% of the shear failure strength, (ii) in the tensile step until final failure. A clear drop in the tensile behavior of the laminate was observed by the diffused damage induced in the first loading step of pure shear. The experimental study is also supplemented with numerical simulations using a nonlinear elasto-plastic coupled damage constitutive law by employing Puck's failure theory for mesodamage activation. In addition to the damage pattern, the non-linear mechanical behavior in shear is predicted and found in good correspondence with the experimental results.

Original languageBritish English
Pages (from-to)13352-13364
Number of pages13
JournalJournal of Materials Research and Technology
Volume9
Issue number6
DOIs
StatePublished - 2020

Keywords

  • Fiber reinforced polymers
  • In-Plane loading
  • Modified Arcan fixture
  • Numerical analysis
  • Sequential damage

Fingerprint

Dive into the research topics of 'Sequential damage study induced in fiber reinforced composites by shear and tensile stress using a newly developed Arcan fixture'. Together they form a unique fingerprint.

Cite this