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Failure mechanisms of cross-ply carbon fiber reinforced polymer laminates under longitudinal compression with experimental and computational analyses

Journal Article · · Composites Part B: Engineering
 [1];  [2];  [3];  [4];  [5];  [3];  [6];  [7]
  1. Nanjing University of Aeronautics and Astronautics (China); Ford Motor Company, Dearborn, MI (United States); Nanjing University of Aeronautics and Astronautics
  2. The Ohio State Univ., Columbus, OH (United States); Ford Motor Company, Dearborn, MI (United States)
  3. Nanjing University of Aeronautics and Astronautics (China)
  4. Northwestern Univ., Evanston, IL (United States)
  5. Chongqing University (China)
  6. Univ. of Michigan, Dearborn, MI (United States)
  7. Ford Motor Company, Dearborn, MI (United States)

Here, this study investigates the failure mechanisms of cross-ply laminates subjected to longitudinal compressive loading. A sequence of failure initiation and propagation process is observed based on optical microscopy images of failed specimens. Specifically, the failure process in the cross-ply laminates involves a combination of four failure mechanisms: fiber kinking, delamination, matrix cracking, and fiber/matrix splitting. We find that the kink-bands in the middle 0° plies of the cross-ply laminates most often show a wedge shape and the angle of matrix cracks in the 90° plies is slightly larger than that of pure 90° plies. The reason has been attributed to the constraining effects by the adjacent plies. The next focus of this study is to propose hybrid micro-macro models to more systematically study the failure mechanisms of the cross-ply laminates. We show that these models accurately predict the combined failure modes of the cross-ply laminates and enable us to closely investigate the interactions of different failure mechanisms. More importantly, the hybrid models achieve great computational efficiency compared to full-scale microstructural models. Finally, the combined experimental and computational analyses presented here provide a new level of understanding of the kink-band morphology and damage mechanisms in the cross-ply laminates.

Research Organization:
Ford Motor Company, Dearborn, MI (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Grant/Contract Number:
EE0006867
OSTI ID:
1504747
Journal Information:
Composites Part B: Engineering, Journal Name: Composites Part B: Engineering Journal Issue: C Vol. 167; ISSN 1359-8368
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (42)

Finite element analysis of the end notched flexure specimen for measuring mode II fracture toughness journal January 1986
Measurement of the static compressive strength of carbon-fibre/epoxy laminates journal January 1991
Kink band formation and band broadening in fiber composites under compressive loading journal August 1995
Mixed-mode delamination fracture toughness of unidirectional glass/epoxy composites under fatigue loading journal January 1997
Thickness effect on the compressive strength of T800/924C carbon fibre–epoxy laminates journal February 2005
On modeling matrix failures in composites journal October 2005
A micromechanical study on the effect of intra-ply properties on transverse shear fracture in fibre reinforced composites journal September 2011
Hybrid nanoreinforced carbon/epoxy composites for enhanced damage tolerance and fatigue life journal October 2014
Experimental and numerical studies of initial cracking in CFRP cross-ply laminates journal January 2015
Mode I and Mode II interlaminar fracture toughness of composite laminates interleaved with electrospun nanofibre veils journal May 2015
Micro-mechanical analysis of the effect of ply thickness on the transverse compressive strength of polymer composites journal December 2015
Computational micromechanics evaluation of the effect of fibre shape on the transverse strength of unidirectional composites: An approach to virtual materials design journal December 2016
Compressive failure mechanism and strength of unidirectional thermoplastic composites based on modified kink band model journal February 2017
Experimental investigation on the compression and crush responses of cross-ply laminates with 0° plies of unidirectionally arrayed chopped strand journal August 2016
Experimental investigation on damage evolution in cross-ply laminates subjected to quasi-static and fatigue loading journal July 2017
Experimental studies of Mode I energy release rate in adhesively bonded width tapered composite DCB specimens journal January 2005
Fracture toughness of the tensile and compressive fibre failure modes in laminated composites journal October 2006
A micromechanical model for kink-band formation: Part I — Experimental study and numerical modelling journal June 2009
Effect of fiber, matrix and interface properties on the in-plane shear deformation of carbon-fiber reinforced composites journal June 2010
On the transition from shear-driven fibre compressive failure to fibre kinking in notched CFRP laminates under longitudinal compression journal August 2010
Micromechanical modelling of the transverse damage behaviour in fibre reinforced composites journal February 2011
A numerical study of the influence of microvoids in the transverse mechanical response of unidirectional composites journal June 2014
Transverse cracking of cross-ply laminates: A computational micromechanics perspective journal April 2015
Experimental characterization of the interlaminar fracture toughness of a woven and a unidirectional carbon/epoxy composite journal April 2017
Computational micromechanics of fiber kinking in unidirectional FRP under different environmental conditions journal May 2017
Study of localized damage in composite laminates using micro–macro approach journal July 2014
Micro-mechanical analysis of the in situ effect in polymer composite laminates journal September 2014
A micromechanical study of porous composites under longitudinal shear and transverse normal loading journal July 2015
High-fidelity micro-scale modeling of the thermo-visco-plastic behavior of carbon fiber polymer matrix composites journal December 2015
A numerical micro-mechanical study of the influence of fiber–matrix interphase failure on carbon/epoxy material properties journal January 2017
Revealing complex aspects of compressive failure of polymer composites – Part II: Failure interactions in multidirectional laminates and validation journal June 2017
Revealing complex aspects of compressive failure of polymer composites – Part I: Fiber kinking at microscale journal June 2017
Effect of fibre shape and interphase on the anisotropic viscoelastic response of fibre composites journal February 2017
Delamination onset in symmetric cross-ply laminates under static loads: Theory, numerics and experiments journal September 2017
Compressive strength determined for ultrahigh modulus fiber reinforced composites by [90/0]ns laminates journal May 2018
Multi-scale computational analysis of unidirectional carbon fiber reinforced polymer composites under various loading conditions journal July 2018
Development a refined numerical model for evaluating the matrix cracking and induced delamination formation in cross-ply composite laminates journal September 2018
Experimental and computational analysis of failure mechanisms in unidirectional carbon fiber reinforced polymer laminates under longitudinal compression loading journal November 2018
Micromechanical analysis of polymer composites reinforced by unidirectional fibres: Part I – Constitutive modelling journal June 2013
Structural composites for multifunctional applications: Current challenges and future trends journal August 2017
Predicting the Macroscopic Fracture Energy of Epoxy Resins from Atomistic Molecular Simulations journal December 2016
On the Analysis and Design of the End Notched Flexure (ENF) Specimen for Mode II Testing journal November 1986

Cited By (1)

Effect of thickness variation on static behaviour of carbon fiber reinforced polymer multidirectional laminated composite journal September 2019