Special Issue "Carbon Fiber Reinforced Polymers (CFRPs): Mechanical behaviors and Applications"

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Composites".

Deadline for manuscript submissions: 30 June 2020.

Special Issue Editor

Assoc. Prof. Caterina Casavola
E-Mail Website
Guest Editor
Department of Mechanics, Mathematics and Management, Politecnico di Bari, Bari, Italy
Interests: composite materials; carbon fiber; reinforced polymers; mechanical characterization; numerical model

Special Issue Information

Dear Colleagues,

The use of carbon fiber-reinforced plastics (CFRPs) in specific engineering fields, such as in automotive and aerospace applications, is heavily increasing, because vehicle lightweighting is becoming increasingly important. Composites show mechanical behaviors totally different from those of conventional bulk materials. Their use is associated with providing high performance in terms of increased flexural and tensile resistances for specific structural applications. However, currently, knowledge of their mechanical responses is not complete, and for this reason, they need to be investigated using experiments and models. Experimental campaigns remain the most useful way to characterize them, as, in recent years, many researchers have presented very promising results by using innovative methodologies. Numerical and analytical models of CFRPs represent the key to saving money and time in order to provide validated simulations able to replace, in part, experimental tests.

The Special Issue will focus on any kind of mechanical characterization using both traditional and innovative techniques on CRFPs. Such composites could be made by different kinds of manufacturing processes and investigated by applying several numerical and analytical models. Special attention will be given to innovative approaches able to predict, in a reliable way, the mechanical responses of CFRPs during work conditions.

Assoc. Prof. Caterina Casavola
Guest Editor

Manuscript Submission Information

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Keywords

  • carbon fiber-reinforced plastics (CFRP)
  • composites
  • mechanical properties
  • manufacturing processes
  • numerical and analytical models
  • engineering applications

Published Papers (2 papers)

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Research

Open AccessArticle
A Continuum Damage Model for Intralaminar Progressive Failure Analysis of CFRP Laminates Based on the Modified Puck’s Theory
Materials 2019, 12(20), 3292; https://doi.org/10.3390/ma12203292 - 10 Oct 2019
Abstract
A continuum damage model is proposed to predict the intralaminar progressive failure of CFRP laminates based on the modified Puck’s theory. Puck’s failure criteria, with consideration of the in situ strength effect, are employed to evaluate the onset of intralaminar failure including fiber [...] Read more.
A continuum damage model is proposed to predict the intralaminar progressive failure of CFRP laminates based on the modified Puck’s theory. Puck’s failure criteria, with consideration of the in situ strength effect, are employed to evaluate the onset of intralaminar failure including fiber fracture and inter-fiber fracture. After damage initiation, a bilinear constitutive relation is used to describe the damage evolution process. In strict accordance with Puck’s concept of action plane, the extent of damage is quantified by the damage variables defined in the fracture plane coordinate system, rather than the traditional material principal coordinate system. Theoretical and experimental evaluation of CFRP laminates under different loading conditions demonstrates the rationality and effectiveness of the proposed numerical model. The model has been successfully implemented in a finite element (FE) software to simulate the intralaminar progressive failure process of CFRP laminates. A good agreement between the experimental and numerical results demonstrates that the present model is capable of predicting the intralaminar failure of CFRP laminates. Full article
Open AccessArticle
The Effects of Laser Parameters and the Ablation Mechanism in Laser Ablation of C/SiC Composite
Materials 2019, 12(19), 3076; https://doi.org/10.3390/ma12193076 - 20 Sep 2019
Abstract
The effects of laser parameters and the ablation mechanism in laser ablation of a carbon fiber reinforced silicon carbide (C/SiC) composite are investigated in the present study. Six different power densities are provided, as well as six levels of pulse numbers, and then [...] Read more.
The effects of laser parameters and the ablation mechanism in laser ablation of a carbon fiber reinforced silicon carbide (C/SiC) composite are investigated in the present study. Six different power densities are provided, as well as six levels of pulse numbers, and then ablation experiments are conducted for the C/SiC composite, induced by a pulsed laser. Based on the experimental results, the characteristics of surface morphology and ablation behavior are discussed. It is revealed that the surface morphology of the C/SiC composite under laser irradiation usually includes three regions: the center region, the transition region, and the border region. With the increase of laser power density, the ablation of the center region becomes severe, surface cracks occur, and more spherical SiC particles are found in the transition region. As for scenarios involving multiple pulses, the damage occurs in the center region at low power density limits, within the first two layers below the surface. However, if the power density is relatively high, an ablation pit occurs in the center region when the pulse number is larger than 50. Meanwhile, the transition region and the border region diminish with increase of the pulse number. It is noted that both the power density and pulse number have noticeable effects on surface morphology and ablation behavior during laser ablation, which is helpful for material design and performance evaluation of C/SiC composites. Full article
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