Effects of defects on interlaminar tensile fatigue behavior of carbon/epoxy composites

Seon, Guillaume; Makeev, Andrew; Nikishkov, Yuri; Lee, Edward

doi:10.1016/j.compscitech.2013.10.006

Cited by 63 publications

(31 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The authors of this work have recently developed a method that uses nondestructive inspection and finite element (FE) modeling capturing the effects of defects at the material scale (Refs. [19][20][21]. The objective of this work is to expand the method to predicting failure at the structural scale.…”

Section: Introductionmentioning

confidence: 98%

Structures Perspective for Strength and Fatigue Prognosis in Composites with Manufacturing Irregularities

Seon

Nikishkov

Makeev³

2015

j am helicopter soc

Self Cite

View full text Add to dashboard Cite

Recent advances in understanding deformation and failure mechanisms of polymer-matrix composites used in rotor structures enable accurate and efficient measurement of material stiffness, strength, and fatigue characteristics based on testing small unidirectional laminate specimens. Successful failure predictions provided increased confidence in the development of virtual test methods replacing some of the standard tests of multidirectional laminated composite materials with three-dimensional models accurately predicting deformation, damage topography, strength, and cycles to failure. However, the remaining key questions are related to the ability of transitioning the material-scale virtual test information to larger composite structures. This work presents results of the feasibility assessment targeting the scaling of knowledge and methods acquired at the material scale, to larger structural elements. In particular, manufacturing irregularities such as voids and fiber waviness are typical attributes of composite rotor structures. Therefore, a comprehensive structural analysis should be able to model such irregularities to predict structural strength and fatigue behavior.

show abstract

Section: Introductionmentioning

confidence: 98%

Structures Perspective for Strength and Fatigue Prognosis in Composites with Manufacturing Irregularities

Seon

Nikishkov

Makeev³

2015

j am helicopter soc

Self Cite

View full text Add to dashboard Cite

show abstract

“…ASTM D 6415 uses curved-beam specimens loaded in four-point bending and this test method is designed to produce through-thickness tensile strength data. Curved-beam specimens present unique manufacturing problems that do not occur in flat panels, and porosity can be easily introduced in such specimens [14]. Consequently, the test results from curved-beam specimens may reflect manufacturing quality since the through-thickness tensile strength is extremely sensitive to manufacturing defects.…”

Section: Introductionmentioning

confidence: 98%

Cryogenic through-thickness tensile characterization of plain woven glass/epoxy composite laminates using cross specimens: Experimental test and finite element analysis

Takeda¹,

Narita²,

Shindo³

et al. 2015

Composites Part B: Engineering

View full text Add to dashboard Cite

“…During the processes of manufacturing and exploitation of composite materials, their microstructure on the ply scale may be subject to various structural changes, contributing to development of the failure processes. These include matrix cracking, fiber breakage or bending, potentially accompanied by delamination between matrix and fibers, as well as between the plies [1][2][3][4]. Delamination is one of the most commonly occurring types of defects in composites, it is defined as separation of plies with forming of voids and growing of cracks, oriented by normal to the ply [5].…”

Section: Introductionmentioning

confidence: 99%

Modelling of fracture processes in laminate composite plates with embedded delamination

Tashkinov¹

2016

Frattura Ed Integrità Strutturale

View full text Add to dashboard Cite

This work is devoted to research and development of models for the processes of nucleation and growth of delamination in laminated composite materials. Possibilities of fracture mechanics approaches using virtual crack closure technique as well as progressive failure analysis based on the failure criteria are demonstrated. Influence of the initial delamination size on the rate of growth of the defect is studied. A comparative analysis of the applicability of fracture criteria to modeling of samples with delamination were performed, including implementation of element deletion algorithm. The numerical results obtained with the studied methods were compared. Citation: Tashkinov, M. A., Modelling of fracture processes in laminate composite plates with embedded delamination Frattura ed Integrità Strutturale, 39 (2017) 248-262.

show abstract

Effects of defects on interlaminar tensile fatigue behavior of carbon/epoxy composites

Cited by 63 publications

References 12 publications

Structures Perspective for Strength and Fatigue Prognosis in Composites with Manufacturing Irregularities

Structures Perspective for Strength and Fatigue Prognosis in Composites with Manufacturing Irregularities

Cryogenic through-thickness tensile characterization of plain woven glass/epoxy composite laminates using cross specimens: Experimental test and finite element analysis

Modelling of fracture processes in laminate composite plates with embedded delamination

Contact Info

Product

Resources

About