Bond strength measurement in composites—Analysis of experimental techniques

Herrera‐Franco, Pedro J.; Rao, V.; Drzal, Lawrence T.; Chiang, Martin Y.

doi:10.1016/0961-9526(92)90016-y

Cited by 24 publications

(8 citation statements)

References 10 publications

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“…Several analytical models have been developed to characterize the stress distribution in the microbond test. [17][18][19][20][21][22][23] Nishikawa et al developed a micromechanical model for the microbond test to quantify the interface property of fiber-reinforced composites. 23 While this approach aims to account for the stress distribution along the fiber-matrix interface, it is limited by its 2D axisymmetric and elastic material behavior assumptions.…”

Section: Finite Element Modelmentioning

confidence: 99%

A study of the effect of experimental test parameters on data scatter in microbond testing

Pandey

Kareliya

Singh

2011

Journal of Composite Materials

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This paper evaluates the effect of two experimental parameters, namely microvise blade geometry and blade separation, on the scatter in measured interfacial strength in microbond experiments, with the help of two-dimensional (2D) and three-dimensional (3D) finite element models. The 3D model better captures the ‘exact’ loading nature of the problem as compared to the 2D model but it is computationally intensive. Stress distributions obtained by finite element analysis are compared with those from the shear-lag model often used to analyze microbond experiments. This comparison determines the effectiveness of using shear-lag analysis in microbond experiments and for explaining the reasons for commonly observed data scatter.

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Section: Finite Element Modelmentioning

confidence: 99%

A study of the effect of experimental test parameters on data scatter in microbond testing

Pandey

Kareliya

Singh

2011

Journal of Composite Materials

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“…The characterization of an interface is a challenging problem. To characterize the influence of interface on the load bearing capacity of composites, a number of experimental techniques, such as pull-out/ micro-droplet, compression test (Slice test), push-out (or indentation), microbond or fragmentation tests are commonly performed [13][14][15][16][17][18][19][20][21][22]. These tests have a variety of specimen geometries and scales involved.…”

Section: Introductionmentioning

confidence: 99%

A review of analytical models to describe pull-out behavior – Fiber/matrix adhesion

Teklal

Djebbar

Allaoui

et al. 2018

Composite Structures

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Micromechanical tests are reliable tools to study the failure mechanisms in composites reinforced with continuous fibers. This paper presents an overview of various analytical models developed to study the pullout (push-back) behavior of a fiber embedded in a matrix block to characterize the fiber/matrix interfacial adhesion. Two approaches can be distinguished: one based on a maximum stress criterion (shear lag) and the other based on fracture mechanics. This article gives an overview of the analytical models reported in the literature to measure the shear strength and critical fracture energy at the interface, the parameters influencing these properties, the geometry of the model, embedded length of the fiber, fiber diameter and loading conditions (opening width between the knife-edges for example), including components (fiber, matrix, interface), manufacturing route and the resulting defects.

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“…The interfacial shear strength can be affected by the type of fiber and matrix as well as the condition of the fiber surface treatment [1,2]. Some test methods, such as the pull-out test [3,4], microdroplet test [5][6][7], microdebond test [8,9] and fragmentation test [10,11] have been used to evaluate the interfacial shear strength.…”

Section: Introductionmentioning

confidence: 99%

The interfacial shear strength of Kevlar fiber/epoxy composite measured by the microdroplet test

Caichilan²

2010

Materialwissenschaft Werkst

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Epoxy chloropropane (ECP) grafting modification method was used for the surface treatment of Kevlar fiber to improve the interfacial adhesion of the Kevlar fiber reinforced epoxy composite. The surface characteristics of untreated and treated Kevlar fiber were characterized by Fourier transform infrared (FT-IR) spectroscope. The interfacial shear strength between epoxy and Kevlar fiber was analyzed by measuring from microdroplet specimens adhered onto a single carbon fiber. Microdroplet specimens exhibited different results of the interfacial strength due to the Kevlar fiber surface treatment. The results showed that a larger shear stress concentration arose along the interface for the surface treated model than for the untreated one.

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Bond strength measurement in composites—Analysis of experimental techniques

Cited by 24 publications

References 10 publications

A study of the effect of experimental test parameters on data scatter in microbond testing

A study of the effect of experimental test parameters on data scatter in microbond testing

A review of analytical models to describe pull-out behavior – Fiber/matrix adhesion

The interfacial shear strength of Kevlar fiber/epoxy composite measured by the microdroplet test

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