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Matrix cracking of fiber-reinforced ceramic composites in shear

Publications associées (101)

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Stress distributions in bluntly-notched ceramic composite laminates

Varun Parameswaran Rajan

We present a methodology for determining stress distributions ahead of blunt notches in plates of fiber-reinforced ceramic–matrix composites subject to uniaxial tensile loading, accounting for the effects of inelastic straining due to matrix cracking. The ...

Elsevier2014

Analytical modeling of local stresses at Balsa/timber core joints of FRP sandwich structures

Thomas Keller, Anastasios Vassilopoulos, Julia De Castro San Roman Fest, Michael Osei-Antwi

In order to optimize sandwich structures, core materials of different density and thus different stiffness and strength are often combined. The material discontinuities at joints of dissimilar core materials may lead to abrupt changes of the shear angles a ...

Elsevier2014

An iterative analytical/experimental study of bridging in delamination of the double cantilever beam specimen

Anastasios Vassilopoulos, John Botsis, Behzad Dehghan Manshadi, Ebrahim Farmand Ashtiani

Large scale bridging in mode-I delamination of layered composites is an important toughening mechanism. While its extent depends on constituent materials, it is also influenced by specimen geometry. Here, an analytical approach is adopted to express the th ...

Elsevier2014

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The experimental study introduces an unload-induced direct-shear model to investigate the frictional slip of a layer of simulated granular gouges induced by the combination of a decreasing normal stress and a constant shear stress. A frictional equilibrium ...

American Institute of Physics2014

Stochastic Virtual Tests for High-Temperature Ceramic Matrix Composites

Varun Parameswaran Rajan

We review the development of virtual tests for high-temperature ceramic matrix composites with textile reinforcement. Success hinges on understanding the relationship between the microstructure of continuous-fiber composites, including its stochastic varia ...

2014

This study presents a dynamic-induced direct-shear model to investigate the dynamic triggering of frictional slip on simulated granular gouges. An incident P-wave is generated as a shear load and a normal stress is constantly applied on the gouge layer. Th ...

Springer Verlag2014

The experimental results of several bond tests on masonry blocks made of yellow tuff and bonded with different types of Fibre Reinforced Plastic (FRP) fabrics carried out by the authors are presented and analysed. The discussion of results is mainly focuse ...

2014

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In this paper, a combined experimental-numerical based work was undertaken to investigate the Bragg wavelength shift response of an embedded FBG sensor when subjected to different conditions of multi-axial loading (deformation). The following cases are exa ...

Mdpi Ag2013

Constitutive models for fiber-reinforced ceramic-matrix composites (CMCs) are needed to enable implementation of these materials in future engineering systems. One such constitutive model, developed by Genin and Hutchinson [1], is based on a phenomenologic ...

Elsevier2013

Effects of non-uniform strains on tensile fracture of fiber-reinforced ceramic–matrix composites have not been satisfactorily explained by existing mechanics-based models. In this paper, we use an exact model of fiber fragmentation under global load sharin ...

Elsevier2012