Mechanics of Composite Materials

Kaw, Autar

doi:10.1201/9781420058291

Cited by 616 publications

(523 citation statements)

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“…1 Structure of articular cartilage for both cellular and collagen fiber arrangement diagram of in the zones of articular [36] where E f , G f and m f are elastic modulus, shear modulu,s and Poisson's ratio of collagen fiber and E m , G m and m m are elastic modulus, shear modulus, and Poisson's ratio of proteoglycan matrix, respectively. Moreover, V fz represents collagen fibers volume fraction in the deep zone (all in z axis direction) [18][19][20].…”

Section: Mechanical Properties Of Deep Zonementioning

confidence: 99%

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A depth dependent transversely isotropic micromechanic model of articular cartilage

Elhamian

Alizadeh

Shokrieh

et al. 2015

J Mater Sci: Mater Med

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Section: Mechanical Properties Of Deep Zonementioning

confidence: 99%

“…3 and 4. To determinate the effective elastic modulus, shear modulus and Poisson's ratio perpendicular to the fiber plane (E z , G zr & m zr ), the modified three dimensional unidirectional micromechanics rule of mixture was used [18][19][20].…”

Section: Mechanical Properties Of the Superficial Zonementioning

confidence: 99%

A depth dependent transversely isotropic micromechanic model of articular cartilage

Elhamian

Alizadeh

Shokrieh

et al. 2015

J Mater Sci: Mater Med

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“…Using the constituent properties (Table 1), fiber volume fractions, and sample dimensions, the fibers and matrix of each ply are homogenized using standard strength of materials methods to obtain effective properties (Kaw, 2006). The sample geometry and a representative volume element are depicted in Figure 6.…”

Section: Ideal Intact Compositementioning

confidence: 99%

“…An effective CTE for each ply is determined following similar strength of materials homogenization methods as previously employed (Kaw, 2006). The longitudinal CTE for each ply is:…”

Section: Composite With Cracksmentioning

confidence: 99%

Crack healing in cross-ply composites observed by dynamic mechanical analysis

Nielsen

Nemat‐Nasser

2015

Journal of the Mechanics and Physics of Solids

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Cross-ply composites with healable polymer matrices are characterized using dynamic mechanical analysis (DMA). The [90,0] s samples are prepared by embedding layers of unidirectional glass or carbon fibers in 2MEP4FS, a polymer with thermally reversible covalent cross-links previously shown to be capable of healing internal cracks and fully recovering fracture toughness under ideal conditions. After fabrication, cracks in the composites' transverse plies are observed and attributed to residual thermal stresses introduced during processing.Single cantilever bending DMA measurements show the samples exhibit periods of increasing storage moduli with increasing temperature. These results are accurately modeling using simple one-dimensional composite and beam analyses. The effect of cracks on the measured stiffness is considered using a shear lag model, and the predicted crack density of the glass fiber composite falls within a range estimated by microscopy observations. Crack healing is assumed to occur as a function of temperature, and rationales for the onset and conclusion of healing are given.

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“…The main reasons for the application of composite structures are low cost, high strength and simple manufacturing process. Unfortunately, there are drawbacks or limitations to use fibre composites [14]. The advantages and disadvantages of mechanical behaviour of composite materials are widely described in many publications [3,13,15,18,33].…”

Section: Introductionmentioning

confidence: 99%

Local buckling of composite channel columns

Szymczak

Kujawa

2018

Continuum Mech. Thermodyn.

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The investigation concerns local buckling of compressed flanges of axially compressed composite channel columns. Cooperation of the member flange and web is taken into account here. The buckling mode of the member flange is defined by rotation angle a flange about the line of its connection with the web. The channel column under investigation is made of unidirectional fibre-reinforced laminate. Two approaches to member orthotropic material modelling are performed: the homogenization with the aid of theory of mixture and periodicity cell or homogenization upon the Voigt-Reuss hypothesis. The fundamental differential equation of local buckling is derived with the aid of the stationary total potential energy principle. The critical buckling stress corresponding to a number of buckling half-waves is assumed to be a minimum eigenvalue of the equation. Some numerical examples dealing with columns are given here. The analytical results are compared with the finite element stability analysis carried out by means of ABAQUS software. The paper is focused on a close analytical solution of the critical buckling stress and the associated buckling mode while the web-flange cooperation is assumed. Keywords Fibre composites · Channel column · Analytical solution · FEM List of symbols

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Mechanics of Composite Materials

Cited by 616 publications

References 0 publications

A depth dependent transversely isotropic micromechanic model of articular cartilage

A depth dependent transversely isotropic micromechanic model of articular cartilage

Crack healing in cross-ply composites observed by dynamic mechanical analysis

Local buckling of composite channel columns

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