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A new method has been developed to determine the in-plane and through-thickness thermal conductivities of polymer matrix composites. In the method, the thermal gradient produced by an imposed one-dimensional heat flow in a given direction is measured experimentally. The recorded temperature...
Two dimensional generalised plane strain finite element models have been developed to simulate some of the different local fabric geometries which influence the damage development seen in woven fabric laminates as a function of number of reinforcing layers. It is shown that the stiffness is...
The mechanics of woven fabric-based laminated composites is complex, but computational models can contribute to its enhanced understanding. In this work the architecture of a twill-weave graphite epoxy laminate was characterized experimentally by microscopy of polished sections. The mechanical...
Analysing the damaged elastic behaviour of composite materials subjected to dynamic loading requires an investigation of the strain rate influence on the damage mechanisms initiation and evolution. Low and high-speed tensile tests ( ε ̇ ≤200 s −1 ) coupled to SEM observations were conducted...
High-temperature stress relaxation behavior of symmetric angle-ply laminates made of unidirectional T800H/3631 carbon/epoxy composite is examined at relatively high strain levels. Stress relaxation tests are performed at 100 °C for 5 h on plain coupon specimens of three types of angle-ply...
An overview of the use of full-field measurement techniques for composite material and structure characterization reported in the recent literature is presented in this paper. The features of the main types of measurement techniques are first briefly described. Specific advantages of using these...
In this paper, four-point bending tests are conducted on Reinforced Concrete (RC) beams with flexural and shear deficiencies. Beams are repaired with externally bonded composite sheets. A full-field optical method, called the grid method, is utilized for measuring displacement fields over...
This papers deals with the influence of the machining procedure of carbon/epoxy and glass/epoxy composite coupons on their mechanical performances. First, a literature review is presented to summarize the rather small number of studies dedicated to this subject. Then, machining procedures are...
Damage growth and fracture at circular holes in quasi-isotropic CFRP laminates loaded in tension has been studied. The laminates were based on two weave types and of three different thicknesses. A notch edge damage analysis was performed on a layer by layer basis after decomposition of the...
A theoretical model has been developed to predict the mechanical behaviour of reinforced polymers where the matrix is nonlinear viscoelastic. The homogenisation approach was used since this allowed the global behaviour of the composite to be predicted from knowledge of the behaviour of each...
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