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An elastic–plastic thermal stress analysis has been carried out on steel-fibre-reinforced aluminum-matrix composite beams. The temperature takes the values zero and T 0 at the upper–lower surfaces and on the middle axis, respectively, and is chosen to vary parabolically. The solution is...
One of the causes of a reduction in the compressive strength of a composite material containing delaminations is the buckling of the delaminated plies. To understand the effect of delamination geometry on the compressive behaviour of laminated composite materials, compression tests were carried...
A testing methodology for the determination of residual thermal stresses in the polymer-matrix of unidirectional polymer-matrix composites has been proposed in Ref. (1) (Benedikt B, Kumosa M, Predecki PK, Kumosa L, Castelli MG, Sutter JK. An analysis of residual thermal stresses in a...
In steel ladles (steel industry) or in coal-fired power plants (energy production), the refractory linings anchored to the steel structure (casing) are subjected to significant thermal loadings which lead to cracking (owing to the difference between the thermal expansion coefficients). A first...
This paper describes details of an improved delamination criterion for laminated composite structures and its implementation to LS-DYNA3D. Out-of-plane stresses have been taken into consideration for damage initiation. The new delamination criterion, verified by experimental results for...
This paper presents a method for determining safety factors which must be taken into account when designing laminates for long-term applications. The method requires two steps: the first is a behavioral model able to predict time-dependent phenomena, and the second is a reliability method. The...
The deformation and fracture behavior of a newly developed Al 2 O 3 /YAG composite, fabricated by the unidirectional solidification of a eutectic composition, was investigated by means of bending tests between room temperature and 2023 K, on specimens whose longitudinal directions were parallel...
This paper deals with the characterization and modeling of the failure behavior of laminates with application to multilayer plain weft-knitted-fabric-reinforced composites. Experiments have been performed to measure the uniaxial tensile strengths of eight knitted-fabric laminates with lay-ups of...
Many elegant techniques have been developed for the quantification of composite micromechanical parameters in recent years. Unfortunately most of these techniques have found little enthusiastic support in the industrial product development environment. We have developed an improved method for...
The present work shows that it is possible to increase the fatigue life and endurance limit of Al 6061/20% SiC p composite by means of coatings of titanium sputtered at room temperature. Coatings seal defects always present on the external surface of the composite, retard crack growth thus lead...
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