Composites are gaining importance in more and more structural applications because their properties can be adapted in a wide range to the according requirements.

Multiphase Mo-Si-B alloys are attractive materials for high temperature structural applications because of their high melting temperature, excellent strength, creep resistance and relatively good oxidation-resistant and fracture toughness at room temperature.

TiAl-based alloys have attracted much scientific research interest as ideal candidate materials for high temperature structural applications due to their low density, high specific strength, high specific stiffness and high temperature strength ratio.

TiAl-based alloys are one kind of attractive materials for high temperature structural applications because their outstanding mechanical properties such as high specific strength, good creep strength and acceptable oxidation resistance.

The nano-structured materials and its composites are reviewed. The potential structural applications and functional applications on remote sensing spacecraft are analyzed finally.

This present work manufactured the coating for resistance to high temperature and structural applications on the 45 steel substrate by cladding MoSi2 powders with the laser beam of high energy, and, investigated the microstruc-ture and hardness of clad coatings using XRD, SEM, EDAX and mic ohardometer respectively.

Some structural applications are enumerated for these materials, the consciousness is strengthened to study on their mechanical behavior, and the necessity is put forward that the biaxial tensile properties dependence of porosity should be investigated more comprehensively.

EAS modes were adopted to overcome the significant deficiency of excessive shear strain energy in "thin" structural applications,the number of internal DOFs is remarkably reduced and the computational efficiency is improved.

The results suggest that these green composites have excellent mechanical properties and can be considered for use in primary structural applications.

Selective measurements of heteronuclear overhauser effects: Structural applications

Intermetallic aluminides including those phases of the Nb-Al system are of interest for high-temperature structural applications.

Yttria-stabilized zirconia ceramics are considered to be one of the most important ceramic materials for use in structural applications, because of the high strength and toughness of yttria-stabilized tetragonal zirconia polycrystals.

Cylindrical shells stiffened with rings and stringers are used in many structural applications such as pipes conveying fluids or gases and acrospace.

In structural design we usually use a well-known criterion, σ≤[σ]. However, the maximum stress only covers a very small region in the structure and this region does not always coincide with the weakest point of the material used. The strength characteristics of the advanced composites are the linear elasticity and the large scatter band of strength so that the conventional criterion does not meet the design requirements very well. From the statistical point of veiw this problem is discussed and treated in this...

In structural design we usually use a well-known criterion, σ≤[σ]. However, the maximum stress only covers a very small region in the structure and this region does not always coincide with the weakest point of the material used. The strength characteristics of the advanced composites are the linear elasticity and the large scatter band of strength so that the conventional criterion does not meet the design requirements very well. From the statistical point of veiw this problem is discussed and treated in this paper, which includes four aspects; the scatter band of strength, series model, parallel model and some simple structural applications.

Cylindrical shells stiffened with rings and stringers are used in many structural applications such as in pipes conveying fluids or gases and aerospace. In this paper, the general solution is obtained for free vibration of nonlinear deformation ring-and stringer-stiffened cylindrical shell with arbitrary boundary condition by step reduction method. Finally, it is only necessary to solve a nonlinear algebraic equation. The equation is expressed as an analytic form. Its convergence is proved Three numerical...

Cylindrical shells stiffened with rings and stringers are used in many structural applications such as in pipes conveying fluids or gases and aerospace. In this paper, the general solution is obtained for free vibration of nonlinear deformation ring-and stringer-stiffened cylindrical shell with arbitrary boundary condition by step reduction method. Finally, it is only necessary to solve a nonlinear algebraic equation. The equation is expressed as an analytic form. Its convergence is proved Three numerical examples are given at the end of the paper which indicate that satisfactory results can be obtained by step reduction method.

Composites are gaining importance in more and more structural applications because their properties can be adapted in a wide range to the according requirements. In aerospace applications, above all, laminates of 2-D weavings or unidirectional tapes are used to build structural components. However, those composites have some disadvantages due to damage tolerance and impact properties as well as costly manufacturing. These weak points can be overcome by the use of three dimensional reinforced...

Composites are gaining importance in more and more structural applications because their properties can be adapted in a wide range to the according requirements. In aerospace applications, above all, laminates of 2-D weavings or unidirectional tapes are used to build structural components. However, those composites have some disadvantages due to damage tolerance and impact properties as well as costly manufacturing. These weak points can be overcome by the use of three dimensional reinforced fiber structures, produced by new textile technologies. This can on the one hand simplify manufacturing, because the lamination process is simplified and on the other hand it leads to an improvement of properties in. thickness direction, better damage tolerance and impact behaviour. The different textile technologies and manufacturing processes, being of interest for composites, are presented. Some fundamental factors of influence on textile and impregnation process are discussed, and the potential of different reinforcing geometries are summarized.