61–70 von 159 Ergebnissen
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    Atomic oxygen resistant inorganic materials for LEO applications

    Poire, E. / Lachance, J. | Tema Archiv | 1999
    Conventional dimethylsiloxane polymers (silicones) have a high erosion rate in atomic oxygen which make them unsuitable for long term ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    Detection of cracks in aluminum beams using fiber optic polarimetric sensor

    Ma, Jianjun / Anand Asundi | Tema Archiv | 1999
    On line monitoring of crack development in aircraft in active service is of great significance for flight safety. The fiber optic sensor ...

    Development of a repairable IR composite window

    Ondercin, R.J. / Goldman, L.M. / Harker, A.B. | Tema Archiv | 1999
    limiting feature in the readiness and life-cycle costs for such IR systems is the durability of the exposed optical window in the harsh land and ...

    Space durable polymeric films: advanced materials for inflatable structures and thermal control applications

    Schuler, P. / Haghighat, R. | Tema Archiv | 1999
    excellent VUV stability and radiation resistance in ground based simulation tests. Two applications for these films include large inflatable ...
    Verlag: Society for the Advancement of Material and Process Engineering (SAMPE) , Covina

    3-layered 3D flex based MCM: electrical characterization and reliability issues

    Morrison, W.B. / Railkar, T.A. / Malshe, A.P. et al. | Tema Archiv | 1999
    Polyimide flex is an accepted substrate material for commercial and specialized electronic packaging applications. The advantages of using ...

    Health monitoring of structures using fiber optic sensors

    Asundi, A. | Tema Archiv | 1999
    monitoring since the design methodology for these materials is still under development. While conventional NDT methods are improving, an on-line ...

    Impact analysis of automotive structures with distributed smart material systems

    Peelamedu, S.M. / Naganathan, N.G. / Buckley, S. | Tema Archiv | 1999
    material site is predicted accounting for the material properties, piezoceramic thickness, adhesive thickness including the effect of adhesives. A ...

    Lamb wave assessment of fatigue damage in aluminum plates

    Grondel, S. / Moulin, E. / Delebarre, C. | Tema Archiv | 1999
    and compare it with delay evolution. Results are obtained for two types of fatigue sequences. It is experimentally shown that the relative ...

    Aeroelastic control of a smart composite plate with delaminations

    Nam, Changho / Chattopadhyay, A. / Kim, Youdan | Tema Archiv | 1999
    designed to enhance the dynamic stability of the delaminated composite wing. The refined higher order theory for analyzing an adaptive composite ...

    Structural dynamic health monitoring of adaptive CFRP-structures

    Kaiser, S. / Melcher, J. / Breitbach, E. et al. | Tema Archiv | 1999
    The DLR Institute of Structural Mechanics is engaged in the construction and optimization of adaptive structures for aerospace and ...