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- W2313773993 abstract "Computational simulation methods are presented for probabilistically assessing the behavior of tailored composite structures. The simulation is based on starting with minimum material behavior information at the most fundamental material scale, i.e., fiberlmatrix constituents at room temperature. Integrated Composite Analyzer ( ICAN) , finite element simulator, and specialized codes such as BLASIM (Blade Assessment for Lce Impact) are used to simulate and tailor the hot and wet material behavior and structure response at all composite scales. Composite micro-mechanics and laminate theories in conjunction with a nonlinear multi-factor interactive material characterization model are used to synthesize the material resistance from fiber/ matrix, to ply, to laminate scales. The uncertamties in all relevant design variables are quantified for the tailored structure. The Fast Probability Integrator is then used to assess the scatter in the composite structure material behavior and structure response. Sensitivities of the response to design variables are computed. The methods and corresponding computer codes are demonstrated for (1) tailoring the weight of an aircraft blade with respect to relevant design variables within requisite design constraints and ( 2 ) probabilistically * Director, Structures & Materials Dept . Associate Fellow AIAA + Senior Aerospace Scientist, Aerospace Technology Directorate Fellow AIAA Copyright c 1994 by thc American Inslitulc of kr-ul io ard Astronaulics, Inc. No copyright is asserted in thc United S l a b lndcr titb 17, U S . Ccdc. U S . Covcmmnl has a royally-lrec lilo cxc& all righls lmdcr thc cqyrighl c l a a krcin for gwemmnl p q x e c s . All righls a n =md by Ihc cqyrighl owncr. assessing the effect of design variable uncertainties on the tailored blade. The demonstration results for the layered composite blade show the range of the tailored blade weight as governed by the uncertainties in design variables. The blade weight is found to be the most sensitive to the titanium density and thickness. The wealth of information obtained will help guide the design of complex composite structures operating in aggressive and naturally uncertain service environments ." @default.
- W2313773993 created "2016-06-24" @default.
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- W2313773993 date "1994-04-18" @default.
- W2313773993 modified "2023-10-16" @default.
- W2313773993 title "Probabilistic assessment of tailored composite structures" @default.
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- W2313773993 doi "https://doi.org/10.2514/6.1994-1418" @default.
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