Probabilistic Assessment Of Composite Structures
Download Probabilistic Assessment Of Composite Structures full books in PDF, epub, and Kindle. Read online free Probabilistic Assessment Of Composite Structures ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Probabilistic Assessment of Composite Structures
Author | : National Aeronautics and Space Administration (NASA) |
Publisher | : Createspace Independent Publishing Platform |
Total Pages | : 24 |
Release | : 2018-07-10 |
Genre | : |
ISBN | : 9781722602109 |
A methodology and attendant computer code were developed and are used to computationally simulate the uncertain behavior of composite structures. The uncertain behavior includes buckling loads, stress concentration factors, displacements, stress/strain, etc., which are the consequences of the inherent uncertainties (scatter) in the primitive (independent random) variables (constituent, ply, laminate, and structural) that describe the composite structures. The computer code is IPACS (Integrated Probabilistic Assessment of Composite Structures). IPACS can simulate both composite mechanics and composite structural behavior. Application to probabilistic composite mechanics is illustrated by its use to evaluate the uncertainties in the major Poisson's ratio and in laminate stiffness and strength. IPACS' application to probabilistic structural analysis is illustrated by its used to evaluate the uncertainties in the buckling of a composite plate, the stress concentration factor in a composite panel, and the vertical displacement and ply stress in a composite aircraft wing segment. IPACS' application to probabilistic design is illustrated by its use to assess the thin composite shell (pipe). Chamis, C. C. and Shiao, Michael C. Glenn Research Center RTOP 510-02-12...
Probabilistic Assessment of Composite Structures
Author | : Michael C. Shiao |
Publisher | : |
Total Pages | : 19 |
Release | : 1993 |
Genre | : Composite materials |
ISBN | : |
Probabilistic Evaluation of Fuselage-type Composite Structures
Author | : Michael C. Shiao |
Publisher | : |
Total Pages | : 24 |
Release | : 1991 |
Genre | : Composite materials |
ISBN | : |
A Method for the Probabilistic Design Assessment of Composite Structures
Author | : Michael C. Shiao |
Publisher | : |
Total Pages | : 16 |
Release | : 1994 |
Genre | : Structural design |
ISBN | : |
Quantification of Uncertainties in the Performance of Smart Composite Structures
Author | : Michael C. Shiao |
Publisher | : |
Total Pages | : 22 |
Release | : 1993 |
Genre | : Composite materials |
ISBN | : |
Probabilistic Evaluation of Advanced Ceramic Matrix Composite Structures
Author | : National Aeronautics and Space Administration (NASA) |
Publisher | : Createspace Independent Publishing Platform |
Total Pages | : 52 |
Release | : 2018-06-03 |
Genre | : |
ISBN | : 9781720665823 |
The objective of this report is to summarize the deterministic and probabilistic structural evaluation results of two structures made with advanced ceramic composites (CMC): internally pressurized tube and uniformly loaded flange. The deterministic structural evaluation includes stress, displacement, and buckling analyses. It is carried out using the finite element code MHOST, developed for the 3-D inelastic analysis of structures that are made with advanced materials. The probabilistic evaluation is performed using the integrated probabilistic assessment of composite structures computer code IPACS. The affects of uncertainties in primitive variables related to the material, fabrication process, and loadings on the material property and structural response behavior are quantified. The primitive variables considered are: thermo-mechanical properties of fiber and matrix, fiber and void volume ratios, use temperature, and pressure. The probabilistic structural analysis and probabilistic strength results are used by IPACS to perform reliability and risk evaluation of the two structures. The results will show that the sensitivity information obtained for the two composite structures from the computational simulation can be used to alter the design process to meet desired service requirements. In addition to detailed probabilistic analysis of the two structures, the following were performed specifically on the CMC tube: (1) predicted the failure load and the buckling load, (2) performed coupled non-deterministic multi-disciplinary structural analysis, and (3) demonstrated that probabilistic sensitivities can be used to select a reduced set of design variables for optimization.Abumeri, Galib H. and Chamis, Christos C.Glenn Research CenterCERAMIC MATRIX COMPOSITES; STRESS ANALYSIS; STRUCTURAL ANALYSIS; STRUCTURAL FAILURE; FINITE ELEMENT METHOD; BUCKLING; SHEAR; PROBABILITY THEORY