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All rights reserved. Condential and proprietary document. Fundamentals and Methods for Aeronautical Design and Analyses Ariane 4 Driving unit 6. Standard hub cap support Sandwich construction 7.
Standard rotor hub cap 8. The Industrie-Ausschuss Struktur-Berechnungsunterlagen IASB is a committee, which develops fundamentals and methods for the analysis of aeronautical structures and their application.
The IASB was founded on 25th November and consists of members from aeronautical industries, research and academic institutions and civil and military authorities. Prepared: Checked: Date:. The content of this handbook is based on international and national agreements and requirements concerning aeronautics.
It is updated continuously. The HSB is not for sale and is intended only for the use of selected recipients. Recipients are identied by the issuing committee IASB.
The HSB is used for different disciplines, e. Particularly, the HSB is used for analyses of structural components in: Aircraft design: fuselage, wing, etc.
Spacecraft design: shell, engine support, etc. Satellite design: metallic and composite components, antennas, etc.
Helicopter design: fuselage, rotor, etc. Engine design: rotor, stator, etc. Although the focus lies on aeronautical topics the HSB can be generally applied to the analysis of lightweight structure components used by other industries, e. Thus it is guaranteed that all HSB contributions are accepted by the German authorities, which simplies the procedure concerning evaluations and justications of structural components. The contributions to the HSB are in agreement with national and international methods and will be updated continuously contain international requirements e.
AGuidelines are available for different international institutions are the basis for specications to be valid for suppliers and sub-contractors A brief description of the chapters including examples is given in the following paragraphs. Amongst other topics this chapter contains: List of symbols to be used Coordinate system Atmosphere data Internal pressure loads of transport aircraft List of units to be used Denition of sonic loads Determination of section data Inter- and extrapolation Regression analyses Statistics Example: For the section given below the coordinate of the centre of shear xM is calculated provided that the moment of inertia Ix is known.
Amongst other topics this chapter contains: Metallic materials: aluminium alloys, titanium alloys, steels, heat resistant alloys Product forms: sheet, plate, bar, extrusion, forging, tube, casting Composites: carbon Fibre Reinforced Plastics, Glass Fibre Reinforced Plastics Product forms: tape, Prepreg, Roving Fibre-Metal-Laminates: ARALL, Glare Product form: sheet Example: For metallic materials, tempers and product forms, the following values are given for different thicknesses and orientations: Characteristic Static Strength Value tensile ultimate tu tensile yield ty compressive yield cy shear ultimate su bearing ultimate bru bearing yield bry E-Moduli tension, compression elongation at failure density Stress Corrosion Cracking SCC plane strain, plane stress coefcients, stiffness.
Amongst other topics this chapter contains: Analytical evaluation of joints Bearing strengths of non-removable joints Interaction of shear and tension loads Load-displacement behaviour of joints under shear loads Analyses of bolted and riveted areas Analyses of the rivet forces Guideline for the evaluation of allowable rivet forces Allowable rivet forces: solid rivets, interference t rivets, blind rivets Analyses of bolted joints Allowable bolt forces Strength of bolts and nuts Analyses of the failure loads of metallic lugs Example: For a single-shear-joint made of the aluminium alloy T3 riveted by countersunk Lockbolt interference t fasteners the static failure loads are to be determined.
From the given table the loads in N can be taken sheet thickness t, nominal diameter d : t mm 2. Amongst other topics this chapter contains: One-dimensional systems: bars, straight and curved beams, circular rings Two-dimensional systems: membranes, plates, shells Statically undetermined systems Notched components: stress concentration factors, riveted joints, lugs Load introduction problems: ange, joints Composites: laminate theory Temperature problems: evaluation of loads, stiffness, deformations Example: Determination of the stress concentration factor of an innite plate with two circular holes of different diameters under uniaxial normal stresses.
Given: Geometry, applied remote stress Solution: The stress concentration factor 1 can be found from the diagram:. Amongst other topics this chapter contains: Buckling of straight beams, plates, shells Stability of circular frames Buckling of composites Example: The buckling stress of a plane sheet with riveted stiffeners is to be determined.
Given: 1. Geometry of sheet: thickness t, pitch of the stiffeners b, pitch of the rivets p, rivet diameter d 2. Geometry of stiffeners: thickness ts , width bs , height hs 3. Materials: E-Modulus of the sheet and the stiffeners E 4. The buckling factor k depends on the data t, b, p, d, ts , bs , hs and can be taken from given diagrams.
Amongst other topics this chapter contains: Interaction of static loads applied on beams Static strength hypotheses Plasticity of one-dimensional systems Overcritical loads: Beams, plates, shells Static strength of composites and sandwich designs Evaluation of static strength tests Example: The static strength of a component loaded by compression and shear is to be determined.
The data o , o , n and m are known from test results. Amongst other topics this chapter contains: Eigenmodes Eigenfrequencies Example: The data i and i for the calculation of the eigenfrequencies of a simple-clamped beam is to be determined. Responsible Expert Chapter Dr. Learn more about Scribd Membership Home. Much more than documents. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Start Free Trial Cancel anytime.
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Search inside document. Condential and proprietary document Fundamentals and Methods for Aeronautical Design and Analyses Schagerl J. Broede Condential and proprietary document Milled frames Condential and proprietary document Turbine rotor disc Condential and proprietary document Main rotor blade 2.
Swashplate 3. Main rotor hub shaft 4. Rotating control rod 5. Condential and proprietary document are the basis for corresponding requirements being used in different industries are the basis for specic projects e. Prepared: Checked: Date: Dr.
Condential and proprietary document The buckling factor k depends on the data t, b, p, d, ts , bs , hs and can be taken from given diagrams. Condential and proprietary document Interaction curves are given for different cases. Condential and proprietary document Responsible Expert Chapter Dr. Thanakorn Vichiensamuth. Hari Harsha. Grato Jr Singco. Justin Morse. Rodrigo Lameiras. Mesafint Lisanu. Jorge Gtz. Vu Thong. Mohammed Asif N. Kristine Javier. Karan Sharma. Dangol Rupesh. Pankaj Singh Sisodiya.
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002 Hsb Imagebroschuere 2008 Abstract 16072012 0
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