航空资料25(14)

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ALUMINIUM IN COMMERCIAL VEHICLES CHAPTER V ALUMINIUM ALLOYS FOR COMMERCIAL VEHICLES 54 | 55
9. List of standards
• EN 485 Aluminium and aluminium alloys – Sheet, strip and plate
Part 1: Technical conditions for inspection and delivery
Part 2: Mechanical properties
Part 3: Tolerances on dimensions for hot rolled products
Part 4: Tolerances on dimensions for cold rolled products
• EN 515 Aluminium and aluminium alloys – Wrought products – Temper designations
• EN 573 Aluminium and aluminium alloys – Chemical composition and form of wrought products
Part 1: Numerical designation system
Part 2: Chemical based designation system
Part 3: Chemical composition
Part 4: Forms of products
• EN 755 Aluminium and aluminium alloys – Extruded rod/bar, tube and profiles
Part 1: Technical conditions for inspection and delivery
Part 2: Mechanical properties
Part 3: Round bars, tolerances on dimensions and form
Part 4: Square bars, tolerances on dimensions and form
• EN 1706 Aluminium and aluminium alloys – Castings – Chemical composition and mechanical properties
• EN 12392 Aluminium and aluminium alloys – Wrought products – Special requirements for products
intended for the production of pressure equipment
• EN 14286 Aluminium and aluminium alloys – Weldable rolled products for the storage and transport
of dangerous goods
Registration record series Teal Sheets: International alloy designations and chemical composition limits
for wrought aluminium and wrought aluminium alloys available for free download from the EAA website:
http://www.eaa.net/en/about-aluminium/standards/international-registration/
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EUROPEAN ALUMINIUM ASSOCIATION
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1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
2. POSSIBILITIES WITH ALUMINIUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
3. SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4. ALUMINIUM VERSUS STEEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
5. LIMIT STATE DESIGN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
5.1. Philosophy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.2. What is the ultimate limit state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.3. What is the serviceability limit state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
6. SERVICEABILITY LIMIT STATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
7. ULTIMATE LIMIT STATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
7.1. Cross section classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
7.2. Load bearing resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
7.3. Welded connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
7.4. Bolted connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
8. FATIGUE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
8.1. Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
8.2. Practice: comparison between good and bad chassis solutions . . . . . . . . . . . . . . 82
9. SPECIAL DESIGN ISSUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
9.1. Tanks for the transport of dangerous goods - ADR . . . . . . . . . . . . . . . . . . . . . . . . 86
9.2. Tippers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
10. REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
CHAPTER VI
DESIGN AND CALCULATION
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EUROPEAN ALUMINIUM ASSOCIATION
1. Introduction
The new European design code
for aluminium structures is used
as a basis for this chapter. The
name of this standard is:
EN 1999 Eurocode 9: Design of
aluminium structure
Part 1-1 General structural rules
　
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