Aluminium Design and Construction - Chapter 9 docx

... Figure 9. 13 for section details. Copyright 199 9 by Taylor & Francis Group. All Rights Reserved. Figure 9. 13 Sections covered in Table 9. 2. Figure 9. 12 Root reinforcement. Figure 9. 11 Type-R sections ... Radial-symmetric sections. k=1 3. Skew-symmetric sections. k=1 4. Mono-symmetric sections, k can be read from Figure 9. 10 or else calculated from the corresponding formula:...

Ngày tải lên: 22/07/2014, 18:22

... cure. Copyright 199 9 by Taylor & Francis Group. All Rights Reserved. where p a =limiting stress for unwelded parent metal, and k z1 = softening factor (Section 6.4.1). For the non-heat-treatable ... already been covered under member design in Chapters 8 and 9. Here we just consider A and B. 11.3.2 Basic checking procedure Looking first at the loading cases (a) and (b), the bas...

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... bolts com-plying with BS.4 395 (HSFG) or BS.3 692 (Precision Bolts). They may also be used for black bolts (BS.4 190 ), provided these are faced under the head and turned on the shank. Copyright 199 9 ... elastic limit. Copyright 199 9 by Taylor & Francis Group. All Rights Reserved. Figure 12.7 Fatigue endurance curves for aluminium. C=constant amplitude loading, V=variable amplitude...

Ngày tải lên: 22/07/2014, 18:22

... bisymmetric, radial-symmetric or skew-symmetric S coincides with G and g=0. For sections entirely composed of radiating outstand elements, such as angles and tees (‘type-R’ sections, Figure 9. 7), S lies ... expression (10. 19) . 2. Refer to Figure 10.10 for geometry and definition of N. Copyright 199 9 by Taylor & Francis Group. All Rights Reserved. where b, t=element width and...

Ngày tải lên: 22/07/2014, 18:22

... example. Comparison between BS 8118 and the more rigorous treatment of Section 8.2 .9, covering the fully-compact case (FC) and the semi- compact case (SC). Copyright 199 9 by Taylor & Francis Group. ... (8.28) M=0.1dV (8. 29) where: q=mean shear stress acting in the end-panel of the web (under factored loading), based on the full area of the web-plate and tongue- Copyright 19...

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... Sections 9. 5.4, 9. 6 .9. Copyright 199 9 by Taylor & Francis Group. All Rights Reserved. (see Section 7.1.3). The pattern for outstands is similar, but with a different ß-scale (about one-third). ... element. Stress-pattern at failure, and assumed effective section. N=non-welded, W=with edge-welds. Figure 7.5 Slender outstand. Stress- pattern at failure, and assumed effective sect...

Ngày tải lên: 22/07/2014, 18:22

... material and also non-heat-treatable material there is negligible dip at A, and k z3 =k z1 . 6.4.2 Heat-treated material Table 6.1 lists proposed k z -values for MIG-welded joints in 6xxx and 7xxx-series ... of RD method and one-inch rule. RD method: N=normal thermal control; S=strict thermal control. One-inch rule: curve 1 assumes arcs; curve 2 assumes square corners. Copyright 199 9...

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... (5.6), (5.7). 2. The resulting families of design curves are presented as follows: LT, Figure 8.22; C1, 2, 3, Figure 9. 2; T1, 2 Figure 9. 9. Copyright 199 9 by Taylor & Francis Group. All Rights ... of ultimate/proof ratio. Copyright 199 9 by Taylor & Francis Group. All Rights Reserved. CHAPTER 5 Limit state design and limiting stresses British Standard BS.8118 follows...

Ngày tải lên: 22/07/2014, 18:22

... minimum percentage of aluminium over and above 99 .00. Thus ‘1050’ refers to a material having a purity of at least 99 .50%. Possible purities range from 99 .00 to 99 .99 %. Pure aluminium is weak, with ... In the O or F condition, pure aluminium is relatively soft, and is used when high formability is needed. The most ductile version is ‘super-purity’ (99 .99 % pure aluminium)...

Ngày tải lên: 22/07/2014, 18:22

... technique is to employ temperature-indicating crayons. Minimum annealing temperatures are: 1xxx-series, 360°C; 3xxx-series, 400°C; 5xxx-series, 350°C. Copyright 199 9 by Taylor & Francis Group. ... for non-aeronautical use are usually in the stronger kind of 6xxx-series alloy. They can be either machined from T6-condition bar-stock, or forged and then artificially aged (T8-condition)....

Ngày tải lên: 22/07/2014, 18:22