Materials for Civil and Construction Engineers (4th Edition)
4th Edition
ISBN: 9780134320533
Author: Michael S. Mamlouk, John P. Zaniewski
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 1.39QP
In Problem 1.38, if the rod is snugly fitted against two immovable non-conducting walls at a temperature of 15°C and then heated uniformly to 115°C, what is its length at 115°C? If the modulus of elasticity of steel is 207 GPa, what is the stress induced in the bar? Is this stress tension or compression?
1.38 A steel rod, which is free to move, has a length of 200 mm and diameter of 20 mm at a temperature of 15°C. If the rod is heated uniformly to 115°C, determine the length and the diameter of this rod to the nearest micron at the new temperature if the linear coefficient of thermal expansion of steel is 12.5 × 10–6 m/m/C. Is there a stress on the rod at 115°C?
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Question 2
(a) A simple circular hollow section (CHS) tubular K-joint in a steel structure, subjected to balanced
axial loading, is illustrated in Figure 2a. Determine the maximum hot spot stress at the joint
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(b) The steel structure is installed in the seawater with cathodic protection. Determine the number of
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(c) Estimate the number of load repetitions required to induce fatigue failure in the tubular joint, based
on the load history provided in Figure 2b. The nominal yield and ultimate tensile strength are 355
N/mm² and 510 N/mm², respectively. Assume a damage limit of 1.0. Use the Modified Goodman
formulation to determine the equivalent completely reversed stress.
(d) Describe briefly the procedure to determine the hot…
The steel member is a fillet welded built-up section that comprises two flange plates (100mm x 20mm) and a
web plate (250mm x 10mm) as depicted in Section A-A. The leg size of the weld is 8 mm. Use an
appropriate consequence class. Based on the damage tolerant method and the modified Goodman equation.
Determine an equivalent completely reversed stress. Ignore the vibration and dynamic amplification. Use
Euro-code 1993-1-9.
(a) Calculate the maximum and minimum stresses at steel member section A-A.
(b) Check the fatigue resistance of the steel member at Section A-A using the fatigue limit.
(c) Discuss the possible failure mode of the steel member due to fatigue loading.
State your design assumptions, if any.
Steel plate (Flange)
100mm x 20mm
10.0 m
Fillet weld (manual)
(Typical)
Steel plate (Web)
250mm x 10 mm
Steel plate (Flange)
100mm x 20mm
Section A-A
Fixed end
Welded built-up
steel section
5.0 m
A
2.5m
3.0 m
Fatigue load range 5 kN
A
Total weight of steel section
Total weight of…
30
20
10
Stress
N/mm² 0
-10
-20
-30
Time
Question 1
A Grade S355 steel member, which forms part of the structural framework supporting a storage tank in a
warehouse, is subjected to various loads, as shown in Figure 1. The yield and tensile strength of the steel
member are 355 N/mm² and 510 N/mm², respectively. The steel member is subjected to axial tension due to
its self-weight and appurtenances of 40.0kN. The 10.0kN storage tank is positioned 1.0 m from the
centreline of the steel member, and it experiences a fatigue load range of 5.0kN.
The steel member is a fillet welded built-up section that comprises two flange plates (100mm x 20mm) and a
web plate (250mm x 10mm) as depicted in Section A-A. The leg size of the weld is 8 mm. Use an
appropriate consequence class. Based on the damage tolerant method and the modified Goodman equation.
Determine an equivalent completely reversed stress. Ignore the vibration and dynamic amplification. Use
Euro-code 1993-1-9.
(a) Calculate the maximum…
Chapter 1 Solutions
Materials for Civil and Construction Engineers (4th Edition)
Ch. 1 - State three examples of a static load application...Ch. 1 - A material has the stressstrain behavior shown in...Ch. 1 - A tensile load of 50.000 lb is applied to a metal...Ch. 1 - A tensile load of 190 kN is applied to a round...Ch. 1 - A cylinder with a 6.0 in. diameter and 12.0 in....Ch. 1 - A metal rod with 0.5 inch diameter is subjected to...Ch. 1 - A rectangular block of aluminum 30 mm 60 mm 90...Ch. 1 - A plastic cube with a 4 in. 4 in. 4 in. is...Ch. 1 - A material has a stressstrain relationship that...Ch. 1 - On a graph, show the stressstrain relationship...
Ch. 1 - The rectangular block shown in Figure P1.11 is...Ch. 1 - The rectangular metal block shown in Figure P1.11...Ch. 1 - A cylindrical rod with a length of 380 mm and a...Ch. 1 - A cylindrical rod with a radius of 0.3 in. and a...Ch. 1 - A cylindrical rod with a diameter of 15.24 mm and...Ch. 1 - The stressstrain relationship shown in Figure...Ch. 1 - A tension test performed on a metal specimen to...Ch. 1 - An alloy has a yield strength of 41 ksi, a tensile...Ch. 1 - Prob. 1.21QPCh. 1 - Figure P1.22 shows (i) elasticperfectly plastic...Ch. 1 - An elastoplastic material with strain hardening...Ch. 1 - A brace alloy rod having a cross sectional area of...Ch. 1 - A brass alloy rod having a cross sectional area of...Ch. 1 - A copper rod with a diameter of 19 mm, modulus of...Ch. 1 - A copper rod with a diameter of 0.5 in., modulus...Ch. 1 - Define the following material behavior and provide...Ch. 1 - An asphalt concrete cylindrical specimen with a...Ch. 1 - What are the differences between modulus of...Ch. 1 - Prob. 1.33QPCh. 1 - A metal rod having a diameter of 10 mm is...Ch. 1 - What is the factor of safety? On what basis is its...Ch. 1 - Prob. 1.36QPCh. 1 - Prob. 1.37QPCh. 1 - A steel rod, which is free to move, has a length...Ch. 1 - In Problem 1.38, if the rod is snugly fitted...Ch. 1 - A 4-m-long steel plate with a rectangular cross...Ch. 1 - Estimate the tensile strength required to prevent...Ch. 1 - Prob. 1.42QPCh. 1 - Briefly discuss the variability of construction...Ch. 1 - In order to evaluate the properties of a material,...Ch. 1 - A contractor claims that the mean compressive...Ch. 1 - A contractor claims that the mean compressive...Ch. 1 - Prob. 1.47QPCh. 1 - Prob. 1.48QPCh. 1 - Prob. 1.49QPCh. 1 - Briefly discuss the concept behind each of the...Ch. 1 - Referring to the dial gauge shown in Figure P1.51,...Ch. 1 - Repeat Problem 1.51 using the dial gauge shown in...Ch. 1 - Measurements should be reported to the nearest...Ch. 1 - During calibration of an LVDT, the data shown in...Ch. 1 - During calibration of an LVDT, the data shown in...
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