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Question 1 In this section, attention is directed to closely coiled standard helical tension and compression springs. They provide a push or pull force and are capable of large deflection. A helical compression spring is fabricated from ASTM A229 oil-tempered wire (Figure 1) and has the mean coil diameter D = 10 mm, wire diameter d = 0.9 mm, total number of active coils Na = 14.5, and the modulus of rigidity G = 79 GPa. Find: a. The torsional yield strength of the wire. b. The static load corresponding to the yield strength and spring constant. c. The solid and free heights and the pitch of the body coil of the spring. d. Whether buckling will be possible, if the ends are squared-ground. End surface ground flat Figure 1: Represent a compression spring

Question 1 In this section, attention is directed to closely coiled standard helical tension and compression springs. They provide a push or pull force and are capable of large deflection. A helical compression spring is fabricated from ASTM A229 oil-tempered wire (Figure 1) and has the mean coil diameter D = 10 mm, wire diameter d = 0.9 mm, total number of active coils Na = 14.5, and the modulus of rigidity G = 79 GPa. Find: a. The torsional yield strength of the wire. b. The static load corresponding to the yield strength and spring constant. c. The solid and free heights and the pitch of the body coil of the spring. d. Whether buckling will be possible, if the ends are squared-ground. End surface ground flat Figure 1: Represent a compression spring

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Question 1 In this section, attention is directed to closely coiled standard helical tension and compression springs. They provide a push or pull force and are capable of large deflection. A helical compression spring is fabricated from ASTM A229 oil-tempered wire (Figure 1) and has the mean coil diameter D = 10 mm, wire diameter d = 0.9 mm, total number of active coils Na = 14.5, and the modulus of rigidity G = 79 GPa. Find: a. The torsional yield strength of the wire. b. The static load corresponding to the yield strength and spring constant. c. The solid and free heights and the pitch of the body coil of the spring. d. Whether buckling will be possible, if the ends are squared-ground. End surface ground flat Figure 1: Represent a compression spring WA
Transcribed Image Text:Question 1 In this section, attention is directed to closely coiled standard helical tension and compression springs. They provide a push or pull force and are capable of large deflection. A helical compression spring is fabricated from ASTM A229 oil-tempered wire (Figure 1) and has the mean coil diameter D = 10 mm, wire diameter d = 0.9 mm, total number of active coils Na = 14.5, and the modulus of rigidity G = 79 GPa. Find: a. The torsional yield strength of the wire. b. The static load corresponding to the yield strength and spring constant. c. The solid and free heights and the pitch of the body coil of the spring. d. Whether buckling will be possible, if the ends are squared-ground. End surface ground flat Figure 1: Represent a compression spring WA
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