A CLOSE COILED HELICAL SPRING IS TO HAVE A STIFFNESS OF 1 N/MM OF COMPRESSION UNDER A MAXIMUM LOAD OF 45 N AND A MAXIMUM SHEARING STRESS OF 126 N/MM2. THE SOLID LENGTH OF THE SPRING (WHEN THE COILS ARE TOUCHING) IS TO BE 45 MM. FIND THE DIAMETER OF THE WIRE, THE MEAN DIAMETER OF THE COILS AND THE NUMBER OF COILS REQUIRED. MODULUS OF RIGIDITY G = 4.2 × 10¹ N./MM².
A CLOSE COILED HELICAL SPRING IS TO HAVE A STIFFNESS OF 1 N/MM OF COMPRESSION UNDER A MAXIMUM LOAD OF 45 N AND A MAXIMUM SHEARING STRESS OF 126 N/MM2. THE SOLID LENGTH OF THE SPRING (WHEN THE COILS ARE TOUCHING) IS TO BE 45 MM. FIND THE DIAMETER OF THE WIRE, THE MEAN DIAMETER OF THE COILS AND THE NUMBER OF COILS REQUIRED. MODULUS OF RIGIDITY G = 4.2 × 10¹ N./MM².
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
![A CLOSE COILED HELICAL SPRING IS TO HAVE A
STIFFNESS OF 1 N/MM OF COMPRESSION UNDER A
MAXIMUM LOAD OF 45 N AND A MAXIMUM SHEARING
STRESS OF 126 N/MM². THE SOLID LENGTH OF THE
SPRING (WHEN THE COILS ARE TOUCHING) IS TO BE 45
MM. FIND THE DIAMETER OF THE WIRE, THE MEAN
DIAMETER OF THE COILS AND THE NUMBER OF COILS
REQUIRED. MODULUS OF RIGIDITY G = 4.2 × 10¹
N./MM².](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F28356acf-0d8b-41a3-a1a1-cd85fa010c90%2F567276dc-84d1-4945-850d-d7054475fa5c%2Fk5z24r_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A CLOSE COILED HELICAL SPRING IS TO HAVE A
STIFFNESS OF 1 N/MM OF COMPRESSION UNDER A
MAXIMUM LOAD OF 45 N AND A MAXIMUM SHEARING
STRESS OF 126 N/MM². THE SOLID LENGTH OF THE
SPRING (WHEN THE COILS ARE TOUCHING) IS TO BE 45
MM. FIND THE DIAMETER OF THE WIRE, THE MEAN
DIAMETER OF THE COILS AND THE NUMBER OF COILS
REQUIRED. MODULUS OF RIGIDITY G = 4.2 × 10¹
N./MM².
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