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-A cast irón column has internal diameter of 200 mm, What should be the minimum external diameter so that it may carry a load of 1.6 MN , without the stress exceeding 90 N/mm2 ?

-A cast irón column has internal diameter of 200 mm, What should be the minimum external diameter so that it may carry a load of 1.6 MN , without the stress exceeding 90 N/mm2 ?

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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-A cast irón column has internal diameter of 200 mm, What should be the minimum external diameter so that it may carry a load of 1.6 MN , without the stress exceeding 90 N/mm2 ?

81=- aamov A.E Example (2): LA load of 5 KN is to be raised with the help of a steel wire . Find the minimum diameter of the steel wire if the stress is not tò exceed 100 MN /m². Solution: = 0.0125 ст 4*2 *106 P = 5 KN= 5000 N , 6 = 100 MN / m² = ? 100 N /mm %3D %3D %D 5000 100= = 7.98 8 mm %3D A * (d²) TC 4. HOME WORK: 1-Determine the elongation of the steel bar 1 m long and 1.3 cm cross-sectional area when subjected to a pull of 1500 kg. Take E=2*10° kg / cm² ? 2-A brass rod 2 cm diameter}and 1.5 m long is subjected to an axial pull of 4 tonnes. Find the stress , strain and elongation of the rod , if the modulus of elasticity for the brass is 1.0*10° kg / cm² ? 3-A cast irón column has internal diameter of 200 mm, What should be the minimum external diameter so that it may carry a load of 1.6 MN , without the stress L= IM exceeding 90N/mm² ?
Transcribed Image Text:81=- aamov A.E Example (2): LA load of 5 KN is to be raised with the help of a steel wire . Find the minimum diameter of the steel wire if the stress is not tò exceed 100 MN /m². Solution: = 0.0125 ст 4*2 *106 P = 5 KN= 5000 N , 6 = 100 MN / m² = ? 100 N /mm %3D %3D %D 5000 100= = 7.98 8 mm %3D A * (d²) TC 4. HOME WORK: 1-Determine the elongation of the steel bar 1 m long and 1.3 cm cross-sectional area when subjected to a pull of 1500 kg. Take E=2*10° kg / cm² ? 2-A brass rod 2 cm diameter}and 1.5 m long is subjected to an axial pull of 4 tonnes. Find the stress , strain and elongation of the rod , if the modulus of elasticity for the brass is 1.0*10° kg / cm² ? 3-A cast irón column has internal diameter of 200 mm, What should be the minimum external diameter so that it may carry a load of 1.6 MN , without the stress L= IM exceeding 90N/mm² ?
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