A ¾ in. UNF, grade 7 bolt with rolled threads is used in a joint having...
A ¾ in. UNF, grade 7 bolt with rolled threads is used in a joint having a soft gasket for which the clamped member stiffness is only half the bolt stiffness. The initial bolt tightening corresponds to Fi= 16000d, where d is in inches and Fi in lbs. During operation, there is an external separating force that fluctuates between 0 and P. Assuming a design factor of safety of 2:
a) Estimate the Maximum P that would not cause eventual bolt fatigue failure (Goodman criterion).
b) Estimate the maximum value of P that would not cause joint separation.
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A ¾ in. UNF, grade 7 bolt with rolled threads is used in a joint
having...
An aluminum joint is clamped using an M8 x 1.25 class 10.9 fastener with rolled threads;...
An aluminum joint is clamped using an M8 x 1.25 class 10.9 fastener with rolled threads; the bolt was initially tightened to 80% of its proof load. Joint stiffness is twice that of the bolt. A cyclic external tensile service load that fluctuates between 0 and 5 kN is applied to the bolted joint system. bolt for infinite life, with 50% confidence level. The joint operates at room temperature. Determine the fatigue safety factor of the Hint: check also for...
QUESTION 2 The end-cap of a pressure vessel as shown in Figure 2 is secured by...
QUESTION 2 The end-cap of a pressure vessel as shown in Figure 2 is secured by 10 off M10 x SAE class 10.9 bolts (with rolled threads). A soft gasket is used such that the clamped member stiffness is one quarter of the bolt stiffness. The internal diameter of the pressure vessel is 140 mm and the pressure in the vessel varies from 0 to P MPa gauge. Assuming that the bolts are initially tightened to 80% of their yield...
[3]. (3 marks) Figure below shows a bolted joint subjected to an external force P that fluctuates...
[3]. (3 marks) Figure below shows a bolted joint subjected to an external force P that fluctuates from 0 to 7 kips The steel bolt specification is 5/8"-11 UNC, SAE grade 5 material with rolled threads. The clamped members are steel of length 1.25 in each (with a total length of 2.5 in). Plain wide washers are utilized at both ends of the bolt. [a]. Using the Goodman line, determine the factor of safety guarding against fatigue failure for the...
131- (3 marks) Figure below shows a bolted joint subjected to an external force P that fluctuates...
131- (3 marks) Figure below shows a bolted joint subjected to an external force P that fluctuates from 0 to 7 kips. The steel bolt specification is 5/8"-11 UNC, SAE grade 5 material with rolled threads. The clamped members are steel of length 1.25 in each (with a total length of 2.5 in). Plain wide washers are utilized at both ends of the bolt. [a]. Using the Goodman line, determine the factor of safety guarding against fatigue failure for the...
Ajoint is composed of a ¾ in.-16 UNF fastener (Steel Grade 5) with cut threads clamping...
Ajoint is composed of a ¾ in.-16 UNF fastener (Steel Grade 5) with cut threads clamping 2 Aluminum plates. The clamped members are 5 times stiffer than the bolt. If the initial preload is 80% of the bolt's proof load, what is the service load that would cause joint separation? Assume that the extemal load is applied at the exact location of the bolt (bolt load factor n-I The fastener in the joint analyzed in Problem 1 is tightened to...
The material is steel. hence the ultimate strength can be found.
the
material is steel. hence the ultimate strength can be found.
131- (3 marks) Figure below shows a bolted joint subjected to an external force P that fluctuates from 0 to 7 kips. The steel bolt specification is 5/8"-11 UNC, SAE grade 5 material with rolled threads. The clamped members are steel of length 1.25 in each (with a total length of 2.5 in). Plain wide washers are utilized at both ends of the bolt. [a]. Using the Goodman line,...
An M30 × 3.5 ISO grade 8.8 bolt is used in a joint at a preload...
An M30 × 3.5 ISO grade 8.8 bolt is used in a joint at a preload level recommended for reused connections, and the joint is subject to a repeated tensile fatigue load of P = 65 kN per bolt. The joint constant is C = 0.25. Determine the static load factors; [12 pts.] The factor of safety guarding against a fatigue failure based on the Goodman fatigue criterion. [18 pts.]
Need a perfect handwriting or typed PROBLEM #3 (50 points) e shows a portion of a...
Need a perfect handwriting or typed
PROBLEM #3 (50 points) e shows a portion of a high-pressure cyindrical boliler accumulator havwin plate is affixed to the flat head of the cylinder using a number of bolts of M 16 x 2 coorso (property class The maximum total pressure load acting on the end plate is 144 kN. Twelve (12) bolts ar pressure load fluctuates between zero and its maximum value. Clamped parts have a times the bolt stiffness ko. The...
T'he section of the sealed joint shown in the figure below is loaded by a repeated...
T'he section of the sealed joint shown in the figure below is loaded by a repeated force P - 6 kip. The members have E-16 Mpsi. The thread has its was determined as being 2.13 times bolt stiffness. (a) What are the respective values of proof, yield, and ultimate strength of this rolled, and has been carefully preloaded to Fi 25 kip. Joint stiffness bolt material? Show how you determined this. reduced to 5000 lb (assume that the bolt remains...
For a bolted assembly with eight bolts, the stiffness of cach bolt is k 1.0 MN/mm...
For a bolted assembly with eight bolts, the stiffness of cach bolt is k 1.0 MN/mm and the stiffness of the members is k26 MN/mm per bolt. The bolts are preloaded to 75 peroner of proof strength. Assume the external load is equally distrihuted to all the bolts. The bolts am M6 x1 class 5.8 with rolled threads. A fluctuating external load is applied to the cntire with P 60 kN and P - 20 kN. (a) Determine the yielding...
An aluminum joint is clamped using an M8 x 1.25 class 10.9 fastener with rolled threads; the bolt was initially tightened to 80% of its proof load. Joint stiffness is twice that of the bolt. A cyclic external tensile service load that fluctuates between 0 and 5 kN is applied to the bolted joint system. bolt for infinite life, with 50% confidence level. The joint operates at room temperature. Determine the fatigue safety factor of the Hint: check also for...
QUESTION 2 The end-cap of a pressure vessel as shown in Figure 2 is secured by 10 off M10 x SAE class 10.9 bolts (with rolled threads). A soft gasket is used such that the clamped member stiffness is one quarter of the bolt stiffness. The internal diameter of the pressure vessel is 140 mm and the pressure in the vessel varies from 0 to P MPa gauge. Assuming that the bolts are initially tightened to 80% of their yield...
[3]. (3 marks) Figure below shows a bolted joint subjected to an external force P that fluctuates from 0 to 7 kips The steel bolt specification is 5/8"-11 UNC, SAE grade 5 material with rolled threads. The clamped members are steel of length 1.25 in each (with a total length of 2.5 in). Plain wide washers are utilized at both ends of the bolt. [a]. Using the Goodman line, determine the factor of safety guarding against fatigue failure for the...
131- (3 marks) Figure below shows a bolted joint subjected to an external force P that fluctuates from 0 to 7 kips. The steel bolt specification is 5/8"-11 UNC, SAE grade 5 material with rolled threads. The clamped members are steel of length 1.25 in each (with a total length of 2.5 in). Plain wide washers are utilized at both ends of the bolt. [a]. Using the Goodman line, determine the factor of safety guarding against fatigue failure for the...
Ajoint is composed of a ¾ in.-16 UNF fastener (Steel Grade 5) with cut threads clamping 2 Aluminum plates. The clamped members are 5 times stiffer than the bolt. If the initial preload is 80% of the bolt's proof load, what is the service load that would cause joint separation? Assume that the extemal load is applied at the exact location of the bolt (bolt load factor n-I The fastener in the joint analyzed in Problem 1 is tightened to...
the
material is steel. hence the ultimate strength can be found.
131- (3 marks) Figure below shows a bolted joint subjected to an external force P that fluctuates from 0 to 7 kips. The steel bolt specification is 5/8"-11 UNC, SAE grade 5 material with rolled threads. The clamped members are steel of length 1.25 in each (with a total length of 2.5 in). Plain wide washers are utilized at both ends of the bolt. [a]. Using the Goodman line,...
Need a perfect handwriting or typed
PROBLEM #3 (50 points) e shows a portion of a high-pressure cyindrical boliler accumulator havwin plate is affixed to the flat head of the cylinder using a number of bolts of M 16 x 2 coorso (property class The maximum total pressure load acting on the end plate is 144 kN. Twelve (12) bolts ar pressure load fluctuates between zero and its maximum value. Clamped parts have a times the bolt stiffness ko. The...
T'he section of the sealed joint shown in the figure below is loaded by a repeated force P - 6 kip. The members have E-16 Mpsi. The thread has its was determined as being 2.13 times bolt stiffness. (a) What are the respective values of proof, yield, and ultimate strength of this rolled, and has been carefully preloaded to Fi 25 kip. Joint stiffness bolt material? Show how you determined this. reduced to 5000 lb (assume that the bolt remains...
For a bolted assembly with eight bolts, the stiffness of cach bolt is k 1.0 MN/mm and the stiffness of the members is k26 MN/mm per bolt. The bolts are preloaded to 75 peroner of proof strength. Assume the external load is equally distrihuted to all the bolts. The bolts am M6 x1 class 5.8 with rolled threads. A fluctuating external load is applied to the cntire with P 60 kN and P - 20 kN. (a) Determine the yielding...
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