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Look at the figure below, and perform the following tasks: (a) Obtain approximate values of fracture...
6 a) b) c) The most important parameter that is an indication of a material's resistance...
6 a)
b)
c)
The most important parameter that is an indication of a material's resistance to deflection (eg. in beams) arising from mechanical loads is O Tensile strength O %elongation O impact toughness O ductility Yield strength o Kic Endurance limit OE The yield strength of a steel used in construction is ~ 800 MPa. The endurance limit of this steel is ~ 0.2 800 MPa 40% O 400 MPa O 1600 MPa O 200 MPa 0.4 MPa 4...
Kıc = Yovta A part has been designed in the form of a thick steel plate...
Kıc = Yovta A part has been designed in the form of a thick steel plate to support a load in tension. The design stress on the part is 1200 MPa. While in service the part will be routinely inspected with an X-ray non-destructive testing device. This X-ray inspection device will detect any interior cracks larger than 0.5mm. During the initial design of the part, the required Klc for the steel was determined to be 38MPa.m .5. This Kic value...
1.Below are stress-strain curves for 5 steels. (a) annealed low carbon steel, (b) a steel alloy...
1.Below are stress-strain curves for 5 steels. (a) annealed low carbon steel, (b) a steel alloy which has a DBTT of +50°C (c) 304 stainless steel (d) nearly pure coarse grained Fe Identify the modulus, yield stress, tensile strength, ductility, and toughness. Identify the amount of elastic strain at yield stress, tensile strength, point right before fracture, point right after fracture. 2000 -Low C steel, 1800 steel alloy, DBTT +50C 304 stainless pure Fe 1600 1400 1200 t 1000 800...
The section of shaft shown in the figure is to be designed to approximate relative sizes of d 0.7...
The section of shaft shown in the figure is to be designed to approximate relative sizes of d 0.75D and r- D/20 with diameter d conforming to that of standard rolling-bearing bore sizes. The shaft is to be made of SAE 2340 steel, heat-treated to obtain minimum strengths in the shoulder area of 175 kpsi ultimate tensile strength and 160 kpsi yield strength with a Brinell hardness not less than 370. At the shoulder the shaft is subjected to a...
7-2 The section of shaft shown in the figure is to be designed to approximate relative sizes of d...
7-2 The section of shaft shown in the figure is to be designed to approximate relative sizes of d 0.75D andD/20 with diameter d conforming to that of standard rolling-bearing bore sizes. The shaft is to be made of SAE 2340 steel, heat-treated to obtain minimum strengths in the shoulder area of 175 kpsi ultimate tensile strength and 160 kpsi yield strength with a Brinell hardness not less than 370. At the shoulder the shaft is subjected to a completely...
6 a)
b)
c)
The most important parameter that is an indication of a material's resistance to deflection (eg. in beams) arising from mechanical loads is O Tensile strength O %elongation O impact toughness O ductility Yield strength o Kic Endurance limit OE The yield strength of a steel used in construction is ~ 800 MPa. The endurance limit of this steel is ~ 0.2 800 MPa 40% O 400 MPa O 1600 MPa O 200 MPa 0.4 MPa 4...
Kıc = Yovta A part has been designed in the form of a thick steel plate to support a load in tension. The design stress on the part is 1200 MPa. While in service the part will be routinely inspected with an X-ray non-destructive testing device. This X-ray inspection device will detect any interior cracks larger than 0.5mm. During the initial design of the part, the required Klc for the steel was determined to be 38MPa.m .5. This Kic value...
1.Below are stress-strain curves for 5 steels. (a) annealed low carbon steel, (b) a steel alloy which has a DBTT of +50°C (c) 304 stainless steel (d) nearly pure coarse grained Fe Identify the modulus, yield stress, tensile strength, ductility, and toughness. Identify the amount of elastic strain at yield stress, tensile strength, point right before fracture, point right after fracture. 2000 -Low C steel, 1800 steel alloy, DBTT +50C 304 stainless pure Fe 1600 1400 1200 t 1000 800...
The section of shaft shown in the figure is to be designed to approximate relative sizes of d 0.75D and r- D/20 with diameter d conforming to that of standard rolling-bearing bore sizes. The shaft is to be made of SAE 2340 steel, heat-treated to obtain minimum strengths in the shoulder area of 175 kpsi ultimate tensile strength and 160 kpsi yield strength with a Brinell hardness not less than 370. At the shoulder the shaft is subjected to a...
7-2 The section of shaft shown in the figure is to be designed to approximate relative sizes of d 0.75D andD/20 with diameter d conforming to that of standard rolling-bearing bore sizes. The shaft is to be made of SAE 2340 steel, heat-treated to obtain minimum strengths in the shoulder area of 175 kpsi ultimate tensile strength and 160 kpsi yield strength with a Brinell hardness not less than 370. At the shoulder the shaft is subjected to a completely...
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