# ADDITIONAL INFORMATION TABLE 1 IS THE EXPERIMENT DATA. THE BOLT, THE DIMENSION OF THE BOLT. USING...

TABLE 1 IS THE EXPERIMENT DATA. THE BOLT, THE DIMENSION OF THE BOLT. USING THE INFORMATION FROM TABLE 1 I'M SUPPOSED TO MAKE ANOTHER TABLE SHOWING make another table that reports tu, ty,tys both calculated from the data in table 1 using the equation from number 5 (torsional yield strength) and another column with the estimated calculations using section 7 equation and getting the information(torsional yield strength numbers from the bolt chart for each specimen)

Next in the table find tus (Calculated from the data using # 6 equation (ULTIMATE TORSIONAL STRENGTH below then and an estimated calculation using #8 equation ultimate torsional strength using the information in the bolt chart). All the dimensions and information from table 1 is to make a second table 2 with the information above.

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my calculations in table 2 are not correct i need to redo Table 2.

what is wrong with my data see instructions in photo 2 second bullett point -------

make another table that reports Tu, Ty,tys (calculated from the data using section 5 and estimated using section 7) and tus (Calculator from the data using section 6 and estimated using section 8)   The doua mi. D, and J for all 4 specimens are listed in Table 1 below. These figures were determined by using the formula's below. The demand daai are found by measuring the minor and major diameters of the threaded section in inches. Then the bolt diameter is calculated by taking the average of the drain and doi These measurements were taken before doing the test. Dmin Specimens Bolt/Identity Dmi D (avg) 1/Grade 8 0.247 0.221 0.234 0.0002942 2/Stainless Steel 0.243 0.22 0.2315 0.000281828 3/SAE Grade 2 0.2455 0.223 0.23425 0.00029546 4/A449 Grade 5 0.245 0.2325 0.000286729 Table 1 - Reporting deuindou. D and J for specimens Calculations used to do the reporting on Table 2 are listed below. The Identity was determined by the marketing on each bolt and referring to the chart, Bolt Grade Markings and Strength Chart. Tus Specimens (Bolt)/identity 1/Grade 8 2/Stainless Steel 3/SAE Grade 2 4/A449 Grade 5 Torsional yield Torque (T.) strength 207 82321.46827 2.833623 167 65704.38755 2.143379251 126 50162 25477 1.735900073 185 73100.70923 2.43661016 Table 2 - Reporting T., Ty, tus and tus Ultimate Torsional Strength 82321.46827 68588 89712 49948.45751 75005,51396 Formula's used to calculate Table 1 and Table 2 for the 3 steal bolts with Hardness Grades 2, 5, 8 and a stainless steel bolt. T, is the torque to yield which was calculated by noting the torque-rotation point where the bolt rotation continues with rapidly diminishing increase torque. T, is the ultimate torque which is the maximum torque the bolt could withstand prior to fracture.
heads, and an example of a specimen in the VILE Results • Make a single table that reports didma, D, and for all 4 specimens. • Make another table that reports T. Ty Tys (calculated from the data using section 5 and estimated using section 7), and us (calculated from the data using section 6 and estimated using section 8). EUILS - SPRING 2020 11 Use the calibrated torque Wrench to measure the torque to yield and the ultimate torque for the 4 bolts supplied. There are 3 Steel bolts with Hardness Grades 2,5,8, and a Stainless Steel bolt. 2) The torque to yield (Ty) is determined by noting the torque-rotation point where bolt rotation continues with rapidly diminishing increase in torque. 3) The ultimate torque (T) is the maximum torque the bolt can withstand prior to fracture. 4) The torsional yield strength is calculated using the following equation. Measure the minor and major diameters of the threaded section, die and des respectively, in inches. The bolt diameter, D, is calculated as the average of dmin and mat. Measure the diameters prior to running the test. 5) Calculate the torsional yield strength: where Iyo torsional yield strength (lbf'in) T-torque to yield (inⓇlbf) D = bolt diameter (in) J = *** (polar moment of inertia) 6) The ultimate torsional strength is calculated using the following equation where Tus = ultimate torsional strength (lbfin) T. - ultimate torque (in*lbf) 7) Estimate the torsional yield strength from the bolt proof load (5.). Tys = 0.5 * Syt 8) Estimate the ultimate torsional strength from the bolt tensile strength (S.). V tus = 0.75 * Sut
Grade Markings and Strength US Bolts Mechanical Properties Head Marking Grade and Material Nominal Size Range (inches) Proof Load ipsi) Min. Yield Strength (psi) Min. Tensile Strength (psi 14" thru 3/4" 55,000 57.000 Grade 2 Low or medium carbon steel 74,000 33,000 36,000 Over 3/4" thru 1-1/2 60,000 No Markings 1/4" thru 85,000 92,000 120,000 (Grade 5 Medium carbon steel, quenched and tempered 74,000 81,000 105,000 Over 1" thru 1-1/2 3 Radial Lines 1/4" thru 120,000 130,000 150,000 1-1/2" Grade 8 Medium carbon alloy steel, quenched and tempered 6 Radial Lines 85.000 92,000 120,000 1/2" thru 1-1/2" Grade A325 Carbon or Alloy Steel with or without Boron A325 All Sizes thru 1" Stainless markings vary. Most stainless is non- magnetic (18-8 Stainless Steerattay with 17-19% Chromlum and 8-13% Nickel 20,000 Min. 65,000 65,000 Min. 100,000 150,000 Typical X Typical Metric Bolts Head Marking Class and Material Nominal Size Mechanical Properties

The corrected table-2 is hereunder:

 Specimens Bolt/Identity Ultimate Torque (Tu) Yield Torque (Ty) Torsional Yield Strength (Tys) Ultimate Torsional Strength (Tus) Tys=Ty*D/2J Tys=0.5*Syt Tus=Tu*D/2*J Tus=0.75*Sut 1/Grade 8 207 82321.46827 32.73831×10^6 60,000 82.32155×10^3 112,500 2/Stainless Steel 167 65704.38755 26.98554×10^6 68.58882×10^3 48,750 3/SAE Grade 2 126 50162.25477 19.88511×10^6 27,500 49.94838×10^3 55,500 4/A449 Grade 5 185 73100.70923 29.63759×10^6 42,500 75.00549×10^3 90,000

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