Classical Mechanics Solution


Elements of Machine Design[4] where al- lowable stress in screw fastenings is dis- cussed.

Third Edition, Akron: St. Marys, Los An- geles, (c) 1969/ [2] 2015 ASME Boiler and Pressure Vessel Code, An International Code . Section II Materials, Part A, Ferrous Materials Specifications, New York: American Society of Mechani- cal Engineers, 2015 Print. [3] The Locomotive, Volume XVIII, No. 1 . Hart- ford, Conn: Hartford Steam Boiler In- spection and Insurance Company, January 1897, reprint. [4] Kimball and Barr. Elements of Machine De- sign. New York: JohnWiley and Sons, 1910. [5] The American Society of Mechanical En- gineers. Pressure Vessel and Piping Design. Collected papers 1927-1959, New York: 1960 Print. [6] Gough, H.J. “First Report of the Pipe Flange Research Committee,” Pipe Flanges Research Committee, 1936 Print/ [7] Ibrahim, RA, Pettit, C.L. “Uncertainties and Dynamic Problems of Bolted Joints and Other Fasteners,” Journal of Sound and Vibration, Vol. 279, 2003 Print: 857- 936 [8] Valance and Doughtie. Design of Machine Members. Table 98, First Edition, New York: McGraw Hill Book Company, Inc., 1943 Print. [9] Rossheim, D.B, Markl, A.R.C. “The Sig- nificance of, and Suggested Limits for, the Stress in Pipelines due to the Com- bined Effects of Pressure and Expansion,” ASME Trans., Vol. 62. No. 5, New York, ASME,1940. [10] Walker, J.H, Crocker, Sabin. Piping Hand- book . First edition. New York & London: McGraw-Hill Book Company, 1930 Print.

“For ordinary purposes, where overstraining is not likely to occur, or for large bolts, 8,000 to 10,000 lbs. per square inch may be allowed, for steel. For such work as steam and hy- draulic joints, where the ini- tial stress may be large, from 6,000 to 8,000 lbs. per square inch should be allowed, de- pending on the conditions and quality of material employed, and if shocks are liable to oc- cur, stresses as low as 3,000 to 4,000 are often preferable.”

IX. C onclusion When using the design-by-method solution to component selection, the user simply selects a gasket material not injuriously affected by the media and then chooses bolting from a list using a simple set of limit rules. When using ASME B16 flanges, the user simply selects a gasket material not injuriously affected by the media and then chooses bolting from a list using a simple set of limit rules. Design-by-formula and design-by-analysis re- quire greater detail and responsibility. The de- signing engineer has more decisions to make. By understanding the logic behind the Min- imum Required Bolt Load formula [MRBL], he/she can make better decisions. This paper is an offer to the civil and mechanical engi- neering community to self-analyze the classical mechanics of the ASME Minimum Required Bolt Load. R eferences [1] The Goodyear Rubber and Tire Company. Handbook of Molded and Extruded Rubber.


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