Analisis De Pernos En Bridas

Analysis of Bolting in Flanged Connections
by Jordan Christopher Baker A Master’s Engineering Project Submitted to the Graduate Faculty of Rensselaer Polytechnic Institute in Partial Fulfillment ofthe Requirements for the degree of MASTER OF MECHANICAL ENGINEERING

Approved: _________________________________________ Ernesto Gutierrez-Miravete, Master’s Engineering Project AdviserRensselaer Polytechnic Institute Hartford, Connecticut April, 2009

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© Copyright 2009 by Jordan Christopher Baker All Rights Reserved

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CONTENTS
LIST OF TABLES………………………………………………………………...LIST OF FIGURES…………………………………………………………......... iv v

ACKNOWLEDGMENT………………………………………………………….. vi NOMENCLATURE………………………………………………………………. vii ABSTRACT………………………………………………………………………. x 1.INTRODUCTION……………………………………………………………… 1 2. THEORETICAL ANALYSIS…………………………………………………. 3. RESULTS AND DISCUSSION……………………………………………….. 4. CONCLUSION………………………………………………………………… APPENDIX A…………………………………………………………………….. APPENDIXB……..……………………………………………………………… 6 13 29 20 23

REFERENCES……………………………………………………………………. 26

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LIST OF TABLES
Table 1: Effective Gasket Width………………………………………………….. 20 Table 2: Gasket Seating…………………………………………………………... 21

Table 3: Gasket Material and ContactFacing…………………………………….. 22

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LIST OF FIGURES
Figure 1: Image of a Bolted Flange Joint…………………………………………. 2 Figure 2: Bolt-Nut Connectors Failures…………………………………………... 3 Figure 3: Cross-section of aBolted Flange Joint…………………………………. Figure 4: Bolt Load Analysis……………………………………………………... 4 7

Figure 5: Bolt Fillet……………………………………………………………….. 10 Figure 6: Bolt Thread……………………………………………………………... Figure7: FEA Model of Bolt Fillet………………………………………………. 11 14

Figure 8: Number of Elements v. Fillet Stress……………………………………. 15 Figure 9: FEA of Thread Root…………………………………………………..... Figure 10: Number ofElements v. Root Stress…………………………………... Figure 11: Fillet Stress Concentration Factor…………………………………….. 16 17 23

Figure 12: Root Stress...