Title page for ETD etd-11092003-135228


Type of Document Master's Thesis
Author Hennessey, Christopher Michael
URN etd-11092003-135228
Title Analysis and Modeling of Snap Loads on Synthetic Fiber Ropes
Degree Master of Science
Department Civil Engineering
Advisory Committee
Advisor Name Title
Plaut, Raymond H. Committee Chair
Charney, Finley A. Committee Member
Murray, Thomas M. Committee Member
Keywords
  • Drop Tests
  • Synthetic Fiber Ropes
  • Cables
  • Snap Loads
  • Hysteresis
Date of Defense 2003-11-07
Availability unrestricted
Abstract
Analysis and Modeling of Snap

Loads on Synthetic Fiber Ropes

by

Christopher Michael Hennessey

Raymond H. Plaut, Committee Chairman

Civil Engineering

(ABSTRACT)

When a rope quickly transfers from a slack state to a taut state, a snapping action occurs and produces a large tensile force which is known as a snap load. Energy is dissipated during this snap load, and it is proposed to use synthetic fiber ropes as a type of passive earthquake damper in order to take advantage of this phenomenon. This thesis is the second phase of a multi-stage research project whose goal is to investigate and develop what will be known as Snapping-Cable Energy Dissipators (SCEDs).

The experimental data that was collected in the Master's Thesis of Nicholas Pearson was organized and analyzed as a part of this research in order to evaluate the behavior of the ropes during the snapping action. Additional tests were also conducted for this project under more controlled conditions in order to better understand how the ropes change throughout a sequence of similar snap loadings and also to determine the amount of energy that is dissipated. The data from both projects was then used as input parameters for a mathematical model that was developed to characterize the behavior of the ropes during a snap load. This model will be utilized in subsequent research involving the finite element analysis of the seismic response of structural frames containing SCEDs.

Files
  Filename       Size       Approximate Download Time (Hours:Minutes:Seconds) 
 
 28.8 Modem   56K Modem   ISDN (64 Kb)   ISDN (128 Kb)   Higher-speed Access 
  01_-_Cover.pdf 4.14 Kb 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01
  02_-_Abstract.pdf 4.74 Kb 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01
  03_-_Table_of_Cotents.pdf 41.54 Kb 00:00:11 00:00:05 00:00:05 00:00:02 < 00:00:01
  04_-_Chapter_1_-_Intro_and_Lit_Review.pdf 20.36 Kb 00:00:05 00:00:02 00:00:02 00:00:01 < 00:00:01
  05_-_Chapter_2_-_Previous_Research.pdf 160.80 Kb 00:00:44 00:00:22 00:00:20 00:00:10 < 00:00:01
  06_-_Chapter_3_-_Current_Research.pdf 180.79 Kb 00:00:50 00:00:25 00:00:22 00:00:11 < 00:00:01
  07_-_Chapter_4_-_Analysis_Procedure.pdf 112.81 Kb 00:00:31 00:00:16 00:00:14 00:00:07 < 00:00:01
  08_-_Chapter_5_-_Analysis_Results.pdf 137.06 Kb 00:00:38 00:00:19 00:00:17 00:00:08 < 00:00:01
  09_-_Chapter_6_-_Model.pdf 1.25 Mb 00:05:47 00:02:58 00:02:36 00:01:18 00:00:06
  10_-_Chapter_7_-_Summary_and_Conclusions.pdf 13.49 Kb 00:00:03 00:00:01 00:00:01 < 00:00:01 < 00:00:01
  11_-_References.pdf 7.42 Kb 00:00:02 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01
  12_-_Appendix_A.pdf 213.38 Kb 00:00:59 00:00:30 00:00:26 00:00:13 00:00:01
  13_-_Appendix_B.pdf 476.81 Kb 00:02:12 00:01:08 00:00:59 00:00:29 00:00:02
  14_-_Appendix_C.pdf 538.65 Kb 00:02:29 00:01:16 00:01:07 00:00:33 00:00:02
  15_-_Vita.pdf 4.15 Kb 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01 < 00:00:01

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