Title page for ETD etd-05052005-003116


Type of Document Master's Thesis
Author Cassino, Christopher
Author's Email Address cassincd@westinghouse.com
URN etd-05052005-003116
Title Characterization and Development of General Material Models for use in Modeling Structures Bonded with Ductile Adhesives
Degree Master of Science
Department Mechanical Engineering
Advisory Committee
Advisor Name Title
West, Robert L. Jr. Committee Chair
Johnson, Eric R. Committee Co-Chair
Dillard, David A. Committee Member
Mitchell, Larry D. Committee Member
Keywords
  • Finite Element Analysis
  • Nonlinear material models
  • Fracture
  • Adhesives
Date of Defense 2005-04-22
Availability unrestricted
Abstract
Structural adhesives are materials that are capable of bearing significant loads in shear, and sometimes tension, over a range of strains and strain rates. Adhesively bonded structures can dissipate large amounts of mechanical energy and can be lighter and more efficient than many bolted or vibration welded parts. The largest barrier to using structural adhesives in more applications is the many challenges engineers are presented with when designing and analyzing adhesively bonded structures. This study develops, characterizes and compares several material models for use in finite element analysis of adhesively bonded structures, in general, and a bonded tongue and groove (TNG) joint in particular. The results indicate that it is possible to develop a general material model for ductile adhesives used in structural applications under quasi-static conditions. Furthermore, the results also show that it is also possible to take bulk material data and apply it to an adhesively bonded specimen provided that the mode of failure of the bulk test specimen closely approximates the mode of failure of the bonded joint.
Files
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