June 16, 2002
June 16, 2002
June 19, 2002
7.759.1 - 7.759.8
Introduction to Fatigue in Riveted Joints and Adhesively Bonded Joints
Ajit D. Kelkar and Ronnie L. Bolick
Department of Mechanical Engineering North Carolina A&T State University Greensboro, North Carolina 27411
A new hands on approach in laboratory experimentation at the undergraduate level in the mechanical engineering curriculum presents comparison of the mechanical properties: including Tensile Strengths, Ultimate Strengths, Elongation and Fatigue Life at ambient temperature, between specimens fastened by rivets and specimens fastened by an adhesive. The reduction or elimination of mechanical fasteners in the joining of the two parts provides the following benefits: increased strength and service life, improved distribution of stress and load throughout joint, reduced weight, reduction of personnel to manufacture and manufacturing time. This experimentation is divided into three laboratory sessions each approximately 2 hours in length.
Laboratory Session One
During this session, students are introduced to the concepts of fastening materials together and their characteristics. Students then prepare specimens applying different joining methods using rivets and adhesives. When two parts are joined together they form a joint. There are many types of joints such as the ones shown in Figure 1 1 .
Figure 1. Various Types of Joints When constructing joints, the type of fastener used must be considered. Some of the basic considerations used in riveted joints are the following: · The fasteners must completely fill in the connecting holes.
Proceedings of the 2002 American Society for Engineering Education Annual Conference & Exposition Copyright ã 2002, American Society for Engineering Education
Bollick, R., & Kelkar, A. (2002, June), Introduction To Fatigue In Riveted Joints And Adhesively Bonded Joints Paper presented at 2002 Annual Conference, Montreal, Canada. 10.18260/1-2--10649
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