Date of Award

Spring 2000

Degree Type

Thesis - Restricted

Degree Name

Master of Science (MS)

Department

Mechanical Engineering

First Advisor

Stango, Robert J.

Second Advisor

Heinrich, Stephen M.

Third Advisor

Nigro, Nicholas J.

Abstract

A closed-form expression for the shear stiffness k of a solder joint, defined as the shear force applied at one end of the joint that results in a relative unit displacement between both ends, was derived in Heinrich et al, 1996a, assuming short beam behavior. In order to check the accuracy of that expression, a finite element analysis is performed. Three different joint shapes-- convex, cylindrical and concave-- are considered. The corresponding values of the shear stiffness generated are compared to the short beam analytical estimates. The difference between the two approaches is investigated and further work is suggested.

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