## A Plane Stress Fea Problem Which Students Can Solve Using An Inexpensive Calculator

Conference

2001 Annual Conference

Location

Albuquerque, New Mexico

Publication Date

June 24, 2001

Start Date

June 24, 2001

End Date

June 27, 2001

ISSN

2153-5965

Page Count

9

Page Numbers

6.79.1 - 6.79.9

Permanent URL

https://peer.asee.org/9650

1594

#### Abstract NOTE: The first page of text has been automatically extracted and included below in lieu of an abstract

Session 1547

A Plane Stress FEA Problem Which Students Can Solve Using an Inexpensive Calculator

Patrick J. Cronin

The Pennsylvania State University New Kensington Campus

Abstract

This paper describes a stress analysis problem which can be used to introduce lower division engineering or engineering technology students to the finite element analysis (FEA) method. Step by step the student sets up the matrix equation which represents the system of simultaneous linear equations which is necessary to solve for the unknown displacements at each of the nodes. They then solve this system of equations using a numerical method which is efficient for large systems of simultaneous linear equations. Using these nodal displacements they calculate the normal and shear stresses at several different locations within the finite elements. These stresses are calculated by using the stress-displacement system of equations. This system of equations is also set up by the students. All of this they can do with an inexpensive scientific calculator.

Description of the Symbols Used.

Symbol Description Aij elements of the matrix [A] a width of the finite element b height of the finite element ci constants Dij elements of the stress-displacement matrix E modulus of elasticity Fi elements of the force matrix kij elements of the stiffness matrix lij elements of lower triangular matrix [L] t thickness of the finite element ui elements of the displacement matrix ux displacement in the x-direction uy displacement in the y-direction vi elements of the matrix [v] x coordinate along the horizontal axis y coordinate along the vertical axis

Proceedings of the 2001 American Society for Engineering Education Annual Conference & Exposition Copyright © 2001, American Society for Engineering Education

Cronin, P. J. (2001, June), A Plane Stress Fea Problem Which Students Can Solve Using An Inexpensive Calculator Paper presented at 2001 Annual Conference, Albuquerque, New Mexico. https://peer.asee.org/9650

ASEE holds the copyright on this document. It may be read by the public free of charge. Authors may archive their work on personal websites or in institutional repositories with the following citation: © 2001 American Society for Engineering Education. Other scholars may excerpt or quote from these materials with the same citation. When excerpting or quoting from Conference Proceedings, authors should, in addition to noting the ASEE copyright, list all the original authors and their institutions and name the host city of the conference. - Last updated April 1, 2015