Version 1.0, August 31, 2001, Copyright, Hugh Jack 1993-2001
· There are a number of problems that cannot be solved with statics methods. In fact, all problems are inexact, but luckily we can solve some using statics.
· These types of problems often occur when the number of forces known is equal to the number of useful governing equations. This is known as completely constrained.
· When there are more equations than unknowns the problem may be overconstrained.
· When there are fewer equations than unknown forces, the problem may be underconstrained.
· The basic types of cases are,
· be cautious with this class of problems. You may actually be able to calculate a solution, but the answer will not be correct realistically, and mathematically speaking.
· Consider problem 2.4-1 from Hibbler
· Example #3, problem 2.4-19 from Gere and Timoshenko
