Question

E-112. The rigid bar is pinned at A and supported by two aluminum rods, each having a diameter of 1 in., a modulus of elasticity Eal 10(10') ksi, and yield stress of ơi.-40 ksi. If the bar is initially vertical, determine the displacement of the end B when the force of 20 kip is applied. 20 kip 1 ft 1.5 ft 2 ft

Just wondering for this problem when substituting, how would I enter the 4 equations and 4 unknowns in a matrix in a TI-89 calculator? Substituting for all of this is tedious and I was wondering if I have it set up write to put in a matrix and how to do it.

Here’s my work.

Answer 1

떠 Dc ove 서 eds -..sp FE poins 3 to c to c cke o application d forre otips his generates foces in onds FE4D re TFe Top

tgt ct CD Ak RA Moment about A o 2MAo fate smilas tiangles Ace Are A BR SCD AC At som matenat AME (3) (2) fn substitu ting ki CD

inches CD 0.01833 inces 8 0.0733 inchea ,lotment pont 0023 inch