Question

I need help I got the wrong answers and don't understand why.

A polystyrene rod consisting of two cylindrical portions AB and BC is restrained at both ends and supports two 10-kip loads as shown. Take E= 0.45 x 106 psi. - 1.25 in 25 i - 2 in References eBook & Resources Section Break Difficulty: Medium Problem 09.032 - Statically indeterminate structures (constant temperature), composite rods with both ends restrained (D) value: 10.00 points Problem 09.032.a - Reaction at points in a structure Determine the reactions at A and C. (Round the final answers to two decimal places. You must provide the answers before moving to the next part.) The reactions at A and C: RA= 2.28 kips | Ro= 9.72 kips

Answer 1

Ra=3.80Kips Rc=16.20 Kips Both in upward direction

P- lokipo 25in t k 1.25in E 0.45xloopsi AB Ixd = I x (1-2572 AA 1.226 in? Are = 1x1252-, 3-14 in? isin kein Artic free body cliagram TRA 913=(RA2py? (RA-2P) using compatibility condition Total elongation ao 1s = pt SAB+ SB = 0 RAXLAB (RA-2P) ALBe = 0 AABE ABLE Rox 25 + (Ra-RX10)x15 - 1.226X0-45x16 3.14% 0.45X/06 20.391 Ra +4.777RA - gs.541=0 Tha-zolle kieran Re RA-2010 - 3.80-20 TRA= 318 kies c= 16:2okies