Question

initial CO Pper Laum Copper Unrestrained thermal expansion SJA AAT L LATI NICE PAL LAAEA Restrained thermal έκρηξη l=48 in Copper: • Ac= 1.550² • Ec= 17000ksi •LC = 9.5 X10%F Alum: • AA=2in² • 11000 ksi - ER •LA=13x10 ogor we will have a AT by AT = 100 °F Assume assembly heats up Find PC PA Show Ear & figure 2 Pc-PA

Answer 1

Ams Cu A1 ATz LOo'F 2 C4 free expomsian C4 CA resraned PAL ArE Pc expomn 2 Pc PA cu LAT AAI freA L OT Acy (free) equiibum equation Pa L + Pc L Dpefe)-A Cure AE Pax43 (3x1ox00x 48-g.sx6X LOD X48 5x17000 2x00 3 S 2.2 Pa 2Pc Pe 2Pc 3- S 2 Pc=4.S54k Pa9.109 k Pc At PA I0 4-53 4 55Y 3-036 Ksi CA AM SA=OA Fre- Pa L A E SA= 0.0425 in 9 109x 48 13* 106x48 x| CO O-0425 lin AcE