Question

two-member truss is subjected to a load P 8000 N. Me mber 1-2 is 400 mm long. 4.12. A ember 1-3 was manufactured to be 505 mm long instead of 500 mm. However, it was forced into place. Determine stresses in the members assuming that member 1-3 was manufactured to its correct (a) the length of 500 mm load P, of course). pression in the text.) Take cross-sectional areas 750 mm2, E 200 GPa (b) thestresses in the members as a result of member 1-3 b eing forced into place (and the teat ths as an inl train poblem and use the temperature lod vecaor ev. 400 mm 300 mm 1 3 FIGURE P4.12 Expressiong f unture load (Ea. 4.22)

Answer 1

1 2. 300 3 tvim, p 8000N 1-2 Soomm

2- 2. 2(300 ) 3 : 320cc 2 R.

l-3 1-2 30メ t-3 3 53-13 1-2 3 "Sin (S3, 13°):0 6.80 Lobo s 3.33 2