tailieunhanh - mechanics of materials 3rd ed by beer johnston dewolf 2011

Tham khảo sách 'mechanics of materials 3rd ed by beer johnston dewolf 2011', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | PROBLEM Two solid cylindrical rods AB and BC are welded together at B and loaded as shown. Knowing that dỵ 30 mm and d2 5 mm find the average normal stress in the mid section of a rod AB b rod BC SOLUTION 3 3 roe AB Foirce p ẻ o x ù1 Ụ ý is ữ Area- A - al Ẹ sox ô 3 - 7ũCSỔ o 4 Nơr n d s ress SAS Jr - .A - w S8 X 04 pq fl fUfo. Qtt ffj 6 8 MPa b roc Be Force p Gox O1 - XÍ01 - I9o X O3 N Area. A dj z ỈD s hi1 Ajor v a7 stress . Cffc - y - 16-T7 X OỂ Pq. Sfic - MPa. PROBLEM Two solid cylindrical rods AB and BC are welded together at B and loaded as shown. Knowing that the average normal stress must not exceed 150 MPa in either rod determine the smallest allowable values of the diameters d and dj. SOLUTION rod A8 p GOX IO3 hỉ Area A - oil4 -- T A I J L Ỉ ji y-p_ _ 4-V6OX O3 TT ISO K O d - x a 3 H s ress 6 . ISO Xia . A 504. 3 X 0 c n 2 - 33 Ố rod 8C Force p - ỂOxlO3 - o - - 1 0 xl o M s reii . - ISO IO Pa A e K- A - ỹdự A -nd2 J u i p Tĩơec x TT Q- ỈSO X o - 40. lé XỊo vn dj - .