Đang chuẩn bị nút TẢI XUỐNG, xin hãy chờ
Tải xuống
Tham khảo tài liệu 'mechanics 1 of materials hibbeler 6th episode 3 part 9', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 14-34 The A-36 steel bars are pin connected at c and D. If they each have the same rectangular cross section with a height of 200 mm and a width of 100 mm determine the ver tical displacement at B. Neglect the axial load in the bars. j ỉữâr-i X Internal strain energy ỊLM2 dx 1 2 m__ 2 0.3333 TO6 Ui J. TTTTT 500x dx 0 2EỈ 2Ero El External work U ipAg Ị 500 As 250Ab Conservation of energy U Ui 250Ab 333 10 El An 133333 _1333.33 8 El 200 109 i- 0.1 0.23 0.1 10 3 m 0.100 mm Ans From Mechanics of Materials Sixth Edition by R. c. Hibbeler ISBN 0-13-191345-X. 2005 R. c. Hibbeler. Published by Pearson Prentice Hall Pearson Education Inc. Upper Saddle River NJ. All rights reserved. This material is protected under all copyright laws as they currently exist. No portion of this material may be reproduced in any form or by any means without permission in writing from the publisher. 14-35 The A-36 steel bars are pin connected at B and c. If they each have a diameter of 30 mm determine the slope at E. 300Nm 4 -1 IXL 3X1 u D . 3 m 2 m 4 2 m I 3 m Ui 2 tU 3 75x 2dx 2 L2 75 2 2dX2 Jo 2EI 2EỈJ0 2EI0 65625 El U ỡ 3OO 0 15O0 Conservation of energy V u. 65625 150Ỡ El 0 4ỊỊj . 73 5 T.-1T- 0.0550 rad 3.15 Ans El 200 109 f 0.0154 From Mechanics of Materials Sixth Edition by R. c. Hibbeler ISBN 0-13-191345-X. 2005 R. c. Hibbeler. Published by Pearson Prentice Hall Pearson Education Inc. Upper Saddle River NJ. All rights reserved. This material is protected under all copyright laws as they currently exist. No portion of this material may be reproduced in any form or by any means without permission in writing from the publisher. 14-36. The rod has a circular cross section with a moment of inertia I. If a vertical force p is applied at A determine the vertical displacement at this point. Only consider the strain energy due to bending. The modulus of elasticity is E. Moment function P r 1-cos Ớ - Af 0 M Pr l-cos Ớ Bending strain energy Ui I . _ . ds rd6 o 2EI re M1 2 rd6 Jo 2E1
