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Mechanics 1 of materials hibbeler 6th Episode 1 Part 2

Tham khảo tài liệu 'mechanics 1 of materials hibbeler 6th episode 1 part 2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 1 51 A tension specimen having a cross-sectional area A is subjected to an axial force p. Determine the maximum average shear stress in the specimen and indicate the orientation 0 of a section on which it occurs. - EFy 0 V-Pcos0 O V Pcose Pcos 0 Pcosffsinff _ Psin 26 T A sinO A 2A dt _ Pcos20 ữớ Ã- cos 20 0 20 90 6 45 Ans Tmal -sin 90 Ans 2A 2A 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. 1-52 The joint is subjected to the axial member force of 5 kN. Determine the average normal stress acting on sections AH and BC. Assume the member is smooth and is 50 mm thick. X Fx 0 NBA cos 30 - 5 cos 45 0 Nba 4.082 kN T Ĩ.Fy 0 -Nbc-4.082 sin 30 5 sin 45 0 NflC 1.494 kN Nba Aba 4.082 103 0.04 0.05 2.04 MPa Ans _ Nbc ƠBC - Abc 1.494Í103 0.598 MPa O.O5 O.O5 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. 1-53. The joint in subjected to the axial member force of 6 kip. Determine the average normal stress acting on sections AB and BC. Assume the member is smooth and is 1.5 in. thick. T E Fr 0 6 sin 60 Nbc cos 20 0 Nbc 5.530 kip 2 I 0 Nab - 6 cos 60 - 5.530 sin 20ó 0 Nab 4.891 kip _ ffp 4-89-L - 1.63 ksi Ans Abb 1.5X2 .__Nbc 5.530 _0K1t lrri Ans a c Abc 1.5X4.5 From Mechanics of Materials Sixth Edition by R. c. Hibbeler ISBN 0-13-191345-X. 2005 R. c. Hibbeler. Published by .