_______________________________________________________________________ PROBLEM (8.26) A welded plate is subjected to uniform biaxial tension as shown in Fig. P8.26. Calculate the maximum stress σ for two cases: (a) The weld has an allowable shear stress of 25 MPa. (b) The weld has an allowable normal stress of 60 MPa. SOLUTION τ xy = 0 θ = 60 o σ − 40 (a) τ x ' y ' = −25 = − (b) σ x ' = 60 = 2 sin120o σ + 40 σ − 40 2 + 2 σ = 97.7 MPa cos120o σ = 120 MPa Excerpts from this work may be reproduced by instructors for distribution on a not-for-profit basis for testing or instructional purposes only to students enrolled in courses for which the textbook has been adopted. Any other reproduction or translation of this work beyond that permitted by Sections 107 or 108 of the 1976 United States Copyright Act without the permission of the copyright owner is unlawful.