(a) John has completed various tests in the lab and determined the principal stresses at a specific point of a concrete roof slab. John from his tests found the following stresses for the principal planes. Ox = -20 MPa Txy = -6 MPa Oy = +10 MPa Tyx = 6 MPa Do you think that John has done all his calculations correct? Please explain. (Maximum half of a page please). (6)

(a) John has completed various tests in the lab and determined the principal stresses at a specific point of a concrete roof slab. John from his tests found the following stresses for the principal planes. Ox = -20 MPa Txy = -6 MPa Oy = +10 MPa Tyx = 6 MPa Do you think that John has done all his calculations correct? Please explain. (Maximum half of a page please). (6)

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter1: Introduction

Section: Chapter Questions

Problem 1.5.6P: The data in Table 1.5.3 were obtained from a tensile test of a metal specimen with a rectangular...

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Question

I need solution within 30 minutes please

(a) John has completed various tests in the lab and determined the principal stresses at a specific
point of a concrete roof slab. John from his tests found the following stresses for the principal
planes.
Ox = -20 MPa
Txy = -6 MPa
Oy = +10 MPa
Tyx = 6 MPa
Do you think that John has done all his calculations correct? Please explain. (Maximum half of a
page please). (6)

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