Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 258
Complete the parallelogram n^om^r^/ given inclination to each other, to com- then or2 represents the intensity and di- bine these states of stress and find the rection of the stress on yxyx. But the resultant state. principal stresses bisect the angles be- In Fig. 12 let oxx, ox2 denote the di-… … sent the position and magnitude of these Problem 20. — When any two states principal stresses. Since the given of stress, defined by their principal stresses are right shearing stresses ax = — bx, a2= — b2 and the respective stresses, act at the same point, and their planes of shear bisect the…
Engineering
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