1.7 Stress Tensor - MIT OpenCourseWare

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fluid, the stress vector must have the same direction as the normal vector n and the same magnitude for all directions of n. no summation Pascal’s Law for hydrostatics: τij = − (pi)(δij) ⎡ ⎤ −p1 0 0 τ = ⎣ 0 −p ⎦ 2 0 0 0 −p3 where pi is the pressure acting perpendicular to the ith surface. If p0 is the pressure acting

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