A shear-modulus scan varies shear stress and sideways strain together across three rows, checking that the quotient G = tau / gamma stays constant row by row. The arithmetic is exact only for the stated shear stresses, shear strains, and modulus in the ideal linear-elastic model. Real materials add nonlinearity, hysteresis, geometry tolerances, temperature effects, load-cell/length calibration, finite precision, and measurement uncertainty.
Shear modulus divides shear stress by sideways strain. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
Shear modulus divides shear stress by sideways strain
Shear stress 2 Pa and sideways strain 1 over 3 give shear modulus 6 Pa.
G=γτ=312Pa=6Pa
Shear modulus divides shear stress by sideways strain
Shear stress 2 Pa and sideways strain 1 over 3 give shear modulus 6 Pa.
G=γτ=312Pa=6Pa
Shear modulus divides shear stress by sideways strain
Shear stress 3 Pa and sideways strain 1 over 2 give shear modulus 6 Pa.