Wolfram|Alpha has stress and strain calculators. Solve problems related to Mohr's circle plane normal strain in x‐ or y‐direction, Mohr's circle plane normal stress in x‐or y‐direction, Mohr's circle plane shear strain or shear stress, the Mohr–Coulomb failure criterion, principal stresses, mechanical stress for a cylinder, engineering strain, mechanical stresses on a thin‐walled hoop, mechanical stress and maximum shear stress in a spring.
