Traditional Culture Encyclopedia - Traditional stories - The fourth strength theory verifies the strength formula.
The fourth strength theory verifies the strength formula.
Md=( 1-2), mq=( 1-3). The fourth strength theory, also known as distortion energy theory (shape change specific energy density theory), states that the yield of materials is caused by distortion energy density, and the formulas of normal stress, shear stress and torque on composite section are md=( 1-2).
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