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physics/shear_stress.py
59 строк
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Abhishek Chakraborty
Shear stress: typo + WIkipedia URL (#7896)
31 окт 2022, 00:11
Не верифицирован
31 окт 2022, 00:11
e12516d
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from __future__ import annotations """ Shear stress is a component of stress that is coplanar to the material cross-section. It arises due to a shear force, the component of the force vector parallel to the material cross-section. https://en.wikipedia.org/wiki/Shear_stress """ def shear_stress( stress: float, tangential_force: float, area: float, ) -> tuple[str, float]: """ This function can calculate any one of the three - 1. Shear Stress 2. Tangential Force 3. Cross-sectional Area This is calculated from the other two provided values Examples - >>> shear_stress(stress=25, tangential_force=100, area=0) ('area', 4.0) >>> shear_stress(stress=0, tangential_force=1600, area=200) ('stress', 8.0) >>> shear_stress(stress=1000, tangential_force=0, area=1200) ('tangential_force', 1200000) """ if (stress, tangential_force, area).count(0) != 1: raise ValueError("You cannot supply more or less than 2 values") elif stress < 0: raise ValueError("Stress cannot be negative") elif tangential_force < 0: raise ValueError("Tangential Force cannot be negative") elif area < 0: raise ValueError("Area cannot be negative") elif stress == 0: return ( "stress", tangential_force / area, ) elif tangential_force == 0: return ( "tangential_force", stress * area, ) else: return ( "area", tangential_force / stress, ) if __name__ == "__main__": import doctest doctest.testmod()