Torque 

The Physics Zone is designed to help students learn introductory level, Algebra & Trig based, Physics. The Physics Lessons and Review are organized by topic. 

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How Force, Power, Torque and Energy Work 

If you've read many HowStuffWorks articles, you've seen a lot of terminology thrown around  words such as mass, force, torque, work, power and energy. What do these words really mean, and are they interchangeable? 

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Materials for young's modulus 

young's modulus formula for the materials are discusd in the Notes 

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Plane Strain Transform Calculator 

Given the strains at a space point in the body, this calculator computes the strains of the same space point in a rotated coordinate system. 

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Principal Stress Calculator 

Given the stress components sx, sy, and txy, this calculator computes the principal stresses s1, s2, the principal angle qp, the maximum shear stress tmax and its angle qs. It also draws an approximate Mohr's cirlce for the given stress state. 

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The Basics of Torsion Mechanics 

These equations demonstrate that if external moments are absent, then the angular impulse Jw of the rotating solid body is constant. That means that the angular velocity of the rotating solid body will also be a constant. 

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Impact Strength Testing 

Engineers and materials scientists use methods such as the Charpy VNotch (CVN) and Izod impact strength tests to
measure the amount of energy required.


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