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Concept
Torque is a measure of the rotational force applied to an object, which causes it to rotate around an axis or pivot point. It is calculated as the product of the force applied and the distance from the point of rotation, with the direction of the torque determined by the right-hand rule.
Shear stress is a measure of how a force is distributed parallel to a surface, causing layers of a material to slide against each other. It plays a crucial role in determining the structural integrity and deformation behavior of materials under load, influencing fields such as fluid dynamics, material science, and civil engineering.
Concept
Elasticity measures the responsiveness of one variable to changes in another variable, often used in economics to assess how quantity demanded or supplied responds to price changes. It provides insights into consumer behavior, market dynamics, and helps in making pricing and policy decisions.
The modulus of rigidity, also known as shear modulus, quantifies a material's resistance to deformation under shear stress. It is a fundamental property that describes how a material's shape changes when subjected to forces parallel to its surface, crucial for understanding material behavior in engineering and physics.
Fracture mechanics is the field of mechanics concerned with the study of the propagation of cracks in materials. It uses analytical and empirical techniques to predict the conditions under which materials will fail due to crack growth, thereby helping in the design of more resilient structures and components.
Material fatigue is the progressive and localized structural damage that occurs when a material is subjected to cyclic loading, leading to the eventual formation of cracks and failure. It is a critical consideration in engineering and design, as it can cause sudden and catastrophic failures in structures and components that appear to be well within their static load limits.
Plastic deformation is the permanent change in shape or size of a material under stress, beyond its elastic limit, where it does not return to its original form upon removal of the force. It is a critical consideration in material science and engineering, affecting the durability and performance of materials under load.
Stress concentration refers to the localization of stress around discontinuities or irregularities in a material, such as holes, notches, or sharp corners, leading to potential failure points. Understanding and mitigating Stress concentration is crucial in engineering design to ensure structural integrity and prolong the lifespan of components.
The twisting angle is a measure of how far a structural element, like a shaft or a beam, rotates around its longitudinal axis under the application of torque. It is crucial in engineering and materials science to ensure components can withstand applied loads without excessive deformation, which could lead to failure.
Mechanical properties are the characteristics of materials that reveal their behavior under various forms of force and load, crucial for determining their suitability in different applications. These properties include elasticity, plasticity, toughness, and hardness, which collectively influence a material's performance in mechanical systems.
Torsional loads refer to the forces acting on an object that cause it to twist about its longitudinal axis. Understanding these loads is crucial in the design of shafts and other rotating elements to ensure they can withstand the applied stresses and prevent mechanical failure.
Fastener strength refers to the capacity of a fastening device, such as a bolt or screw, to withstand loads or forces without failing. Key factors affecting fastener strength include the material, design, and size of the fastener, as well as the nature of the forces acting on it, such as shear, tensile, or torsion loads.
A splined joint is a mechanical component designed to transfer torque between parts while allowing some degree of axial movement. It consists of a series of ridges or teeth on a shaft that fit into grooves on a mating piece, ensuring rotational synchronization and enhanced load distribution.
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