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Capítulo 12

Equilíbrio e Elasticidade

Equilíbrio Estático - I
Equilíbrio Estático - I
A rigid body is said to be in dynamic equilibrium when both its linear and angular acceleration are zero, relative to an inertial frame of reference. This ...
Equilíbrio Estático - II
Equilíbrio Estático - II
Static equilibrium is a special case in mechanics that is very important in everyday life. It occurs when the net force and the net torque on an object or ...
Centro de Gravidade
Centro de Gravidade
The center of gravity (COG) of an object is the point where the object's total weight is considered to be concentrated. Knowing the location of the ...
Encontrando o Centro de Gravidade
Encontrando o Centro de Gravidade
The center of gravity of a body is an imaginary point where the body's total weight is assumed to be concentrated, and the body is perfectly balanced. ...
Problemas de Equilíbrio de Corpos Rígidos - I
Problemas de Equilíbrio de Corpos Rígidos - I
A rigid body is said to be in static equilibrium when the net force and the net torque acting on the system is equal to zero. To solve for rigid body ...
Problemas de Equilíbrio de Corpos Rígidos - II
Problemas de Equilíbrio de Corpos Rígidos - II
A rigid body is in static equilibrium when the net force and the net torque acting on the system are equal to zero. Consider two children sitting on a ...
Tensão
Tensão
When a force is applied on a body, it undergoes deformation. In order to restore the body to its original shape and/or size, an opposite or restoring ...
Deformação e Módulo de Elasticidade
Deformação e Módulo de Elasticidade
The quantity that describes the deformation of a body under stress is known as strain. Strain is given as a fractional change in either length, volume, or ...
Resolução de problemas de tensão e deformação
Resolução de problemas de tensão e deformação
Stress is a quantity that describes the magnitude of a force that causes deformation, generally defined as internal force per unit area. When forces pull ...
Estrutura Indeterminada
Estrutura Indeterminada
Indeterminate structures refer to structures where internal forces and reactions cannot be determined using only the equations of static ...
Elasticidade
Elasticidade
Elasticity is the ability of an object to withstand the effects of distortion and to return to its original size and shape once the forces causing ...
Plasticidade
Plasticidade
Plasticity is the property where an object loses its elasticity and undergoes irreversible deformation, even after the deformation forces are eliminated. ...
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