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CONCEITOS BÁSICOS

Conceitos Básicos de Materiais de Construção

QuestionAnswer
Tensão Nós chamamos de tensão (σ) a divisão da força pela área de contato.
Resistência Mecânica Resistência mecânica é numericamente igual a tensão máxima que o material suporta antes da ruptura.
Como os “mágicos” não se machucam ao deitarem em camas cheias de pregos pontiagudos? Não é mágica, é apenas física. Quanto mais pregos existem na cama, menos dor sente o indivíduo, pois a área de contato aumenta, e consequentemente, a tensão sob a pele diminui.
Pascal (Pa) É unidade de tensão do Sistema Internacional de Unidades.
MegaPascal (MPa) Um MegaPascal (MPa) é igual a 1 milhão de Pa. Outra unidade de tensão é o kgf/cm2.
Tensão de Cisalhamento A tensão de cisalhamento ocorre quando tentamos cortar um material. É um tipo de tensão tangencial.
Tensão de flexão A tensão de flexão ocorre, por exemplo, quando curvamos uma régua de plástico.
Created by: dav.cadastros
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