Resistência à tração: diferenças entre revisões
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Linha 10:
Alguns materiais quebram, sem [[deformação plástica]], no que é chamado de [[ruptura frágil]]. Outros, que são mais [[dúctil|dúcteis]], incluindo a maioria dos metais, experimentarão alguma deformação plástica e, possivelmente, [[Estiramento (engenharia)|estiramento]] (formação de "pescoço") antes da fratura.
▲The UTS is usually found by performing a [[tensile test]] and recording the [[Stress–strain analysis#Uniaxial stress|engineering stress]] versus [[strain (engineering)|strain]]. The highest point of the [[stress–strain curve]] (see point 1 on the engineering stress/strain diagrams below) is the UTS. It is an [[intensive and extensive properties|intensive property]]; therefore its value does not depend on the size of the test specimen. However, it is dependent on other factors, such as the preparation of the specimen, the presence or otherwise of surface defects, and the temperature of the test environment and material.
Tensile strengths are rarely used in the design of [[ductile]] members, but they are important in brittle members. They are tabulated for common materials such as [[alloy]]s, [[composite material]]s, [[ceramic]]s, [[plastic]]s, and [[wood]].
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