
Tenacidade na fratura
Authored by Julio Cesar Dutra
Education
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula para a intensidade de tensão K, de acordo com Griffith?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O que deve haver no nível atômico para que a fratura ocorra, segundo o texto?
Um aumento de temperatura.
Um mecanismo de transformação de energia.
Uma diminuição de pressão.
Uma mudança de fase.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a característica do vidro de acordo com a teoria de Orowan?
Tenaz
Frágil
Dúctil
Rígido
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a característica dos metais de acordo com a teoria deOrowan?
Frágil
Rígido
Tenaz
Quebradiço
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual é a fórmula que relaciona a tenacidade na fratura com o fator de forma, a tensão e o comprimento da trinca?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quais são os modos de fratura conhecidos?
Tração, compressão e cisalhamento
Tração, cisalhamento e rasgamento
Compressão, cisalhamento e rasgamento
Tração, compressão e rasgamento
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fator de forma
Tensão
Comprimento da trinca na superfície
Tenacidade na fratura
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