Materials vocabulary Flashcards
brittle
fractures without significant plastic deformation
ductile
able to be hammered thin or stretched into wires without breaking
hard
resistant to scratching
strong
can handle a large amount of stress without breaking
elastic
returns to original shape after force is removed
plastic
has a permanent change in shape
tough
able to absorb energy and plastically deform without fracturing
polymetric
composed of many monomers linked together to form chains
Ultimate tensile strength
maximum stress that a material can withstand while being stretched or pulled before breaking
tensile stress
force applied per unit cross sectional area (F/a)
tensile strain
fractional change in the original length (x/L)
Young Modulus
stress/strain