1 Flashcards
The stress at failure
RUPTURE STRENGTH
The highest ordinate in a stress-strain diagram
ULTIMATE STRENGTH
The material will have an appreciable elongation or yielding without corresponding increase in load
YIELD STRENGTH
A material condition that causes it to deform permanently even due to slight increase of stress
YIELDING
Fracture caused when a material is subjected to repeated cycles of stress or strain
FATIGUE
When a material is loaded over a long period, it causes it to deform continuously until fracture
CREEP
A property of a material that describes its ability to deform under tensile stress without fracturing
DUCTILITY
Refers to the ability of a material to absorb energy without fracturing
TOUGHNESS
Refers to a substance or material that has uniform composition and properties throughout its structure
HOMOGENEOUS MATERIAL
A property of a material that describes its ability to absorb and store elastic energy when deformed and then release that energy upon unloading
RESILIENCE
A fundamental property of a material that describes its ability to deform under applied stress and return to its original shape and size when the stress is removed
ELASTICITY
Refers to the ability of a material to resist deformation when subjected to an applied load or force.
STIFFNESS
The measure of the material’s rigidity or resistance to bending, stretching, or compressing
STIFFNESS
The ability of a material to undergo large permanent deformation in compression
MALLEABILITY
A property of a material which enables a material to be beaten or rolled into thin sheets
MALLEABILITY
A substance or material that exhibits the same physical properties in all directions.
ISOTROPIC MATERIAL
A substance or material that exhibits different physical properties or behaviors in different directions
ANISOTROPIC
A material that exhibits distinct properties in different directions; A material that possesses different strengths, stiffnesses, and thermal expansion coefficients in different directions
ORTHOTROPIC MATERIAL
The proportionality of stress and strain or the slope of the stress-strain diagram within the elastic range of the material
YOUNG’S MODULUS
The property that measures the energy-absorbing capacity of a material under elastic deformation.
MODULUS OF RESILIENCE
It is defined as the maximum amount of energy per unit volume that a material can absorb without permanent deformation or failure
MODULUS OF RESILIENCE
A phenomenon that occurs in certain materials when they are subjected to plastic deformation
STRAIN HARDENING
Refers to the increase in hardness and strength of material as a result of plastic deformation, while also decreasing its ductility
STRAIN HARDENING
Refers to the region in which it exhibits linear elastic behavior
ELASTIC REGION
Refers to the stress level at which the material begins to exhibit significant plastic deformation or permanent strain under an applied load
YIELD POINT
Critical point that marks the transition from the elastic deformation region to plastic deformation
YIELD POINT
Refers to the stress or load that a material can withstand before it breaks or rupture
RUPTURE STRENGTH
The maximum stress or load that a material can withstand before it breaks of fail; the highest point on the stress-strain curve of the material during a tensile test
ULTIMATE STRENGTH
The greatest stress that one can still see a linear relation between stress and strain
PROPORTIONAL LIMIT
The ratio of lateral strain to longitudinal strain; The typical range for this quantity is between 0 to 0.5
POISSON’S RATIO
Refers to the lateral dispacement of one level relative to the level above or below
STOREY DRIFT
Occurs when the structure’s center of mass does not coincide with its center of rigidity
TORSIONAL SHEAR STRESS
It occurs when the structure’s period coincides with the earthquake period.
RESONANCE
