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CE 114- Chapter 1

CE 114- Chapter 1
70問 • 2年前
  • Mharvie Pailano
    • 通報

    問題一覧

  • 1

    responsible for the selection, specification and quality control of materials

    Materials Engineer

  • 2

    FACTORS THAT MATERIALS ENGINEER CONSIDER:

    Economic Factors, Mechanical Properties, Nonmechanical Properties, Production, Aesthetic Properties

  • 3

    isn’t just affected by the cost of materials.

    Economic

  • 4

    what are the economic Factors?

    Availability And Cost Of The Raw Materials, Manufacturing Cost, Transportation, Placing, Maintenance

  • 5

    availability of materials can affect the choice.

    Availability And Cost Of The Raw Materials

  • 6

    Cost considerations are crucial for staying within the budget

    Manufacturing Cost

  • 7

    The ____________ of materials to the construction site can impact project costs.

    Transportation

  • 8

    Different materials have different impacts on construction.

    Placing

  • 9

    are easier and faster to build than reinforced concrete buildings

    Steel-Frame Buildings

  • 10

    require more steps and time on site, such as building forms, placing steel and concrete, and removing forms.

    Reinforced Concrete Buildings

  • 11

    The durability of different materials is not the same.

    Maintenance

  • 12

    Manufacturing Cost Includes:

    Material Cost, Installation, Maintenance, Life Cycle Cost

  • 13

    is a key decision factor.

    Balancing Quality With Cost Efficiency

  • 14

    This affects how long the structure can last and how much it costs to maintain it.

    Maintenance

  • 15

    All materials deform in response to loads

    Mechanical Properties

  • 16

    What are the 7 mechanical properties?

    Loading Conditions, Stress-Strain Relationship, Elastic Behavior, Elastoplastic Behavior, Viscoelastic Behavior, Work And Energy, Failure And Safety

  • 17

    Under Loading conditions are the:

    Static Loads, Dynamic Loads

  • 18

    loads that don’t disturb the structure or material through vibrations or shock.

    Static Loads

  • 19

    loads that disturb the material or structures through vibrations and shocks

    Dynamic Loads

  • 20

    Dynamic Loads can be classified as:

    Periodic, Random, Transient

  • 21

    Harmonic or sinusoidal loads (repeating pattern)

    Periodic

  • 22

    never repeating loads such as earthquake loads

    Random

  • 23

    impulse load (applied over short period) such as vibrations caused by winds and trucks

    Transient

  • 24

    When a material is subjected to a load or force, it changes its shape or size.

    Stress-Strain Relationship

  • 25

    The change in shape or size

    Deformation

  • 26

    Typical uniaxial stress–strain diagrams for some engineering materials:

    Glass And Chalk, Steel, Aluminum Alloys, Concrete, Soft Rubber

  • 27

    instantaneous response (deformation) to load

    Elastic Behavior

  • 28

    does not change the arrangement of atoms within the material.

    Elastic Deformation

  • 29

    When the load is removed?

    The Atomic Bonds Return To Their Original Position

  • 30

    normal stress and normal strain of an axially loaded member

    Young's Modulus Of Elasticity

  • 31

    the property of a material to withstand compression or the elongation with respect to its length.

    Young's Modulus Of Elasticity

  • 32

    The ratio of the lateral strain

    Poisson's Ratio

  • 33

    the ratio of the transverse contraction strain to longitudinal extension strain in the direction of stretching force.

    Poisson's Ratio

  • 34

    After elastic limit

    Elastoplastic Behavior

  • 35

    increases rapidly with little change in stress

    Elastoplastic Behavior

  • 36

    behavior switches from elastic to Plastic

    Elastic Limit

  • 37

    do not undergo plastic deformation

    Brittle

  • 38

    display appreciable plastic deformation

    Ductile

  • 39

    materials exhibit both viscous and elastic responses

    Viscoelastic Behavior

  • 40

    Typical viscoelastic materials used in construction applications are?

    Asphalt And Plastic

  • 41

    have a delayed response to load application.

    Viscoelastic Materials

  • 42

    long term deformations (metal)

    Creep

  • 43

    short term deformations (amorphous materials)

    Viscous Flow

  • 44

    force in order to move or deform specimen

    Work And Energy

  • 45

    The area under the elastic portion of the curve.

    Modulus Of Resilience

  • 46

    occurs when a member or structure ceases to perform the function for which it was designed.

    Failure

  • 47

    Failure of a structure can take several modes:

    Fracture, Fatigue, General Yielding, Buckling, Excessive Deformation

  • 48

    is a common failure mode.

    Fracture

  • 49

    when the static stress reaches the strength of the material.

    Fracture

  • 50

    a failure well below the strength of the material that is cause by repeated stresses.

    Fatigue

  • 51

    This failure happens in ductile materials, and it spreads throughout the whole structure, which results in a total collapse.

    General Yielding

  • 52

    a failure of long and slender members that are subjected to axial compression.

    Buckling

  • 53

    could be defined as failure, depending on the function of the member

    Excessive Deformation

  • 54

    is defined as the ratio of the stress at failure to the allowable stress for design.

    Factor Of Safety

  • 55

    other than load response, that affect selection, use, and performance.

    Nonmechanical Properties

  • 56

    What are the Nonmechanical Properties?

    Density And Unit Weight, Thermal Expansion, Surface Characteristics

  • 57

    mass, weight, and volume relationship of materials

    Density And Unit Weight

  • 58

    is the mass per unit volume of material

    Density

  • 59

    is the weight per unit volume of material.

    Unit Weight

  • 60

    is the ratio of the mass of a substance relative to the mass of an equal volume of water at a specified temperature.

    Specific Gravity

  • 61

    all materials expand as temperature increases and contract as temperature falls.

    Thermal Expansion

  • 62

    expansion per unit length

    Coefficient Of Thermal Expansion

  • 63

    interest to civil engineers

    Surface Characteristics

  • 64

    The surface properties of materials of interest to civil engineers include

    Corrosion And Degradation

  • 65

    the ability of the material to resist abrasion and wear, and surface texture.

    Corrosion And Degradation

  • 66

    All materials wear out over time due to various factors.

    Corrosion And Degradation

  • 67

    This affects the skid resistance and safety of the pavements.

    Abrasion And Wear Resistance

  • 68

    determines the friction resistance and the skidding potential of vehicles on wet conditions.

    Surface Texture

  • 69

    depends not only on its suitability for the purpose, but also on its availability, fabrication and construction

    Production And Construction

  • 70

    The appearance of a material

    Aesthetic Characteristics

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    問題一覧

  • 1

    responsible for the selection, specification and quality control of materials

    Materials Engineer

  • 2

    FACTORS THAT MATERIALS ENGINEER CONSIDER:

    Economic Factors, Mechanical Properties, Nonmechanical Properties, Production, Aesthetic Properties

  • 3

    isn’t just affected by the cost of materials.

    Economic

  • 4

    what are the economic Factors?

    Availability And Cost Of The Raw Materials, Manufacturing Cost, Transportation, Placing, Maintenance

  • 5

    availability of materials can affect the choice.

    Availability And Cost Of The Raw Materials

  • 6

    Cost considerations are crucial for staying within the budget

    Manufacturing Cost

  • 7

    The ____________ of materials to the construction site can impact project costs.

    Transportation

  • 8

    Different materials have different impacts on construction.

    Placing

  • 9

    are easier and faster to build than reinforced concrete buildings

    Steel-Frame Buildings

  • 10

    require more steps and time on site, such as building forms, placing steel and concrete, and removing forms.

    Reinforced Concrete Buildings

  • 11

    The durability of different materials is not the same.

    Maintenance

  • 12

    Manufacturing Cost Includes:

    Material Cost, Installation, Maintenance, Life Cycle Cost

  • 13

    is a key decision factor.

    Balancing Quality With Cost Efficiency

  • 14

    This affects how long the structure can last and how much it costs to maintain it.

    Maintenance

  • 15

    All materials deform in response to loads

    Mechanical Properties

  • 16

    What are the 7 mechanical properties?

    Loading Conditions, Stress-Strain Relationship, Elastic Behavior, Elastoplastic Behavior, Viscoelastic Behavior, Work And Energy, Failure And Safety

  • 17

    Under Loading conditions are the:

    Static Loads, Dynamic Loads

  • 18

    loads that don’t disturb the structure or material through vibrations or shock.

    Static Loads

  • 19

    loads that disturb the material or structures through vibrations and shocks

    Dynamic Loads

  • 20

    Dynamic Loads can be classified as:

    Periodic, Random, Transient

  • 21

    Harmonic or sinusoidal loads (repeating pattern)

    Periodic

  • 22

    never repeating loads such as earthquake loads

    Random

  • 23

    impulse load (applied over short period) such as vibrations caused by winds and trucks

    Transient

  • 24

    When a material is subjected to a load or force, it changes its shape or size.

    Stress-Strain Relationship

  • 25

    The change in shape or size

    Deformation

  • 26

    Typical uniaxial stress–strain diagrams for some engineering materials:

    Glass And Chalk, Steel, Aluminum Alloys, Concrete, Soft Rubber

  • 27

    instantaneous response (deformation) to load

    Elastic Behavior

  • 28

    does not change the arrangement of atoms within the material.

    Elastic Deformation

  • 29

    When the load is removed?

    The Atomic Bonds Return To Their Original Position

  • 30

    normal stress and normal strain of an axially loaded member

    Young's Modulus Of Elasticity

  • 31

    the property of a material to withstand compression or the elongation with respect to its length.

    Young's Modulus Of Elasticity

  • 32

    The ratio of the lateral strain

    Poisson's Ratio

  • 33

    the ratio of the transverse contraction strain to longitudinal extension strain in the direction of stretching force.

    Poisson's Ratio

  • 34

    After elastic limit

    Elastoplastic Behavior

  • 35

    increases rapidly with little change in stress

    Elastoplastic Behavior

  • 36

    behavior switches from elastic to Plastic

    Elastic Limit

  • 37

    do not undergo plastic deformation

    Brittle

  • 38

    display appreciable plastic deformation

    Ductile

  • 39

    materials exhibit both viscous and elastic responses

    Viscoelastic Behavior

  • 40

    Typical viscoelastic materials used in construction applications are?

    Asphalt And Plastic

  • 41

    have a delayed response to load application.

    Viscoelastic Materials

  • 42

    long term deformations (metal)

    Creep

  • 43

    short term deformations (amorphous materials)

    Viscous Flow

  • 44

    force in order to move or deform specimen

    Work And Energy

  • 45

    The area under the elastic portion of the curve.

    Modulus Of Resilience

  • 46

    occurs when a member or structure ceases to perform the function for which it was designed.

    Failure

  • 47

    Failure of a structure can take several modes:

    Fracture, Fatigue, General Yielding, Buckling, Excessive Deformation

  • 48

    is a common failure mode.

    Fracture

  • 49

    when the static stress reaches the strength of the material.

    Fracture

  • 50

    a failure well below the strength of the material that is cause by repeated stresses.

    Fatigue

  • 51

    This failure happens in ductile materials, and it spreads throughout the whole structure, which results in a total collapse.

    General Yielding

  • 52

    a failure of long and slender members that are subjected to axial compression.

    Buckling

  • 53

    could be defined as failure, depending on the function of the member

    Excessive Deformation

  • 54

    is defined as the ratio of the stress at failure to the allowable stress for design.

    Factor Of Safety

  • 55

    other than load response, that affect selection, use, and performance.

    Nonmechanical Properties

  • 56

    What are the Nonmechanical Properties?

    Density And Unit Weight, Thermal Expansion, Surface Characteristics

  • 57

    mass, weight, and volume relationship of materials

    Density And Unit Weight

  • 58

    is the mass per unit volume of material

    Density

  • 59

    is the weight per unit volume of material.

    Unit Weight

  • 60

    is the ratio of the mass of a substance relative to the mass of an equal volume of water at a specified temperature.

    Specific Gravity

  • 61

    all materials expand as temperature increases and contract as temperature falls.

    Thermal Expansion

  • 62

    expansion per unit length

    Coefficient Of Thermal Expansion

  • 63

    interest to civil engineers

    Surface Characteristics

  • 64

    The surface properties of materials of interest to civil engineers include

    Corrosion And Degradation

  • 65

    the ability of the material to resist abrasion and wear, and surface texture.

    Corrosion And Degradation

  • 66

    All materials wear out over time due to various factors.

    Corrosion And Degradation

  • 67

    This affects the skid resistance and safety of the pavements.

    Abrasion And Wear Resistance

  • 68

    determines the friction resistance and the skidding potential of vehicles on wet conditions.

    Surface Texture

  • 69

    depends not only on its suitability for the purpose, but also on its availability, fabrication and construction

    Production And Construction

  • 70

    The appearance of a material

    Aesthetic Characteristics