• 2022-06-12 问题

    The ductility of a material can be specified by the specimen's or the in area.

    The ductility of a material can be specified by the specimen's or the in area.

  • 2022-06-06 问题

    How is the ductility of a metal normally affected by cold working?Why?

    How is the ductility of a metal normally affected by cold working?Why?

  • 2022-06-06 问题

    The displacement ductility of compression member will decrease with the increase of axial compression ratio.

    The displacement ductility of compression member will decrease with the increase of axial compression ratio.

  • 2022-06-07 问题

    Annealing and normalizing present a significant difference on the ductility of low carbon steels.​

    Annealing and normalizing present a significant difference on the ductility of low carbon steels.​

  • 2022-06-06 问题

    以下选项中表示“硬度”的词汇是_____。 A: hardness B: malleability C: ductility D: density

    以下选项中表示“硬度”的词汇是_____。 A: hardness B: malleability C: ductility D: density

  • 2022-06-27 问题

    金属的位错密度会被以下哪些影响? A: transmittance B: ductility C: deformation D: cold work

    金属的位错密度会被以下哪些影响? A: transmittance B: ductility C: deformation D: cold work

  • 2022-06-27 问题

    ‍金属的位错密度会被以下哪些影响? ‍ A: Transmittance B: Ductility C: Deformation D: cold work

    ‍金属的位错密度会被以下哪些影响? ‍ A: Transmittance B: Ductility C: Deformation D: cold work

  • 2022-06-07 问题

    ‍What sets ceramics apart is their set of properties common to nearly all forms.Those properties are ()‌ A: extreme hardness B: heat resistance C: corrosion resistance D: electrical and thermal conductivity E: low ductility F: brittleness

    ‍What sets ceramics apart is their set of properties common to nearly all forms.Those properties are ()‌ A: extreme hardness B: heat resistance C: corrosion resistance D: electrical and thermal conductivity E: low ductility F: brittleness

  • 2022-05-31 问题

    Generally, ductility coefficient of a structure is defined as the ratio of maximum allowable deformation and yield deformation of a member or structure when the bearing capacity of the structure is not less than ( ) of its ultimate bearing capacity. A: 70% B: 80% C: 85% D: 90%

    Generally, ductility coefficient of a structure is defined as the ratio of maximum allowable deformation and yield deformation of a member or structure when the bearing capacity of the structure is not less than ( ) of its ultimate bearing capacity. A: 70% B: 80% C: 85% D: 90%

  • 2022-06-01 问题

    ( ) is not true A: particles of a hard and stiff material added to a ductile matrix increase its ductility and stiffness B: plywood is a laminated composite C: laminated composite was used in aerospace structure D: Diameters of fiber used in composite are in the range of 1μm to 100μm.

    ( ) is not true A: particles of a hard and stiff material added to a ductile matrix increase its ductility and stiffness B: plywood is a laminated composite C: laminated composite was used in aerospace structure D: Diameters of fiber used in composite are in the range of 1μm to 100μm.

  • 1