Shell

Front 1

thin, curved plate structure, shape to transmit applied forces compressive, tensile and shear stresses acting in the plane of the surface

Back 1

shell

Front 2

Shell structure constructed of reinforce concrete

Back 2

thin shell

Front 3

surface generated by sliding a plane curve along a straight line or over another plane curve

Back 3

Translational surface

Front 4

the compressive, tensile, and shear stresses acting in the plane of the surface of a shell structure. Shell can be sustained relatively large forces if uniformly applied . Because of its thinness however , she'll have a little bending resistance and is unsuitable for concentrated load

Back 4

Membrane stresses

Front 5

a rigid cylindrical shell structure

Back 5

barrel shell

Front 6

Surface generated by sliding straight line along a plane curve, or vice versa. Depending on the curve, a cylindrical surface maybe circular, elliptic, or parabola, because of its straight line geometry, a cylindrical service can be regarded as being either a translational or the ruled surface

Back 6

Cylindrical surface

Front 7

The surface generated by sliding a vertical parabola with downward curvature along a perpendicular parabola with downward curvature. Its horizontal section are a little while its vertical section are parabolas

Back 7

elliptical paraboloid

Front 8

The surface generated by sliding the parabola we downward curvature along a parabola with a upward curvature or by sliding a straight line segment with its end on two skew lines. It can be considered to be a both a translation of the ruled surface also called hypar

Back 8

Hyperbolic paraboloid

Front 9

surface all of whose intersection by plane are either parabolas and ellipses or parabolas in hyperbolas

Back 9

paraboloid

Front 10

Surface having an upward curvature in one direction and a downward curvature in the perpendicular direction in a saddle surface shell structure, regions of downward curvature exhibit archlike action, while regions of upward curvature behaves as a cable structure. if the edges of the surface are not supported, beams behavior may also be present so

Back 10

saddle surface

Front 11

Having opposite curvature at a given point

Back 11

anticlastic

Front 12

Surface generated by the motion of the straight line. Because of its straight line geometry, ruled surface in generally easier to form and construct an rotational and translational surface

Back 12

ruled surface

Front 13

ruled surface generated by sliding straight line who is one and on a straight line segment and the under on the flavor. Depending on the curve, conoid may be circular, elliptic, parabolic

Back 13

conoid

Front 14

Surface having finite center with certain plane section that are hyperbolas and other circles or ellipses

Back 14

Hyperboloid

Front 15

Ruled surface generated by sliding an inclined line segments on two horizontal circles. its vertical sections are hyperbolas

Back 15

one sheet hyperboloid

Front 16

Surface generated by rotating a plane curve about an axis

Back 16

rotational surface

Front 17

having similar curvature at given point

Back 17

synclastic

Front 18

Rotational surface generated by the revolution of a circular arc about a vertical axis

Back 18

spherical surface

Front 19

Rotational surface generated by the revolution of a half ellipse about the vertical axis

Back 19

Elliptical surface

Front 20

Rotational surface generated by the revolution of a parabola about the vertical axis

Back 20

Parabolic surface

Front 21

Doughnut shaped surface generated by the revolution of a circle about an exterior line lying in its plane

Back 21

torus