Doğuş Cendek 030060101 12th Week

Junction Growth (28.04 16:05)

Although the nature of the contact , whether it is elastic or plastic,does not affect the true area of contact under the action of a normal load,it may give rise to variations in behaviour when a load is applied which is to the tangetial interface.
(Cherry B.W.,Polymer Surface,p.110)

Stick Slip (28.04 16.10)

The phenemenon of stick slip occurs if there is an intermittent change between static and kinematic friction.It becomes possible,if the dynamical proporties of the ragarded system like elasticity,mass distrubition and damping allow this kind of motion.
(Ulbrich H.,Günthner W., IUTAM symposium on vibration control of nonlinear mechanism and structure,p.223)

Mitering (28.04 16:27)

Figure 1

To miter each corner,lap one border strip over the other.(Figure 1) Align the edge of a right triangle with the raw edge of the top strip so the triangle's long edge intersects the border seam in the corner.Draw along the triangle edge from the seam out the raw edge.Place the bottom border unit on top and repeat the marking process.With right sides together match the marked seam lines and pins.(Figure 2) Begin at the inside corner and sew the strips together,stitching exactly on marked lines.Check the right side to see that the corner lies flat.
(Meredith Corp.,123 Quilt,p.15)

Figure 2


Pinching (28.04 17:15)

Pinching is a useful method of buildings form in clay on any scale and it is frequently used in the studio or classroom as a first experience in clay.Objects both hollow and solid can be made by pinching solid if the cross-section is less than 5cm thick or thicker.If you can fire very slowly as in brick.
(Peterson J.,Peterson S.,The craft and art of clay,p.32)