Analysis of Serial Pinned Joints in Composite Materials

Pin jointed structures are more regularly used because they are simple to design, relatively inexpensive to make, easy to construct, and easy to modify. A pin joint is a solid cylinder-shaped device, similar to a bolt, which is used to connect objects at the joint area. The pin can only transmit a force and has no ability to resist rotation. They can be 'fixed' structures such as frames, or they can be structures that move, more normally referred to as mechanisms. In practice pin jointed structures often use bolts which are tightened and therefore they can resist rotation to a certain extent. This type of joint connection allows each object to rotate at the point of joint connection. Most mechanical devices that require bending or opening typically use a pin joint. These joints can be welded solid or allow movement between the two connected objects. In this thesis, analysis is done on the E Glass and S2 Glass epoxy composite plate with two serial holes by varying distance from the free edge of the plate to the diameter of the first hole and width of the specimen to the diameter of the holes and also and the distance between center of two holes-to-hole diameter. Structural and Fatigue analysis are done using Cosmos.