Engineering Materials Coursework Example | Topics and Well Written Essays - 750 words

Engineering Materials - Coursework ExampleIn addition, glass is very resembling to a slowly moving liquid so that old pieces of glass seem thicker at the backside than at the top. In order to increase the tensile strength of the glass, the molecules must keep very fast(a) hold with one another. Surface finishing and ion-exchange atomic number 18 two chemical processes that are utilise to tone glass heartys (Chemically strengthened glass, 2011). Q3. The Giffiths theory reflects the relationship between crack length at transformation and applied nominal stress. It is a comprehensive equation that can be effectively employed for design purposes. Giffiths theory says that steel is a safer engineering material than glass. It is experimentally proved that the stress call for to fracture a glass is nearly 100 MPa. It indicates that comparatively a smaller stress is nice to fracture a glass and therefore, this material is not advisable for engineering purposes. In contrast, since a higher(prenominal) stress is required to fracture a steel material, it can strengthen buildings and other engineering constructions (Simple Stress). In short, steel is a very stronger material as compared to glass substances. Civil engineers would suggest stronger and durable components for their projects since they are built for a long time.Q4. A metal or any other structural material lead undergo a change in its shape when a sufficient load is applied to it and this change in shape is called deformation. Elastic deformation is a process by which a impermanent shape change. takes place and the material comes to its original shape when the applied force is removed. Plastic deformation will be akin between the elastic limit and ultimate tensile strength (UTS). It means uniform plastic deformation is applicable only between certain limits and it will be non-uniform once the UTS is exceeded. It is simulated that the interface between a larger hole and a smaller hole has a ingest impact on local plastic deformation. The interconnection between the array angle of larger holes and the training of the shear band can greatly influence local plastic deformation (SAO/ NASA ADS physics gazump service). Q5. pencil eraser snap fastener involves flexible molecular chains which need to be interconnected to prevent gliding. (Francois, Pineau, and Zaoui, 1998, p.67). Rubber elasticity necessitates a high temperature in order to ensure the adequate mobility of the molecular chains. Rubber elasticitys entropic nature can be attributed to the large number of possible configurations for the molecular chains. As discussed earlier, good-for-nothing elasticity requires high temperature and it promotes mobility of molecular chains. This feature is one the main causes for rubber elasticity to low secureness and high tension. Q6. The combination of thermosetting resin and glass fibers produces composite materials which are tough even though both the primary elements are brit tle. It is necessary to note that transfer of stress between reinforcing fibers and acting as a glue to hold the fibers together are