Elastic fabric 3: Spandex - this elastic material can expand to 300 to 400 percent of its original size. The chemicals in the dry cleaning process can damage or ruin the fabric. Q1. I'm talking the elastic equivalent adamantium. Thanks, How to download pdf file Answer: Option C . Rayon and spandex provide a silk-like look when combined together. In fact, the stretchy quality of latex and rubber is very desired for some articles of clothing. Save big on shipping and see more similar products available at great prices for amazing values. Which of the following materials is most elastic (a) rubber (b) plastic (c) brass (d) steel (e) glass. Those materials are weaved together where the elastic characteristic does the most good and is not impeded in its purpose. A. Thomas Hancock is credited with inventing elastic in about 1820. elastic material the number of independent stiffnesses is two. Once the material goes beyond that point of no return it is too weak to be of any elastic good. There are a lot of spandex blends available that are not mentioned in this list. 7.8 and 7.9. Rubber. Another way is to stretch the elastic out and keep it stretched out for a day or two. Steel is more elastic than Rubber.elasticity is measured as ratio of stress to strain. Substances that display a high degree of elasticity are termed "elastic." The phenomenon of elastic strain and plastic deformation in a material are called elasticity and plasticity, respectively. share | cite | improve this question | follow | asked Sep 7 '16 at 3:18. The value of modulus of elasticity for mild steel is of the order of (a) 2.1xl05 kg/cm2 (b) 2.1 X 106 kg/cm2 (c) 2.1 x 107 kg/cm2 (d) 0.1 xlO6 kg/cm2 (>. Viscoelastic materials, as their name suggests, combine two different properties.The term “viscous” implies that they deform slowly when exposed to an external force. 1- Natural gum 2- Spandex or lycra Butyl Rubber (GDP) 4- Fluoroelastomer 5- Elastomers 6- Ethylene-propylene rubber (EPR) 7-Resilin 8- Styrene-butadiene rubber (SBR) 9- Chloroprene 10-Elastin 11- Rubber Epichlorohydrin 12- Nylon Nylon 13- Terpene 14- Isoprene Rubber 15- Poilbutadiene 16- Nitrile Rubber 17- Vinyl stretch 18- Thermoplastic elastomer 19- Silicone rubber 20- Ethylene-propylene-diene rubber (EPDM) 21- Ethylvinylacetate (EVA or foamy gum) 22- Halogenated butyl rubbers (CIIR, BIIR) 23- Neopre… Comment * Comments ( 1) Suresh Pathakkara : 1 month ago . Rubber Natural latex is often claimed to be the most elastic material, but I haven't found any statistics to back that claim. To learn more about elastic and elastic fabric types just continue to read our article. But with the elastic additive, your clothing items can have a little bounce to them and return to their original shape. It also resists damage from chlorine, saltwater and sunscreen. According to the inventor of this kind of fiber, it's the best available torsion spring (and his other accomplishments seem to … This is especially important for load-bearing constructions. (How To Stretch Polyamide Fabric), Petite Dress Form: Finding an Adjustable Size 0 Dress Form, When Was Elastic Invented for Clothing?. Uploaded By hamidmasood7. Relevance. Sorbothane® is recognized … Discussion in 'Meta Battledome' started by Xaosin, Jul 12, 2011. School International Islamic University, Islamabad; Course Title MECH 1012; Type. Lv 7. Elastic is a great option to combine with your favorite fabrics. This stretching ability makes it a popular fabric to use in making clothes. By this definition, steel is more elastic than rubber because steel comes back to its original shape faster than rubber when the deforming forces are removed. Depending on the style of polyester elastic, you can get between 110% to 125% stretch out of it. Purely elastic materials do not dissipate energy (heat) when a load is applied, then removed; however, a viscoelastic substance does. Crystalline materials can fracture on crystal planes, metals can exhibit ductile flow, and most materials have microcracks which can pick up contaminants and create weaknesses. Modulus of elasticity is also a measure of material's stiffness or resistance to elastic deformation. (adsbygoogle = window.adsbygoogle || []).push({}); PakMcqs.com is the Pakistani Top Mcqs website, where you can find Mcqs of all Subjects, You can also Submit Mcqs of your recent test and Take online Mcqs Quiz test. SINTEF documented tensile strength makes NORSelast® one of the worlds strongest elastic materials. Join The Discussion. For many materials, linear elastic models do not accurately describe the observed material behaviour. Elasticity is a physical property of a material whereby the material returns to its original shape after having been stretched out or altered by force. 1 decade ago. Plastic. Soft materials on the other hand are easier to deform. Elastic fabric is a combination of materials that have elastic characteristics as well as flexible natures. The use of elastic is innumerable as so many clothing items can benefit from the added elastic in their construction. Stretch denim makes jeans, etc. The former works well with maternity clothes and the latter for expanding waistlines. I need to make a ball which needs to bounce rather a lot. MissKittyInTheCity. The cost is why you have to be careful about how you use it. Steel having the most steep linear stress-strain curve among all. In crystalline materials, elastic strain is small, usually less than ½%. 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