Imagine how a rubber band works and you will know how an elastic band works. It costs more than polyester elastic and similar synthetic blends. The macroscopic elastic moduli for all the models were approximately the same as for the curves obtained below ε = 0.2%; the crack initiation and propagation changed their global response. Shop with confidence on eBay! Elastic goods are those goods the demand for which changes with the change in price of that good, so if a manufacturing company increase the price for that good then its demand will fall and if it reduces the price of that good then demand will increase. Thanks, How to download pdf file Ans: b 26. Home / Mechanical Engineering / Strength Of Materials / Question. Plastic. Is Polyamide Stretchy? Answer Save. Stretch fabric 4: Knits- most knits stretch 2 ways with some exceptions that allow it to go 4 ways. 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 (>. Fake leather and vinyl combine with spandex for belts and home furnishings, etc. The higher the limit at which the material begins to flow the harder the material is. Comment * Related Questions on Strength of Materials. Young’s modulus for steel- 200 GPa His invention started with elastic closures for gloves as well as elastic for shoes, suspenders and socks. Steel Rubber. Which of the following materials is most elastic . In fact, the stretchy quality of latex and rubber is very desired for some articles of clothing. Answer: Option C . In other terms, it relates the stresses and the strains in the material. In crystalline materials, elastic strain is small, usually less than ½%. The stretch reach of the elastic fabric can go in two ways. Relevance. Like cotton, elastic has a long history. On top of that elastic fabrics or yarns can help create some wonderful jewelry pieces for those people who like innovation and creativity. In physics and materials science, elasticity is the ability of a body to resist a distorting influence and to return to its original size and shape when that influence or force is removed. Glass. The American Indian used rubber long before Columbus appeared. Q1. Hooke’s law states that: This type of material is very popular, especially when you are looking for an everyday carry wallet or a minimalist wallet. Lv 5. Which of the following materials is most elastic: A. Normally it returns the clothes to their normal shape. But if you sew the fabric before pre-washing, you run the risk of shrinking it and ruining it for future use. When you want real durability, you turn to this fabric to get your sewing project done. A wide variety of most elastic material options are available to you, such as elastic, sustainable. What is the most elastic material? Rubber It is safe for most materials other than rubber to assume that the amount of deformation is proportional to the stress. It gives you the names of those fabrics and what makes them tick. rubber band. strong / weak. The hyperelastic material is a special case of a Cauchy elastic material. Its elasticity comes from the elastine compound inside its construction. Answer: Option D . It's a stretch to keep you from being uncomfortable. Young’s modulus for rubber – 1 MPa Comment * Comments ( 1) Suresh Pathakkara : 1 month ago . Cite. A wide variety of most elastic material options are available to you, such as elastic, sustainable. Cotton and polyester are just two of those blends. At room temperature, most metals have some elasticity, which manifests itself as soon as the slightest stress is applied. The elasticity of these fabrics is a result of the yarns of which they are made of. It is also found in belts, suspenders, waistbands, and a lot more clothing articles. read more. Depending on the style of polyester elastic, you can get between 110% to 125% stretch out of it. This led to his being the first to make waterproof clothing. However, most SMHs as actuators have low elastic moduli and/or weak reversible bonds, which are intrinsically insufficient for desirable large energy storage and high work output, so most SMHs can only recover moderate bending, folding, and twisting deformations (23, 24). Ans: d 25. View Answer. Lv 7. Which of the following materials is most elastic? Lightinthebox is the best online shop for all products from home appliance to makeup. Elastic materials will return to the exact same shape and volume after being deformed. 7.8 and 7.9. It is widely used for gloves and condoms. A. Elastic fabric 3: Spandex - this elastic material can expand to 300 to 400 percent of its original size. (The material you can stretch the most and furthest without breaking it) Answer Save. Stretch denim makes jeans, etc. D. Rubber. Examveda . At this point, it may be too stretched to function like it is supposed to. The elastic limit depends markedly on the type of solid considered; for example, a steel bar or wire can be extended elastically only about 1 percent of its original length, while for strips of certain rubberlike materials, elastic extensions of up to 1,000 percent can be achieved. This fabric has a lot of uses but its specialty is in marine and outdoor areas of life. Viscoelastic materials are used for isolating vibration, dampening noise, and absorbing shock. 2 Answers. All products are offered at wholesale discount prices and shipping the whole world. Plastic. It is so strong, it is used for tough activities like boating and other outdoor activities. The most common example of this kind of material is rubber, whose stress - strain relationship can be defined as non-linearly elastic, isotropic , incompressible and generally independent of strain rate . A. This same process works for waistband elastic as well. Braided elastic has a long lifespan normally. Uploaded By hamidmasood7. This is a very popular fabric for 2 reasons. The only elastic compound that is not comfortable in clothing is rubber. Elastic material implies that the material elongates on application of force and it comes back to its original state on removal of force, like rubber. Elasticity and stretchiness are two different things, clear your mind. Then use a hot iron to apply the heat. Xaosin. B. Elastic fabric is a combination of materials that have elastic characteristics as well as flexible natures. It is most obvious for the homogenized material (Model I) demonstrating … The problem considered here is that of identifying the type of elastic material symmetry of a material, given the values of the components of the fourth-rank elasticity tensor of the material relative to a known, but arbitrary, coordinate system. Modulus of elasticity is an important design factor for metals for calculations of elastic deflections. Among materials with identical elastic limits, the most elastic is the one with the lowest elastic modulus. Plasticine and playdough are plastic for all forces. The SI unit applied to elasticity is the pascal (Pa), which is used to measure the modulus of deformation and elastic limit. ABS is a low-cost material, great for printing tough and durable parts that can withstand high … It is machine washable, yet it does not float. Also, it is good for curtains, bedspreads, comforters, table cloths, and more uses. Rayon and spandex provide a silk-like look when combined together. Plastic. Those materials are weaved together where the elastic characteristic does the most good and is not impeded in its purpose. Also, it is used in most wash and wear clothing lines. Use the tags below to quickly sort the materials based on their characteristics, or view our extensive Filament Properties Table for a detailed side-by-side comparison. Elastic fabric 3: Spandex- this elastic material can expand to 300 to 400 percent of its original size. Answer Save. Most elastic material is Ask for details ; Follow Report by Krishnamodiboyina 24.08.2019 Log in to add a comment What do you need to know? There are a lot of spandex blends available that are not mentioned in this list. It is the most versatile and the least expensive. When elastic is combined with polyester or other thread types, it is usually at the center of the construction and its duties are restricted to bringing the clothing item back to its original shape. A linear elastic material is a mathematical model used to analyze the deformation of solid bodies. Young’s modulus for sponge – 2–4 GPa With this capability stretchable materials are wanted especially when young kids are in the house. Admin can you describe how steel is elastic, in my view it is most hard among the above mentioned elements, rubber is the most elastic substance because of cross linking between polymer chains. Elastic materials are show's one characteristic, that is it's regain original position after removal of applied force. Those two elements are always very attractive. Anita. Soft materials on the other hand are easier to deform. This can be either lengthwise or crosswise. Below are the materials I have seen which have some or lots of stretch. It was Charles Macintosh who found that coal tar naphtha was capable of dissolving Indian rubber. Those materials are weaved together where the elastic characteristic does the most good and is not impeded in its purpose. 0 0. Their word for the material translates into weeping tree. 3.8 x 106 kg/cm2. Quartz is a hard brittle material in solid form. A stiffer material will have a higher elastic modulus. As it heats stretch it out, then let the elastic cool. Substances that display a high degree of elasticity are termed "elastic." When the load increases from zero, the resulting stress is in direct proportion to strain in the way given by Equation 12.4.4 , but only when stress does not exceed some limiting value. Nylon goes well with spandex and this blend is usually found in swimwear, sports bras, cycling shorts, and other activewear clothing. A. 1,029 most elastic material products are offered for sale by suppliers on Alibaba.com, of which webbing accounts for 1%, fitness safety accounts for 1%, and other sports safety accounts for 1%. Solid objects will deform when adequate loads are applied to them; if the material is elastic, the object will return to its initial shape and size after removal. Pages 19. The chemicals in the dry cleaning process can damage or ruin the fabric. (=stress/strain). Rubber gives more change to its orignal state under the external force.in elastic limit, Your email address will not be published. Discussion in 'Meta Battledome' started by Xaosin, Jul 12, 2011. share | cite | improve this question | follow | asked Sep 7 '16 at 3:18. This style is heat resistant and has a lot of stretch to it. Flexible 80A Resin is the most stiff soft-touch material in our library of Flexible and Elastic Resins, with an 80A Shore durometer to simulate the flexibility of rubber or TPU. There are three types of moduli: Elastic Modulus (Young's Modulus) - the ratio of longitudinal stress to strain Not necessarily a ball, a band could do too. It should feel good against your body when you have it on. Hemline H630.25 White Polyester Very Resilient Non-roll Woven Elastic 25mm X 1m £2.99 New Hemline Elastic Flat Woven General Non Roll Ribbed Black White All Sizes & Types Bands of rubber, latex, and other stretchy materials are woven together to make a very stretchable fabric. elastic material the number of independent stiffnesses is two. The reason for this fact is that the elastic material would help the wallet to have the slimmest and most compact size. A lap joint is always in _____ shear. This assumption is the basis of the following treatment. Knit elastic is soft and comfortable while cord elastic is used for jewelry and clothing that does not stretch a lot. You have a lot of ways to get the material clean. Comment * Comments ( 1) Suresh Pathakkara : 1 month ago . The most popular yarn is spandex , then there is a rubber core yarn, and there are specially made stretchy yarns made of polyester, nylon and natural fibers. But the good news is that melting point isn’t reach till the temperature hits 450 degrees F. melting may not be a concern but long exposure to the sun will have this fabric weakening and losing its strength. Modulus of Elasticity – is a measure of stiffness of an elastic material. SINTEF documented tensile strength makes NORSelast® one of the worlds strongest elastic materials. This can be a very expensive fabric to use. Once they get stretched the remain out of shape and are ruined. The second way elastic stretches is 4 way. 2 Answers. When you are done you probably will know about elastic fabrics than you wanted to know. Join The Discussion. Quartz is a hard brittle material in solid form. 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… For typical metals, modulus of elasticity is in the range between 45 GPa (6.5 x 10 6 psi) to 407 GPa (59 x 10 6 psi). Save my name, email, and website in this browser for the next time I comment. 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. The term “elastic” implies that once a deforming force has been removed the material will return to its original configuration. B. The SI unit applied to elasticity is the pascal (Pa), which is used to measure the modulus of deformation and elastic limit. Common questions about elastic material: Is a linear elastic model enough? Steel is much stronger than rubber, however, because the tensile force required to effect the maximum elastic extension in rubber is less … A stiffer material has a higher elastic modulus. According to the inventor of this kind of fiber, it's the best available torsion spring (and his other accomplishments seem to … The physical reasons for elastic be The way to weaken elastic is to stretch it far beyond its stretching ability. Double. In general… if you have doubts, most likely no! take a golf ball apart. Elastic material implies that the material elongates on application of force and it comes back to its original state on removal of force, like rubber. Polyester Elastic. Elastic is made from rubber and latex that have other flexible materials wrapped around it. The cost is why you have to be careful about how you use it. Spandex is an example of a synthetic fabric that is extremely stretchable. Which of the following materials is most elastic? Most materials, however, can undergo much less elastic deformation than rubber. The most popular yarn is spandex, then there is a rubber core yarn, and there are specially made stretchy yarns made of polyester, nylon and natural fibers. Most elastic material? Purely elastic materials do not dissipate energy (heat) when a load is applied, then removed; however, a viscoelastic substance does. Buy nylon elastic here >>. This stretching ability makes it a popular fabric to use in making clothes. After cleaning it drapes well and does not lose its ability to absorb moisture. The elastic can come in a variety of forms from spandex, to latex to neoprene but all those forms add up to very comfortable clothing. My question is what is quartz fibre and what makes it the most elastic material? Plz check the definition of elasticity. Favourite answer. C. Glass Not only does it help their longevity, but your clothes can also retain their shape for a long time to come. 3 Answers. A material with a higher Young’s modulus is more elastic. Cotton elastic is very absorbent, and it is very soft. Plastic B. For many materials, linear elastic models do not accurately describe the observed material behaviour. Is Polyester Vegan? The elastic really can’t perform like it could when it was its original size. Elasticity determines the ability of a material to adopt its original form after removing the force which changed its shape. The way to stretch elastic past that point of no return is to stretch it out over an ironing board. Then there is the satin and velvet blend and both of these styles help you make very nice looking clothing articles. Hooke attempted to write a simple rule that describes the behaviour of all materials subjected to a tensile force. Flexible 80A Resin is the most stiff soft-touch material in our library of Flexible and Elastic Resins, with an 80A Shore durometer to simulate the flexibility of rubber or TPU. You will find elastic material in a variety of women’s intimate apparel like girdles. Single. Not only does it resist heat, it can stretch to 3 or 4 times its size. A tensile elongation of 600% and good memory in combination with high tensile strength makes NORSelast® an excellent material in components that will be exposed to extreme strain. Elastic fabrics are also used on bed skirting, fitted sheets, bed ruffles, and just about anywhere that requires you to have flexible fabric. C. Brass. Also, you can stretch the fabric sideways or along the selvedges. Required fields are marked *. Question is ⇒ Which of the following materials is most elastic, Options are ⇒ (A) rubber, (B) plastic, (C) brass, (D) steel, (E) glass., Leave your comments or Download question paper. Previous question Next question. Also, there is swimwear elastic. Once the material goes beyond that point of no return it is too weak to be of any elastic good. Young’smodulus for glass – 50–90 GPa There are a lot of choices in this category. (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. The waterproof or resistant attributes of rubber and latex is also a popular characteristic that makes it an essential part of some clothing items. Balloons are made from an elastic material called rubber, which allows the balloon to stretch when you fill it with air. You really do not want to dry clean rubber clothes either. 3 Recommendations. Balancing softness with strength, Flexible 80A Resin can withstand bending, flexing, and compression, even through repeated cycles. hard / soft. 24. In tension or compression tests of isotropic materials a test specimen is subjected to uniaxial stress σand experiences the strains εin direction of the stress and ε t in any transverse direction, i.e. Most materials are elastic for a certain range of forces, up to the elastic limit, beyond which they are plastic. Plus, it resists mildew and bleach. Are offered at wholesale discount prices and shipping the whole world 'Meta Battledome ' started Xaosin... 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Elastic. abs is a result of the following is the most good and is not cold.. An important design factor for metals for calculations of elastic is made from elastic! Stretch when you have it on make very nice looking clothing articles vines to create an early form elastic... Here > > how elastic fabric types just continue to read our article | this. Is why it is useful to compute the relation between the forces applied on the other hand are easier deform! Most metals have some or lots of stretch available at great prices for values!
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