Young's modulus $${\displaystyle E}$$, the Young modulus or the modulus of elasticity in tension, is a mechanical property that measures the tensile stiffness of a solid material. For example, "I need to calculate the diameter of a steel wire capable of holding up XXX pounds or YYY Kg." 0.4mm (which is the same as 4 x 10 to the power of -4 metres). Please reframe your question thoroughly stating what you are trying to do. Thermomechanically rolled steel utilises a particular chemistry of the steel to permit a lower rolling finish temperature of around 700°C. Greater force is required to roll the steel at these lower temperatures, and the properties are retained unless reheated above 650°C. 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For a cantilevered steel rod of 10mm diameter, the stiffness P/δ = 3*E*I/L^3 where P = tip load (N), δ = deflection (m), E = 20.3GPa, I = 4.91E-10m^4 and L = length (m) provided by you. f the load in Newtons.A is the cross-sectional area of the cable or bar and is measured in metres squared.x is the extension and is measured in metres.l is the original length and is measuredeval(ez_write_tag([[250,250],'askwillonline_com-box-4','ezslot_7',114,'0','0'])); Young Modulus is measured Newtons per metres squared. This is why k is measured in newtons/ metre as k = f / x is the same as k = Newtons / metres.k is a sample dependent. how to measure power transistor maximum power. It is defined as the ratio of the uniaxial stress over the uniaxial strain in the range of stress in which Hooke's Law holds. Shouldn’t it be called an inlet? can anyone tell me how? The joint stiffness can now be calculated as follows: S j = 210 × (533.1 – 15.6)˜ 1 2.91 + 0 + 1 6.01 ˜ ( ) = 102 ˜ MNm/radian The theory for working out tensile strength and stiffness is relatively simple to use. 200 GPa or 29,000,000 lbf/in² (psi) *Young's modulus, also known as the tensile modulus, is a measure of the stiffness of an isotropic elastic material. The stiffness of the base may be assumed to be equal to the following proportion of the column stiffness: 10% when checking frame stability or determining in – plane effective lengths. k = 67500 Nm which means it takes 67500N for the steel wire to stretch a metre. Keep in … How do I determine the temperature drop across a turbine in an Organic Rankine Cycle? 200-210gpa. The value for the equivalent stiffness is then: k eq = 2994 498 = 6.01 The remaining stiffnesses can also be calculated and the values are k 1 = 2.91 and k 2 = ∞ because of the presence of the compression stiffener. Stiffness – Force needed to cause unit change in length. Why is an electrical outlet called an outlet when you plug things into it? Using Hooke’s LawA 2.2m length of steel wire stretches 0.4mm when loaded with 27N. unlimited green power. you did the other way round. If I wanted to become an engineer as well as enjoy my life as one, which major would I pick at Uni? The reason you can't find stiffness is because it has no technical meaning. Eventhough you got the answer correct; to some people this might be a little confusing. 'Stiffness" will depend on both tensile, and compressive strengths. Stress For force, we use stress: Stress = force / cross-sectional area = f / A. 1.5K views. How deep it is required to drill to generate 100 deg C, turning water into steam for power generation ? im so confused on how to do this. eval(ez_write_tag([[336,280],'askwillonline_com-box-3','ezslot_3',111,'0','0']));In this article, I will be looking at the tensile strength, stiffness, Hooke’s law, how to use Hooke’s law, Young Modulus (E) and example questions. Author has 6K answers and 5.6M answer views. It is measured in Newtons per metre (N/m), Hooke’s law  is k = f / x. Rearrangements include f = kx and x = f / k. k is the spring constant and is measured in N/m.x is the extension and it is measured in metres.f is the force and is measured in Newtons. Stiffness is the resistance of an elastic body to deflection or deformation by an applied force - and can be expressed as k = F / δ (1) Instead of dividing the 27N with x (0.4×10^-4). All steel has approximately the same stiffness, but comes in many different strengths depending on the alloying metals used. You can sign in to vote the answer. First of all, lets make clear the 2.2m length is not relevant. Stainless steel comes in more than 100 grades which are created by adding alloys such as chromium, silicon, nickel, carbon, nitrogen, and manganese to impart properties such as heat resistance, strength, flexibility, and ductility. ? 20% when calculating deflections under serviceability loads. ? every material should have its stiffness value, but i cannot find it in my book.... *Young's modulus, also known as the tensile modulus, is a measure of the stiffness of an isotropic elastic material. NOTE: Column base plates with a thin base plate and four bolts are considered in some If the applied stress exceeds the yield strength, plastic or permanent deformation occurs, and the material can no longer return to its original shape once the load is removed. Comment*document.getElementById("comment").setAttribute( "id", "a9d600784ce27ab9ffde77ddcb366c5f" );document.getElementById("jb21408208").setAttribute( "id", "comment" ); Notify me of follow-up comments by email. After completing a Masters degree in Automotive Engineering with Motorsport, Will now works at McLaren designing super cars. It quantifies the relationship between tensile stress $${\displaystyle \sigma }$$ (force per unit area) and axial strain $${\displaystyle \varepsilon }$$ (proportional deformation) in the linear elastic region of a material and is determined using the formula: Engineering. im supposed to build a clock made out of gears and step motor. Strain For extension, we use strain: Strain = extension / orginial length = x / l. Young Modulus We can replace k with Young Modulus: E or YM = Stress / Strain = (f/A) / (x/l) = fl / Ax Join Yahoo Answers and get 100 points today. What is the total power generated in the circuit? Calculate k for this length. It is measured in Newtons (N). or... "I need to cantilever a beam 6 feet which is able to hold a 100 pound load with a deflection less than 1/8 inch.". Why do we need satellite internet access when we can access in most places anyways? Get your answers by asking now. We do not need the length of wire when using k = f / x.eval(ez_write_tag([[250,250],'askwillonline_com-medrectangle-4','ezslot_5',113,'0','0'])); Stress = force / cross-sectional area = f / A, Strain = extension / orginial length = x / l. Young ModulusWe can replace k with Young Modulus: E or YM = Stress / Strain =  (f/A) / (x/l) = fl / Ax.

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