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Topic: Youngs modulus

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	Elastic modulus - Wikipedia, the free encyclopedia
		An elastic modulus, or modulus of elasticity, is the mathematical description of an object or substance's tendency to be deformed when a force is applied to it.
		Young's modulus is a mathematical consequence of the Pauli exclusion principle.
		The shear modulus or modulus of rigidity (
	en.wikipedia.org /wiki/Modulus_of_elasticity (369 words)

	Rubbers and Elastomers - An Introduction
		Their modulus is affected by both the cross-link density and the ambient temperature.
		The modulus shows an almost linear increase as the cross-link density increases but is mainly manipulated for engineering purposes by use of relatively large quantities of solid particulate materials called fillers.
		The early part of the Tensile curve is linear and the gradient of this is taken as a measure of the Youngs Modulus of the material (E).
	www.azom.com /details.asp?ArticleID=317 (1552 words)

	Actuator system having magnetomechanical cantilever beam formed of ferromagnetic amorphous material - Patent 4644310
		The change in Young's modulus together with a constant force such as gravity produces a corresponding deflection change of the beams free end, thus providing a magnetic field dependent displacement change which operates as a high speed, high force mechanically coupled actuator.
		This magnetic field dependent Youngs modulus change, when applied to a magnetomechanical cantilever beam, which is predeflected by its own weight, or other external force, allows this deflection to change in the direction corresponding to the changes in modulus.
		Changes in Young's modulus are influenced in a given amorphous metal by the level of bias field present, the level of internal stress (or structural anisotropy) present and by the level and direction of any magnetic anisotropy.
	www.freepatentsonline.com /4644310.html (4203 words)

	Young's Modulus (Elastic Modulus)- Strength ( Mechanics ) of Materials - Engineers Edge (Site not responding. Last check: 2007-10-31)
		Young's Modulus (sometimes referred to as Modulus of Elasticity, meaning "measure" of elasticity) is an extremely important characteristic of a material.
		It is the numerical evaluation of Hooke's Law, namely the ratio of stress to strain (the measure of resistance to elastic deformation).
		To calculate Young's Modulus, stress (at any point) below the proportional limit is divided by corresponding strain.
	www.engineersedge.com /material_science/youngs_modulus.htm (127 words)

	Modulus of Rigidity
		Shear Modulus or Modulus of Rigidity is the coefficient of elasticity for a shearing or torsion force
		Modulus of Rigidity (or Shear Modulus) is the coefficient of elasticity for a shearing force.
		Modulus of Rigidity can be experimentally determined from the slope of a stress-strain curve created during tensile tests conducted on a sample of the material.
	www.engineeringtoolbox.com /modulus-rigidity-d_946.html (299 words)

	[No title] (Site not responding. Last check: 2007-10-31)
		YOUNGS MODULUS - DENSITY MAP The rationale for this map is that both density d and modulus E can be expressed as a simple function of the fundamental material properties: d = f(atomic weight W, atomic size a3, packing factor f).
		Youngs Modulus can be expressed as a function of the bond stiffness and the bond density: Modulus E = (bond stiffness S [N/m] x bond density D [1/m]), with similar consideration for the effect of the variables.
		Combining the lowest possible values for stiffness and density, the lowest possible Youngs Modulus Emin for non-porous solid is obtained: Emin = S.D = 0.5 [N/m] /(3.10-10 [m]) symbol 187 \f "Symbol" 1 GPa.
	www.mmat.ubc.ca /courses/mmat382/sections/cnc715.doc (490 words)

	Balsa Stiffness
		I am afraid it is not enough simply to weigh it and calculate the density as most of it is has poor mechanical properties.
		I now test the wood for Youngs modulus right there in the shop and only take the stuff that has the right density and stiffness.
		Youngs Modulus and Stiffness Coefficient by Bernard Hunt
	www.mindspring.com /~thayer5/ffpages/tips/euler/euler.html (746 words)

	E1876-01 Standard Test Method for Dynamic Youngs Modulus, Shear Modulus, and Poissons Ratio by Impulse Excitation of ...
		Dynamic Young's modulus is determined using the resonant frequency in either the flexural or longitudinal mode of vibration.
		The dynamic shear modulus, or modulus of rigidity, is found using torsional resonant vibrations.
		Dynamic Young's modulus and dynamic shear modulus are used to compute Poisson's ratio.
	www.astm.org /DATABASE.CART/REDLINE_PAGES/E1876.htm (527 words)

	Acoustic wave touch panel for use with a non-active stylus - Patent 5451723 (Site not responding. Last check: 2007-10-31)
		An acoustic wave touch panel as recited in claim 1 wherein said load spreading plate has a Youngs Modulus in the approximate range of 0.3.times.10.sup.10 Newtons/meter.sup.2 to 8.times.10.sup.10 Newtons/meter.sup.2 and a Shearing modulus in the approximate range of 0.10.times.10.sup.10 Newtons/meter.sup.2 to 3.times.10.sup.10 Newtons/meter.sup.2.
		These materials preferably have a Youngs Modulus in the approximate range of 0.3.times.10.sup.10 Newtons/meter.sup.2 to 8.times.10.sup.10 Newtons/meter.sup.2 and a shearing modulus in the approximate range of 0.10.times.10.sup.10 Newtons/meter.sup.2 to 3.times.10.sup.10 Newtons/meter.sup.2 over a range of thicknesses between 40 mils.
		Preferably, Youngs modulus for the elastomeric layer 20 is 1.times.10.sup.6 Newtons/meter.sup.2 --1.times.10.sup.9 Newtons/meter.sup.2.
	www.freepatentsonline.com /5451723.html (5273 words)

	C1548-02 Standard Test Method for Dynamic Youngs Modulus, Shear Modulus, and Poissons Ratio of Refractory Materials by ...
		The dynamic Young's modulus is determined using the resonant frequency in the flexural mode of vibration and the dynamic shear modulus is determined using the resonant frequency in the torsional mode of vibration.
		Poisson's ratio is computed from the dynamic Young's modulus and the dynamic shear modulus.
		It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
	www.astm.org /DATABASE.CART/REDLINE_PAGES/C1548.htm (359 words)

	[No title] (Site not responding. Last check: 2007-10-31)
		Historically, a number of models have been proposed to relate the effective Young’s Modulus to fractional porosity P of ceramics: 1.
		As a first approximation let us assume that the Youngs Modulus of the composite E is a simple linear function of the constituents (the rule of mixtures): E = E1.(1-x) + E2.x The above formula suggests that if E1>>E2 (e.g.
		A nonlinear dependence of Young's Modulus vs. porosity of porous solid has been determined.
	www.mmat.ubc.ca /courses/mmat382/sections/cnc714.doc (412 words)

	Finite Element Analysis engineering - Flexural Modulus vs Elastic Modulus - which to use ?
		Many plastics do not have their Elastic Modulus listed but their Flexural Modulus is. (obtained from a bending test as opposed to a tensile test).
		there are 4 definitions in common use(tangent modulus,initial tangent modulus, secant modulus, and chordal modulus...for ductile materials), then you have the elastic moduli determined on the basis of prismatic specimens at resonance, and ultrasonic measurments.
		The flexural modulus is actually sample's thickness dependent, and the stress/strain is not homogeneous across the thickness in the bending test(change from compressive -> neutral -> tensile across the thickness).While in tensile test for Young's modulus, the stress/strain is homogeneous (tensile)over the sample's cross section.
	www.eng-tips.com /viewthread.cfm?qid=70642 (714 words)

	Young Modulus of Elasticity for Metals
		It is convenient to express the elasticity of a material with the ratio stress to strain, a parameter also termed the tensile elastic modulus or
		Young Modulus of Elasticity - E - (10
		Modulus of Rigidity Shear Modulus or Modulus of Rigidity is the coefficient of elasticity for a shearing or torsion force
	www.engineeringtoolbox.com /young-modulus-d_773.html (302 words)

	Title page for ETD etd-04082006-131126
		Results describing the moisture content, aspect ratio, apparent specific gravity, chemical durability, Young’s modulus, and tensile strength for processed CFM and specifically their fiber and quill components are presented herein.
		The Young’s modulus of processed chicken feather materials was found to be in the range of 3 - >50 GPa and, thus, comparable to the Young’s moduli of other natural fibers.
		Finally, a simplified approach for comparing the effective Young’s moduli and effective tensile strengths of various processed CFM samples was introduced.
	etd.gatech.edu /theses/available/etd-04082006-131126 (359 words)

	Youngs modulus of elasticity (Site not responding. Last check: 2007-10-31)
		Alloys for structural purpose have practically the same modulus of elasticity.
		Calculating aluminium alloy structures, the European codes use the Young's modulus of elasticity equal to 70 000 MPa.
		For more exact calculation the Young's modulus of elasticity is listed in table below.
	www.alu-info.dk /Html/alulib/modul/A00237.htm (43 words)

	TAPPI -- leading technical association for the pulp, paper, and converting industry.
		The young’s modulus of wet paper, December 2002, Vol.
		The Young’s modulus EP wetand the out-of-plane shear modulus GP wet of the wet papers are calculated, and from the latter we deduce the out-of-plane shear modulus of the wet fibres.
		A model for paper deformation during in-plane tension is derived, that takes into account the out-of-plane shearing of fibres.
	www.tappi.org /index.asp?pid=25414 (151 words)

	[No title]
		The S-wave and P-wave velocities are desired because they form the core of mathematical theorems which describe the elasticity/plasticity of soils and are used to predict settlement, liquefaction, and failure.
		As such, accuracy in the estimation of shear and compression waves velocities is of paramount importance because these values are squared during the calculation of geotechnical parameters such as the Shear Modulus, Poissons Ratio, and Youngs Modulus (Ohya, 1982), among others.
		In all of the above methods of analysis the fundamental input geotechnical parameters are the maximum shear modulus and attenuation characteristic of the soil profile under study.
	www.bcengineers.com /scptdoc.htm (1126 words)

	» Bass Guitar Modulus
		Bass Guitar Modulus is a very popular topic among guitar players and musicians.
		This directory is your complete source for bass guitar modulus, guitar news, guitar reviews, guitar accessories and any other guitar related information.
		Modulus Bass Guitar - This site is loaded with tons of useful resources about Modulus Bass Guitar.
	www.guitar-resources.com /bass-guitar-modulus.html (1059 words)

	Temperature dependent elastic modulus, thermal expansion, thermal conductivity database
		Temperature dependent elastic modulus, thermal expansion, thermal conductivity database
		elastic modulus, young's modulus, youngs modulus, cte, thermal expansion, thermal conductivity, emissivity, stress rupture, creep strength
		Provide easy access to over 2,500 materials and 19,000 sets of temperature dependent data for elastic modulus, thermal expansion, thermal conductivity, S-N fatigue curves, stress-strain curves and more.
	www.jahm.com (323 words)

	Dynamic Youngs modulus relaxation and softening in YBa2Cu3O7-x
		Measurements of the dynamic Youngs modulus were performed in polycrystalline YBCO by the vibrating reed technique (10
		Hz) at different temperatures between 300 and 850 K. An abrupt and strong modulus softening, indicative of a phase transition, occurs with increasing x at about 0.50.
		Isothermal modulus measurements suggest that the orthogonal phase first transforms into a tetragonal matrix with embedded micro-ortho domains.
	stacks.iop.org /0953-2048/4/S196 (218 words)

	youngs modulus information.
		E1876-01 Standard Test Method for Dynamic Youngs Modulus, Shear...
		Determination of Young's Modulus of Carbon Nanotube Using...
		Young's Modulus Measurement of Silicon Nitride Ceramics by...
	www.hostkhiladi.com /spellcheck/y/youngs_modulus.html (224 words)

	Polymer engineering - Youngs Modulus Of High Impact Polystyerene
		The amount of rubber varies a lot from grade to grade because although the rubber improved impact resistance, it is not good for some of the other properties and so the best balance depends on the application.
		Basically to find the modulus of the mineral filled polymer or the rubber filled polymer the method is the same.
		So you just need to know the modulus of the particles you are adding and then you can calculate the modulus for the composite.
	www.eng-tips.com /viewthread.cfm?qid=135866&page=1 (800 words)

	Stress strain properties of adhesives - Young's modulus
		The stress-strain properties of an adhesive can be measured from bulk samples in tension, shear or compression and from joints in shear.
		Stress-strain properties can be used to define model parameters for input to finite element analysis.
		The graph opposite shows how % mass uptake of moisture affects the stress-strain behaviour of the adhesive, lowering both the Young's modulus and yield stress.
	www.merl-ltd.co.uk /2003_materials/adhesives02.shtml (159 words)

	Finding Young's Modulus and Poisson's Ratio
		The modulus of elasticity in tension, also known as Young's modulus E, is the ratio of stress to strain on the loading plane along the loading direction,
		Common sense (and the 2nd Law of Thermodynamics) indicates that a material under uniaxial tension must elongate in length.
		Therefore the Young's modulus E is required to be non-negative for all materials,
	www.efunda.com /formulae/solid_mechanics/mat_mechanics/elastic_constants_E_nu.cfm (251 words)

	Young's Modulus,Macintosh,Windows
		YOUNG'S MODULUS 6.45 is here by the author of X-Plane
		Young's Modulus is the STRESS of a material divided by it's STRAIN.
		That is how much the material YIELDS for each pound of load put on it.
	www.youngsmodulus.com (464 words)

	[No title]
		Each block had to meet or exceeded the "Youngs Modulus" which is a test of the Plastic Limit of the material manufactured.
		Every block made had to meet or exceed the 14.5 PSI on the "Youngs Modulus" in order to be accepted and used on the project.
		Through random block sampling in accordance with the specification set forth, our blocks were tested on a weekly basis for conformance of the "Young Modulus".
	www.branchriver.com /pom.html (277 words)

	Basic Physics
		So the material of steel under fire is needed to be setup, whose other parameter is the same to normal steel except that the Yang¡¯s modulus and strength is set as 1/20 of normal ones, to approach the performance of steel at 700¡æ.
		This report, when corrected to show the accepted reality of the temperature ranges and Youngs modulus, supports the postulation that additional energies, other than those from aircraft impact and fire, were necessary to cause a total collapse.
		Obviously I know little about the "fracture plastic strain of steel structure" and less about a Young's Modulus, but since they are talking about stopping failure 100m under the impact, I think they are talking about the OVERALL DESIGN of the building, not the fire impact area.
	forum.physorg.com /Basic-Physics_3108-7000.html (12281 words)

	Mercantil cantilever - CHILE (Site not responding. Last check: 2007-10-31)
		Find The Section Modulus (Z) For Standard Beams...
		Find The Section Modulus (Z) For Many Common Cross-Sectional Areas...
		For general questions on spring constants, please e-mail us at...
	www.9-arts.us /cantilever.htm (585 words)

	JC Physics - Young's Modulus (Site not responding. Last check: 2007-10-31)
		Can the youngs modulus of a strip of metal be found by using this formulae
		I take it you're looking at a atrip of metal in cantilever bending and you're trying to ask if this formula for Young Modulus is correct.
		You'll find that their formula reduces to yours if your strip is solid metal and rectangular.
	www.jcphysics.com /phorum-3.2.11/read.php?f=1&t=613&a=1 (91 words)

	Youngs
		The company has been brewing under the Young's brand since 1831.
		They produce a wide variety of beers and operate pubs, cafes, and hotels around England.
		This beer- or brewery-related article is a stub.
	www.governpub.com /Bee-Y/Youngs.php (49 words)

	Steel Dictionary - Y
		The deviation is expressed in terms of strain.
		For a stretched wire, Young's Modulus is the ratio of the stretching force per unit cross-sectional area to the elongation per unit length.
		The values of Young's Modulus for metals are of the order 10(12) dynes per square cm.
	www.mesteel.com /dictionary/y.htm (190 words)

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