modulus of rupture of concrete?
491176
This is the stress developed in concrete on the verge of tensile failure? \n \n This is usually measured by compressing a concrete cylinder of dia 150mm and height 300mm in the plane of its longitudinal axis. Poisson ratio muliplied with compressive stress will give the Modulus of Rupture, when cylinder gets cracked. The test is known as Split Tensile Strength as the cylinder splits along the plane of loading, purely due to tension.
124635
Matt slabs or Mass Concrete
798584
This is hard, because crushing is neither tensile nor compressive failure, but much more complex. I tried googling "buckling model" and "crushing model"  but (within a reasonable period of time) couldn't find any crushing-related equations. Your problem is like but not the same as buckling since it's due to a side load rather than an axial load. While buckling is unstable (once initiated with a given load, full failure is bound to follow), crushing is progressive. A given amount of crushing of a given structure has an associated amount of energy.  And with the 6 kg figure I'd guess that you're doing more than just initiating a crush with just an initial dent; if so, I believe your definition of crushing, from which to infer a force, is arbitrary. Also, unless your can snaps into a dent like an old-fashioned oilcan, there is no single force value that is definable in your process. This sounds like the kind of nonlinear problem that would be approximated by a simulation (also difficult) rather than analysis. However, here's one reference that mentions an analytical textbook by Gordon. See problem 3. Good luck.
1117719
Smooth concrete - elastic collision!!!\nThe total kinetic energy of the system remains the same before and after the collision, (though some deformation and loss of kinetic energy takes place).  If you hear any two object colliding, that means that some kinetic energy has been lost to the system.  The ball will transfer some of its kinetic energy into the rubber pad therefore having a significant decrease in speed.  Therefore, the ball will bounce more if dropped on the smooth concrete.
1073782
These numbers refer to the compressive strength gained by the cement-sand mortar mixed in the proportion of\n 1:3   with\n (p/4 + 3)% of water of the total mass.\nThe mortar so obtained is caste into cubical moulds of 70.5mm side ie 5000mm2 area and cured for a period of 28 days and then tested in a compression testing m/c.\nThe grade of any cement sample is an assurance of the fact that the compressive strength as determined with the help of the above mentioned test will be atleast equal to it.
983191
Depends what medium is eroding it.\nI think you're looking for the hardness scale.
999288
well, others might have told you it is pressure, and actually even i would have gone for it!\nbut since you have mentioned in particular on a fluid, then this ratio can also be called as Bulk's modulus(though this applies even to solids)\nit can also be the coeff of viscosity taken velocity gradient times\nthere can be various other depictions also
530965
Pounds per square inch. Tensile Strength is expressed as the maximum load that a given material can withstand before failing. So the tensile strength of a high grade of steel might be 100,000 psi. but some steels are much lower. So if you are wanting to know what the maximum load is that you can place on the high grade of steel before it breaks, you will have to calculate what the smallest cross sectional area is that the load is being applied to. So if you have a rod that is .500" diameter the cross sectional area is 3.1416 X (Radius.250 squared)=.19635 square inches. So if 1 sq. in. will hold 100,000 Lbs. then you can multiply .19635 sq. in. by 100,000 psi to find pounds that .500" diameter rod will hold which is 19,635 Lbs. A .500" diameter bolt from the same material will hold less due to the reduced cross sectional area at the minor diameter of the threads on the bolt.  The diameter of a bolt always refers to it's nominal Major Diameter. The Minor Diameter has to be calculated, measured, or found in a table. In engineering practice a safety factor (increased cross sectional area) is added which may range from 200% to 1000% or more depending on the application. Material fatigue, vibratory loading, dynamic loading, corrosion, etc. and the possible dangers to people and property from under-engineering must always be taken into consideration in addition to this simple calculation for safety's sake.
921019
First,\ncompute the components of force perpendicular to the boom due to the weight of the boom and the object:\nBp=cos(48)*588\nOp=cos(48)*1770\n\nthe tension in the support cable can be computed by summing the torques around the pivot point:\n\nTC+TBp+TOp=0\nTC=tension*.66*24\nTBp=-Bp*.5*24\nTOp=-Op*24\nTension=(Bp*.5+Op)/.66\n=2093N\n\nThe vertical component of the tension is\ncos(48)*2093\nThe horizontal component is \nsin(48)*2093\n=1555N\nwhich is equal to the horizontal reaction force in the floor\n\nSince we know the components of force on the floor parallel to the beam as\nBh=sin(48)*588\nOh=sin(48)*1770\n\nthen v^2+h^2=parallel^2\nv=sqrt((sin(48)*588+sin(48)*1770)^2-1555^2)\n=807N\n\n\nj
1138257
The below site has the information\n\nPalm-Kernel Shell Concrete For Structural Use – A Preliminary Investigation \n\nhttp://www.ajol.info/viewarticle.php?id=21174
1005402
The criteria for Designing of the RCC building is given in the IS:456. For taking the loads on the building you have to refer IS :875 .If you want yo design the building for earthquake resistant properties than you should refer to Is4326, IS 1893, IS 13920.
470540
http://en.wikipedia.org/wiki/Strength_of_materials
973045
Concrete, as it cures, forms a complex and insoluble "crystalline" structure.  Crystalline materials such as this have atoms that are more or less "locked" in place by the kinds of chemical bonds that formed during the curing process.  Since the atoms are more or less fixed in space relative to one another, they can't slip and slide to dissipate stresses.  So, when a large enough force is applied, the strong chemical bonds finally break and a "brittle fracture" occurs.  One observes concrete shatter, creating splinters and dust, and the material is described as brittle.
1031538
Span (length) of the joist and material that the joist is made of.
704473
The stress in the cable is m*g/A.  The Young's modulus of steel is about 200*10^9 N/m^2 (pascal).  Therefore the strain will be\n\nm*g*/(A*200*10^9).\n\nThe elongation is strain*length.\n\nFor the second part, replace g above with (g+a), where a =2.7m/s^2\n\nFor the last, compute the mass from S = m*(g+a)/A, The elastic limit is Sm, so the max mass is m = Sm*A/(g+a)\n\nNote: keep the units straight.  Use kg, m, sec, N in all calcs then convert to the asked-for units last.
941031
Young's modulus, also know as the modulus of elasticity, is a mechanical material property that defines the elastic nature of a material. For example Young's Modulus (E is used as symbol for this property) of steel; E=3x10^7 psi (pounds per square in). You would need to read up a bit on the definitions of stress and strain to understand further, but if we use the simple stiffness equation of a bar: d = (F * l ) / (A * E ) where d is the displacement, l is the bar length, A is its cross-sectional area, and F is the applied force. It is basically telling you how much the bar will stretch if you pull on it.\n\nPoisson's ratio, is also a mechanical material property. It is usually 0.3 - 0.33 for metals. Simply explained it is how much a material shrinks perpendicular to its loading direction. Imagine an elastic band if you strength it, it not only becomes longer, but the strands become thinner; the amount that the strands thin compared to the amount that they stretch is defined by Poisson's Ratio.\n\nThe notion of a datum is completely unrelated to mechanical properties. A datum refers to a reference (on an engineering drawing or 3D model). Its like the origin of a coordiniate system, often used to simplify how the dimensions are drawn on the drawing. A datum is usually given a letter designation like A , On the drawing you would see it as a straight line with the A in a box touching the line.\n\nNot sure if datum geometry is basically the same thing. The only thing I can think of for that is that there could be different types of Datum i.e. a plane, a point, a cylinder, or a sphere (but I have only come across datum planes in my work, but I could imagine the other shapes could be useful under certain situations.)
423229
Go to this site http://www.bksv.com/pdf/Measuring_Vibration.pdf it should help you out with your question.