Mega-Pascal

The values of these factors are provided by the bearing manufacturers in their catalogues, based on the ratios F /Cg and F IFy, where C is the static load rating in kg or N (based on a contact stress of 4200 MPg for ball bearings and 4000 MPj, for roller bearings, also provided in these catalogues. MPg is the unit of stress in Mega-Pascals. 

The important tensile modulus (modulus of elasticity) is another property derived from the stress-strain curve. The speed of testing, unless otherwise indicated is 0.2 in./min, with the exception of molded or laminated TS materials in which the speed is 0.05 in./min. The tensile modulus is the ratio of stress to corresponding strain below the proportional limit of a material and is expressed in psi (pounds per square inch) or MPa (mega-Pascal) (Fig. 2-7). 

J Joule, a unit of energy m.p. MPa MW Melting point Mega Pascal Molecular weight... 

Measuring the pressure dependence of the exchange rate constant leads to activation volumes, AV and this technique has become a major tool for the mechanistic identification of solvent exchange mechanisms (8,16,17). In the last 25 years high-pressure, high-resolution NMR probes were developed which allow the application of all NMR techniques described to pressures up to several hundreds of mega Pascals (18). 

Modulus - In the testing of rubber, it is the force in per unit area lbs/in or mega-pascals of initial cross-sectional area necessary to produce a given percentage of elongation. 

Mpa - The abbreviation for mega-pascal, a metric unit of measurement. 

PRESSURE. If a body of fluid is at rest, the forces are in equilibrium or the fluid is in static equilibrium. The types of force that may aci on a body are shear or tangential force, tensile force, and compressive force. Fluids move continuously under the action of shear or tangential forces. Thus, a fluid at rest is free in each part from shear forces one fluid layer does not slide relative to an adjacent layer. Fluids can be subjected to a compressive stress, which is commonly called pressure. The term may be defined as force per unit area. The pressure units may be dynes per square centimeter, pounds per square foot, torr. mega-Pascals, etc. Atmospheric pressure is the force acting upon a unit area due to the weight of the atmosphere. Gage pressure is the difference between the pressure of the fluid measured (at some point) and atmospheric pressure. Absolute pressure, which can be measured by a mercury barometer, is the sum of gage pressure plus atmospheric pressure. 

In these equations ATx is in degrees Celsius and p is in mega pascals. 

Figure 1. Strength scale for glass and glass ceramics. (To convert mega pascals to pounds per square inch, multiply by 145.)...

The tensile force per unit area of the original cross-section within the gauge length carried by the test piece at any given moment. The standard unit is mega-Pascal (MPa = MN/m)... 

A primary method used to characterize adhesives is the lap shear test. A diagram of the test is shown in Fig. 27.1 and is described in Standard Test Method ASTM D1002 [4]. The specimen is usually 1 in. (2.54 cm) wide. The lap shear test places the adhesive in normal as weU as shear stress [5]. This type of test is used for many types of adhesives, with the exception of pressure-sensitive adhesives (PSAs, defined below). In the tables presented later, lap shear strength is presented in units of mega Pascal (MPa) and pounds per square inch (psi). The latter is shown in parenthesis. The temperature of the test will always be room temperature. 

MPa Mega Pascal. One million pascals. A unit of pressure. 

MMP multimaterial molding or multimaterial multiprocess MO molecular orientation MP Modern Plastics publication MPa mega-Pascal (10 Pascal) mPE metallocene polyethylene MRPMA Malaysian Rubber Products Manufacturers Assoc. 

Their compression strength is expressed in MPa (Mega Pascal or N/mm ). 

Multilinear regression Multiple least squares Multilinear wavelength regression Mathematic morphology Milli mass unit Melting point Mega Pascal... 

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