3.8 Balance of Mechanical Energy
... In the above, the stress power was derived using a global (integral) form of the equations. The stress power can also be deduced by considering a differential mass element. For example, consider such an element whose boundary particles are moving with velocity v and whose boundary is subjected to st ...
... In the above, the stress power was derived using a global (integral) form of the equations. The stress power can also be deduced by considering a differential mass element. For example, consider such an element whose boundary particles are moving with velocity v and whose boundary is subjected to st ...
SESM3004 Fluid Mechanics
... (ii) velocity gradients are assumed to be small: no higher derivatives and non-linear terms ...
... (ii) velocity gradients are assumed to be small: no higher derivatives and non-linear terms ...
Force Measurement
... transducer is shaped like an insole and consists of two subtransducer units, the front and rear. The outputs of the two units are summed to give the total force exerted by the foot. Each unit has a multilayered structure. The basic layer is a 2 mm Neoprene sponge sheet sandwiched by two 50 μm copper ...
... transducer is shaped like an insole and consists of two subtransducer units, the front and rear. The outputs of the two units are summed to give the total force exerted by the foot. Each unit has a multilayered structure. The basic layer is a 2 mm Neoprene sponge sheet sandwiched by two 50 μm copper ...
Slide 1
... Consider the relation between the shear stress yx and the shear deformation rate du/dy. Newtonian fluids are the fluids in which shear stress is linearly proportional to shear deformation rate. ...
... Consider the relation between the shear stress yx and the shear deformation rate du/dy. Newtonian fluids are the fluids in which shear stress is linearly proportional to shear deformation rate. ...
A micro-mechanical investigation of bifurcation in granular materials
... constitutive properties of the material. When a stress limit state is reached, a certain stress component passes through a maximum value and then may decrease. Under such a condition, if a certain additional external loading is applied, the system fails, sharply increasing the strain rates. The inte ...
... constitutive properties of the material. When a stress limit state is reached, a certain stress component passes through a maximum value and then may decrease. Under such a condition, if a certain additional external loading is applied, the system fails, sharply increasing the strain rates. The inte ...
Stress relaxation in aging soft colloidal glasses
... a jammed state limits their diffusive movement beyond the cage dimensions, leading to an incomplete relaxation process and restricted access to the phase space.2 The relaxation phenomena of such systems can be studied by analyzing the temporal behaviors of the response functions, which typically exh ...
... a jammed state limits their diffusive movement beyond the cage dimensions, leading to an incomplete relaxation process and restricted access to the phase space.2 The relaxation phenomena of such systems can be studied by analyzing the temporal behaviors of the response functions, which typically exh ...
Strength of materials
... modulus, also known as the tensile modulus. It can be experimentally determined from the slope of a stress-strain curve created during tensile tests conducted on a sample of the material. In anisotropic materials, Young's modulus may have different values depending on the direction of the applied fo ...
... modulus, also known as the tensile modulus. It can be experimentally determined from the slope of a stress-strain curve created during tensile tests conducted on a sample of the material. In anisotropic materials, Young's modulus may have different values depending on the direction of the applied fo ...
Chapter 5 - Stress in Fluids
... The fluid is homogeneous, that is, Tij does not depend explicitly on x. III. The fluid is isotropic, that is, there is no preferred direction. IV. When there is no deformation (eij = 0) the stress is hydrostatic, (Tij = -p δij). The first assumption implies that the relation between the stress and r ...
... The fluid is homogeneous, that is, Tij does not depend explicitly on x. III. The fluid is isotropic, that is, there is no preferred direction. IV. When there is no deformation (eij = 0) the stress is hydrostatic, (Tij = -p δij). The first assumption implies that the relation between the stress and r ...
for CCEA
... At GCSE the ‘elastic limit’ and the ‘limit of proportionality’ were treated as meaning the same thing. In fact, this is not so and at AS level we must make the distinction clear. Hooke’s Law states that: Up to a maximum load, known as the limit of proportionality, the extension of an elastic materia ...
... At GCSE the ‘elastic limit’ and the ‘limit of proportionality’ were treated as meaning the same thing. In fact, this is not so and at AS level we must make the distinction clear. Hooke’s Law states that: Up to a maximum load, known as the limit of proportionality, the extension of an elastic materia ...
Force Tension Compression Shear and Torsion
... B. If twice the force is applied, there will be twice the acceleration. C. If the same force is applied to an object with twice the mass, there will be only half the acceleration ...
... B. If twice the force is applied, there will be twice the acceleration. C. If the same force is applied to an object with twice the mass, there will be only half the acceleration ...
Chapter 3 Fracture
... Most ductile metals other than steel do not have a well-defined yield point. For these materials the yield strength is typically determined by the "offset yield method", by which a line is drawn parallel to the linear elastic portion of the curve and intersecting the abscissa at some arbitrary value ...
... Most ductile metals other than steel do not have a well-defined yield point. For these materials the yield strength is typically determined by the "offset yield method", by which a line is drawn parallel to the linear elastic portion of the curve and intersecting the abscissa at some arbitrary value ...
Stress Concentration Factors of Matrix in a Composite Subjected to
... In order to predict failure behavior and ultimate strength of a fibrous composite only based on its original constituent material properties, three challenging problems must be resolved with high success. First, the internal stresses in the constituent fiber and matrix materials must be accurately e ...
... In order to predict failure behavior and ultimate strength of a fibrous composite only based on its original constituent material properties, three challenging problems must be resolved with high success. First, the internal stresses in the constituent fiber and matrix materials must be accurately e ...
Chapter 10 Simple Harmonic Motion and Elasticity continued
... surface. The spring is stretched to x=A and released. When the box is passing through x=0, a second box of the same mass is attached to it. Discuss what happens to the (a) maximum speed (b) amplitude (c) angular frequency. ...
... surface. The spring is stretched to x=A and released. When the box is passing through x=0, a second box of the same mass is attached to it. Discuss what happens to the (a) maximum speed (b) amplitude (c) angular frequency. ...
Chapter9
... DM ADx AvDt Mass that passes a point in pipe during time Dt Eq. of Continuity ...
... DM ADx AvDt Mass that passes a point in pipe during time Dt Eq. of Continuity ...
Solids and Fluids
... • So far, we have assumed that solids always retain their original shape and cannot be deformed (“rigid bodies”) • However, the stretching, squeezing, and twisting of real objects when forces are applied are often too important to ignore (causing deformations) • Stress characterizes the strength of ...
... • So far, we have assumed that solids always retain their original shape and cannot be deformed (“rigid bodies”) • However, the stretching, squeezing, and twisting of real objects when forces are applied are often too important to ignore (causing deformations) • Stress characterizes the strength of ...
Abstracts
... Thermal analysis of laser processes can be used to predict thermal stresses and consequently deformation in a completed part. Analysis of temperature is also the basic for feedback of laser processing parameters in manufacturing. The quality of laser sintered parts greatly depends on proper selectio ...
... Thermal analysis of laser processes can be used to predict thermal stresses and consequently deformation in a completed part. Analysis of temperature is also the basic for feedback of laser processing parameters in manufacturing. The quality of laser sintered parts greatly depends on proper selectio ...
Document
... wavelength of the sine wave. The two new surfaces created during fracture—the fracture surfaces—have a total energy 2γ, which must be equal to the work required to separate the two planes of atoms (i.e., it is the area under the curve or the integral of Eq. 1.28 between 0 and λ/2): ...
... wavelength of the sine wave. The two new surfaces created during fracture—the fracture surfaces—have a total energy 2γ, which must be equal to the work required to separate the two planes of atoms (i.e., it is the area under the curve or the integral of Eq. 1.28 between 0 and λ/2): ...
CHAPTER 12 STATIC EQUILIBRIUM AND ELASTICITY • Conditions
... Objects deform when subjected to a force. In the case of the length of a metal bar or wire ... The stress ⇒ F A , and the strain ⇒ ΔL L . F stress A Young’s modulus ⇒ Y = ...
... Objects deform when subjected to a force. In the case of the length of a metal bar or wire ... The stress ⇒ F A , and the strain ⇒ ΔL L . F stress A Young’s modulus ⇒ Y = ...
HW2 - backup.pdf
... (b = 1 meter, h = 0.1 meter). The beam section is orientated along the beam to accurately represent the geometric conditions of the problem. Step Definition, Loads, and Boundary Conditions The analysis is performed in a linear static load step, taking place over one second of application time. No no ...
... (b = 1 meter, h = 0.1 meter). The beam section is orientated along the beam to accurately represent the geometric conditions of the problem. Step Definition, Loads, and Boundary Conditions The analysis is performed in a linear static load step, taking place over one second of application time. No no ...
Unlike other amorphous thermoplastics, ULTEM resin offers
... Unlike other amorphous thermoplastics, ULTEM resin offers unusually good resistance to many types of chemicals. Typically, this performance can be demonstrated by ULTEM resin’s ability to perform better in aggressive environments at higher temperatures, for longer periods of time, and under higher l ...
... Unlike other amorphous thermoplastics, ULTEM resin offers unusually good resistance to many types of chemicals. Typically, this performance can be demonstrated by ULTEM resin’s ability to perform better in aggressive environments at higher temperatures, for longer periods of time, and under higher l ...
0131.PDF
... Abstract. It is increasingly import to understand the high-strain rate response during impact of polymeric materials due to their widespread use in automotive and aerospace applications. There are three broad classes of polymer materials; elastomers, thermoplastics and thermosets. It is one of the f ...
... Abstract. It is increasingly import to understand the high-strain rate response during impact of polymeric materials due to their widespread use in automotive and aerospace applications. There are three broad classes of polymer materials; elastomers, thermoplastics and thermosets. It is one of the f ...
National Diploma in Engineering Mechanical Principles for
... P7 use the continuity of volume and mass flow for an incompressible fluid to determine the design characteristics of a gradually tapering pipe ...
... P7 use the continuity of volume and mass flow for an incompressible fluid to determine the design characteristics of a gradually tapering pipe ...
Laboratory experiments, high angular
... residual stress is likely a function of crystal orientation during deformation. Second, high angular-resolution electron backscatter diffraction (HR-EBSD) allows the residual stresses in deformed single crystals and polycrystals to be mapped with <1 micron spatial resolution. HR-EBSD mapping reveals ...
... residual stress is likely a function of crystal orientation during deformation. Second, high angular-resolution electron backscatter diffraction (HR-EBSD) allows the residual stresses in deformed single crystals and polycrystals to be mapped with <1 micron spatial resolution. HR-EBSD mapping reveals ...
Viscoelasticity
Viscoelasticity is the property of materials that exhibit both viscous and elastic characteristics when undergoing deformation. Viscous materials, like honey, resist shear flow and strain linearly with time when a stress is applied. Elastic materials strain when stretched and quickly return to their original state once the stress is removed. Viscoelastic materials have elements of both of these properties and, as such, exhibit time-dependent strain. Whereas elasticity is usually the result of bond stretching along crystallographic planes in an ordered solid, viscosity is the result of the diffusion of atoms or molecules inside an amorphous material.