Material deformation

Xem 1-20 trên 45 kết quả Material deformation
  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Study of Materials Deformation in Nanometric Cutting by Large-scale Molecular Dynamics Simulations

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  • One of the most fundamental question that an Engineer has to ask him/herself is what is how does it deform, and when does it break. Ultimately, it its the answer to those two questions which would provide us with not only a proper safety assesment of a structure, but also how to properly design it. Ironically, botht he ACI and the AISC codes are based on limit state design, yet practically all design analyses are linear and elastic.

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  • The book "Polycrystalline Materials - Theoretical and Practical Aspects" is focused on contemporary investigations of plastic deformation, strength and grain-scale approaches, methods of synthesis, structurals, properties, and application of some polycrystalline materials. It is intended for students, post-graduate students, and scientists in the field of polycrystalline materials.

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  • Physical laws should be independent of the position and orientation of the observer. For this reason, physical laws are vector equations or tensor equations, since both vectors and tensors transform from one coordinate system to another in such a way that if the law holds in one coordinate system, it holds in any other coordinate system.

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  • The stability problem of thin triangular plates by the small elastoplastic deformation theory, was studied in [3]. Basing on the theory of elastoplastic processes, this problem again has been investigated in [4] with incompressible material. In this paper we continue to study the mentioned problem with compressible material. The relation for determining critical forces is established. In particular the explicit expression of the critical force for the linear hardening material is found. Some numerical calculations have been given and discussed. ...

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  • Lecture Material science: Part 2 - Mechanical properties of materials presented elastic deformation – bending of beams, hooke’s law, strain, stress, elastic energy, bridges, increasing the yield strength, reduce grain size.

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  • (BQ) Part 2 book "Theory and problems of strength of materials" has contents: Stresses in beams, elastic deflection of beams double integration method, elastic deflection of beams method of singularity functions, statically indeterminate elastic beams, special topics in elastic beam theory, plastic deformations of beams, columns, combined stresses, members subjected to combined loadings, theories of failure.

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  • (BQ) Part 1 book "Fundamentals of materials science and engineering" has contents: Introduction, atomic structure and interatomic bonding, structures of metals and ceramics, imperfections in solids, polymer structures, mechanical properties, deformation and strengthening mechanisms,...and other contents.

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  • (BQ) Part 2 book "Engineering materials" has contents: Creep deformation and fracture, oxidation and corrosion; friction, abrasion and wear; materials and energy in car design; case studies in friction and wear; wet corrosion of materials,... and other contents.

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  • (BQ) Part 2 book "Advanced mechanics of materials" has contents: The thick wall cylinder, elastic and inelastic stability of columns, flat plates, stress concentrations, fracture mechanics, progressive fracture, contact stresses, time dependent deformation.

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  • The following will be discussed in this chapter: Stress & strain: axial loading, normal strain, stress-strain test, stress-strain diagram: ductile materials, stress-strain diagram: brittle materials, hooke’s law: modulus of elasticity, elastic vs. plastic behavior, fatigue, deformations under axial loading,...

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  • The following will be discussed in this chapter: Torsional loads on circular shafts, net torque due to internal stresses, axial shear components, shaft deformations, shearing strain, stresses in elastic range, normal stresses, torsional failure modes, angle of twist in elastic range,...

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  • The following will be discussed in this chapter: Pure bending, other loading types, symmetric member in pure bending, bending deformations, strain due to bending, beam section properties, properties of american standard shapes, deformations in a trans verse cross section, bending of members made of several materials,...

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  • The following will be discussed in this chapter: Deformation of a beam under transverse loading, equation of the elastic curve, direct determination of the elastic curve from the load di, statically indeterminate beams, application of superposition to statically indeterminate, moment-area theorems,...

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  • The first chapter of the fourth section describes a method that is naturally suited for fluid mechanics problems, and then considers its application for solid mechanics, particularly when plasticity or changing material interfaces are present. The material is modeled as particles, each of which can have its own properties. Because the connectivity of the particles is not prescribed, the method is particularly suitable to problems that include large deformations.

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  • There is a vast multitude of materials with strongly differing properties. A copper wire, for instance, can be bent easily into a new shape, whereas a rubber band will snap back to its initial form after deformation, while the attempt to bend a glass tube ends with fracture of the tube. The strongly differing properties are reflected in the application of engineering materials – you would neither want to build cars of glass nor rubber bridges. The multitude of materials enables the engineer to select the best-suited one for any particular component.

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  • This book develops a modern presentation of Continuum Mechanics, oriented towards numerical applications in the fields of nonlinear analysis of solids, structures and fluids. Kinematics of the continuum deformation, including pull-back/push-forward transformations between di

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  • The constitutive law of plastic deformation expresses the effects of material behavior and properties for stress analysis in the design of manufacturing technology and product service behavior, for materials testing, and for the maintenance of structural and machine components. The book represents the state of the art, but the editors do not rule out other concepts of constitutive laws. There are many different facets of the same problem and as many answers; the right one is the one that gives the most practical solution, the one that best serves the specific problem....

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  • High hardness and strength of the nanocomposite coatings are due to the fact that the movement of dislocations is suppressed at small grains and in the spaces between them, which causes the appearance of incoherent deformations. When the grain size is reduced to that of nanometres, the activity of dislocations as the source of the material ductility is restricted.

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  • This module outlines the basic mechanics of elastic response | a physical phenomenon that materials often (but do not always) exhibit. An elastic material is one that deforms immediately upon loading, maintains a constant deformation as long as the load is held constant, and returns immediately to its original undeformed shape when the load is removed. This module will also introduce two essential concepts in Mechanics of Materials: stress and strain

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