作者: GIST 時(shí)間: 2025-3-21 20:42 作者: 變形詞 時(shí)間: 2025-3-22 03:19 作者: 吸引力 時(shí)間: 2025-3-22 05:56
The Description of a Material,The state quantities are the basic quantities which describe the equilibrium and the evolution of a material or of a structure. Their choice depends on the sophistication of the model one is seeking. Thus their choice depends on the needs of the scientist or engineer involved.作者: Pedagogy 時(shí)間: 2025-3-22 09:23 作者: 圓桶 時(shí)間: 2025-3-22 13:09
The Constitutive Laws. Case with Constraints on the State Quantities,State quantities can be subject to internal constraints, i.e., their values can have limitations. In our example, . is a volume proportion that has values between 0 and 1 作者: 后天習(xí)得 時(shí)間: 2025-3-22 18:11 作者: 笨拙處理 時(shí)間: 2025-3-22 23:20
Deformable Solids Without Interaction at a Distance,In this chapter we consider the deformable solids of Chan. 6 but we assume that there is no interaction at a distance. It results that., and ..(..,..) are zero and that the dissipative forces at a distance .., .., ..are also zero. Then the extended free energies are作者: 壯觀的游行 時(shí)間: 2025-3-23 03:42 作者: ESPY 時(shí)間: 2025-3-23 09:37 作者: 品牌 時(shí)間: 2025-3-23 11:22
Shape Memory Alloys,orm into one another. These phase changes can be produced either by thermal actions or by mechanical actions. The striking properties of shape memory alloys result from interactions between mechanical and thermal actions [23, 146, 211].作者: 障礙 時(shí)間: 2025-3-23 17:07
d on practical problems in mechanical engineering, the author develops in this book the fundamental concepts of non-smooth thermomechanics and introduces the necessary background material needed to deal with mechanics involving discontinuities and non-smooth constraints. From this point, powerful me作者: 喃喃訴苦 時(shí)間: 2025-3-23 19:26
Book 2002roduces the necessary background material needed to deal with mechanics involving discontinuities and non-smooth constraints. From this point, powerful methods for the applied mathematician and the mechanical engineer are derived, and applied to numerous cases including collisions of deformable and 作者: SLING 時(shí)間: 2025-3-23 23:26
deformable solids, shape memory alloys, damage of materials, soil freezing, supercooling and solid--liquid phase changes, to name but a few. This book will be of great value to both the researcher and practitioner, but it can also be used as an advanced text for students in civil and mechanical engineering.978-3-642-08578-9978-3-662-04800-9作者: 他日關(guān)稅重重 時(shí)間: 2025-3-24 03:57
Unilateral Contact. Contact with Adhesion,state of the bonds between the two solids. Because we want to remain on the macroscopic or engineering level, we choose the surface fraction ? of active or unbroken bonds as a state quantity together with the gap between the solids. The damage of composite materials has been investigated from this point of view [8].作者: MINT 時(shí)間: 2025-3-24 09:02
Collision of Rigid Bodies. Multiple Collisions,restitution coefficient is attributed. In this chapter, the same approach is followed in order to produce a simple, usable collision theory. The only improvement is a step toward continuum mechanics. The idea is developed that a system made of two rigid bodies is deformable because the distance between the two solids can change.作者: 大猩猩 時(shí)間: 2025-3-24 11:01
Evolution of Two Deformable Solids with Collisions,e velocity discontinuities. The principle of virtual power in this situation is favourably replaced by its expression integrated with respect to time: the principle of virtual work. We assume that the two solids collide on conformal surfaces [157]. Thus the contact surface has a nonzero Lebesgue measure during the collision which is instantaneous.作者: 誘騙 時(shí)間: 2025-3-24 17:11
,Solid—Liquid Phase Change. Supercooling. Soil Freezing, level are investigated. Supercooling is described in the first section. The classical ice-water phase change is investigated in the second section. Then the phase changes in porous media with applications to soil freezing are investigated, together with phase changes in the presence of solutes and dissipative phase changes.作者: 無思維能力 時(shí)間: 2025-3-24 19:58 作者: visceral-fat 時(shí)間: 2025-3-25 00:47 作者: 小樣他閑聊 時(shí)間: 2025-3-25 07:10
Damage. Gradient of Damage, energy yield numerous, versatile constitutive laws. The constitutive laws are coupled with the balance law resulting from the principle of virtual power to give predictive theories [171, 231, 96, 147, 148, 11, 81].作者: Carcinoma 時(shí)間: 2025-3-25 10:54 作者: 蘑菇 時(shí)間: 2025-3-25 12:03
The Principle of Virtual Power,ower is used. It is known that this is equivalent to the momentum balance laws (provided some assumptions are satisfied) [12]. We think that for the applications we have in mind, it is easier to define the new interior forces by their virtual power than to define them directly. Thus to derive the eq作者: 閑逛 時(shí)間: 2025-3-25 18:46
Deformable Solids with Interactions at a Distance,n order to describe their possible contacts, conditions which ensure their impenetrability are considered. The surfaces ..(.) and ..(.) are involved in those conditions. To establish them, the distance vector of a point .. to an other point .. is defined by 作者: insipid 時(shí)間: 2025-3-25 20:54 作者: 完全 時(shí)間: 2025-3-26 01:48
Evolution of Two Deformable Solids with Collisions,ut velocity discontinuity, i. e., without those deformable solids encountering the action of percussions. In this chapter, collisions of deformable solids with volume discontinuities of velocity are investigated. The ideas developed in Chaps. 6 and 8 lead us to introduce percussions related to volum作者: 散開 時(shí)間: 2025-3-26 06:25
Material with Volume Interactions at a Distance. Fibre Reinforced Material,ale we choose, the solid fibre mixture appears as an homogeneous continuum medium. We decide to describe the deformations due to the fibres by the variations in the distances between the points of the continuum medium. In a subdomain . of the part . of .. occupied by the material, the actions at a d作者: 剛毅 時(shí)間: 2025-3-26 09:56
,Solid—Liquid Phase Change. Supercooling. Soil Freezing,at the fusion temperature does not always occur: supercooling can intervene. The phase change in the presence of a passive phase, for instance, in a porous medium, can be very intricate (it is much more intricate in a reactive situation [226]). In this chapter, predictive theories on the engineering作者: Optic-Disk 時(shí)間: 2025-3-26 14:51
Damage. Gradient of Damage,quantities which appear in the expression of the free energy of the material [171, 135, 172, 147, 148, 81]. The many possible expressions for the free energy yield numerous, versatile constitutive laws. The constitutive laws are coupled with the balance law resulting from the principle of virtual po作者: 奴才 時(shí)間: 2025-3-26 19:08 作者: Phagocytes 時(shí)間: 2025-3-27 00:02 作者: Substance 時(shí)間: 2025-3-27 04:53
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