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Surrogate measure of bone strengthThe stress–strain index (SSI), of a bone, is a surrogate measure of bone strength [1] determined from a cross-sectional scan by QCT or pQCT (radiological scan).en.wikipedia.org/wiki/Stress%E2%80%93strain_index- See more
See all on WikipediaStress–strain index - Wikipedia
The stress–strain index (SSI), of a bone, is a surrogate measure of bone strength determined from a cross-sectional scan by QCT or pQCT (radiological scan). The stress–strain index is used to compare the structural parameters determined by analysis of QCT/pQCT cross-sectional scans to the results of … See more
It is calculated using the following formula:
$${\displaystyle {\text{SSI}}=\sum _{i=0}^{n}{{r_{i}^{2}a({\frac {CD}{ND}})} \over {r_{\text{max}}}}}$$
Where: See moreIt was developed by the manufacturer of a peripheral quantitative CT (pQCT) scanner, and is considered to be by some an improvement over … See more
Wikipedia text under CC-BY-SA license Stress–strain curve - Wikipedia
In engineering and materials science, a stress–strain curve for a material gives the relationship between stress and strain. It is obtained by gradually applying load to a test coupon and measuring the deformation, from which the stress and strain can be determined (see tensile testing). These curves reveal many of the properties of a material, such as the Young's modulus, the yield strength and the
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Stress–strain analysis - Wikipedia
Stress–strain analysis (or stress analysis) is an engineering discipline that uses many methods to determine the stresses and strains in materials and structures subjected to forces.
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Stress–strain index - Wikiwand
The stress–strain index (SSI), of a bone, is a surrogate measure of bone strength [1] determined from a cross-sectional scan by QCT or pQCT (radiological scan). The stress–strain index is …
Toughness - Wikipedia
Toughness as defined by the area under the stress–strain curve for one unit volume of the material. In materials science and metallurgy, toughness is the ability of a material to absorb energy and plastically deform without fracturing. …
Stress-strain index - bionity.com
The stress-strain index (SSI), of a bone, is a surrogate measure of bone strength determined from a cross-sectional scan by QCT or pQCT (radiological scan). The Stress-Strain Index is used to …
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Strain (mechanics) - Wikipedia
The (infinitesimal) strain tensor (symbol ) is defined in the International System of Quantities (ISQ), more specifically in ISO 80000-4 (Mechanics), as a "tensor quantity representing the …
Strength of materials - Wikipedia
The modulus of elasticity can be used to determine the stress–strain relationship in the linear-elastic portion of the stress–strain curve. The linear-elastic region is either below the yield …
Ogden hyperelastic model - Wikipedia
The Ogden material model is a hyperelastic material model used to describe the non-linear stress–strain behaviour of complex materials such as rubbers, polymers, and biological …
Linear elasticity - Wikipedia
Linear elasticity is a mathematical model as to how solid objects deform and become internally stressed by prescribed loading conditions. It is a simplification of the more general nonlinear theory of elasticity and a branch of continuum …
应力-应变曲线 - 维基百科，自由的百科全书
某一种特定材料的应力与应变关系称为该材料的应力-应变曲线（stress-strain curve）。 每一种材料都有唯一的应力-应变曲线，该曲线可以通过记录材料在不同的拉伸和压缩加载（应力）下 …
Stress–strain curve - Simple English Wikipedia, the free …
A stress-strain curve is a graph that is used to describe the relationship between stress and strain of a specific material. Stress is captured on the y-axis and strain on the x-axis. Stress is the …
Stress-Strain-Index – Wikipedia
Der Stress-Strain-Index (abgekürzt SSI; zu Deutsch: Verformungs-Spannungs-Index) eines Knochens ist ein besseres Maß seiner Festigkeit bzw. Biegefestigkeit, [1] [2] als es die reine …
Strain energy density function - Wikipedia
A strain energy density function or stored energy density function is a scalar-valued function that relates the strain energy density of a material to the deformation gradient. = ^ = ^ = ¯ = ¯ (/) = …
Payne effect - Wikipedia
The Payne effect is a particular feature of the stress–strain behaviour of rubber, [1] especially rubber compounds containing fillers such as carbon black. [2] It is named after the British …
Stress-Strain Index Map: A New Way to Represent Corneal
Mar 11, 2021 · The Stress-Strain Index (SSI), developed and validated in an earlier study and presented as a parameter that can estimate the overall stress-strain behavior of corneal …
Four-point flexural test - Wikipedia
The four-point flexural test provides values for the modulus of elasticity in bending, flexural stress, flexural strain and the flexural stress-strain response of the material. This test is very similar to …
Stress-strain Index - LiquiSearch
The stress–strain index is used to compare the structural parameters determined by analysis of QCT/pQCT cross-sectional scans to the results of three point bending test. Read more about …
Stress-strain - Wikiversity
Stress is commonly defined as Force per unit area. It's formulae: σ = F A {\displaystyle \sigma ={\frac {F}{A}}} where: F is Tensile force, A is cross-sectional area of rod. Stain strain, ϵ …
応力-ひずみ曲線 - Wikipedia
応力-ひずみ曲線 （おうりょく-ひずみきょくせん、 英語: stress-strain curve）とは、材料の 引張試験 、圧縮試験において得られる 応力 と ひずみ の関係曲線 [1][2]。 応力-ひずみ線図 （英 …
One-Dimensional Consolidation and Stress–Strain Behaviour
2 days ago · Sand mixed with fines content is always found in the soils projects and represent a discussion subject in many research items in the literature. This article aims to study the …
Der Parental Stress Index: Stress bei der Elternschaft verstehen …
Der Parental Stress Index (PSI) ist ein wertvolles Instrument zum Verständnis und Umgang mit elterlichem Stress. Indem sie die Stressquellen erkennen, den PSI nutzen und wirksame …
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