Application of bonded patch and sleeve to cracked hole repair under biaxial load

A general description of creep and plastic deformation based on overlay models is presented. This includes the description of time effects during plastic deformation at room temperature. A detailed procedure to obtain the model parameters is also discussed. The description has been evaluated for a large number of uniaxial and biaxial load histories on thin walled tubes. The materials involved are a 2 1/4 Cr-1 Mo steel stabilized with Niobium (WN 1.6770) and a 304 stainless steel (WN 1.4948). The theoretical predictions of the plastic deformations are found to be sufficiently accurate. The evaluation of the phenomenological description for creep shows a fairly good agreement with the real creep deformation process. Special attention requires the description of softening due to microstructural changes.

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Erratum for “Sustained Biaxial Load on Slender Concrete Columns”

Journal of the Structural Division ◽

10.1061/jsdeag.0003127 ◽

1972 ◽

Vol 98 (1) ◽

pp. 368-368

Author(s):

Robert G. Drysdale ◽

Mark W. Huggins

Keyword(s):

Concrete Columns ◽

Biaxial Load

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Microstructure evolution of stainless steel subjected to biaxial load path changes: In-situ neutron diffraction and multi-scale modeling

International Journal of Plasticity ◽

10.1016/j.ijplas.2019.06.006 ◽

2019 ◽

Vol 122 ◽

pp. 49-72 ◽

Cited By ~ 3

Author(s):

Manas V. Upadhyay ◽

Jan Capek ◽

Tobias Panzner ◽

Helena Van Swygenhoven

Keyword(s):

Stainless Steel ◽

Neutron Diffraction ◽

Microstructure Evolution ◽

Load Path ◽

Multi Scale ◽

Scale Modeling ◽

Biaxial Load ◽

Multi Scale Modeling ◽

In Situ Neutron Diffraction

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Cycling Power Optimization System Using Link Models of Lower Limbs with Cleat-shaped Biaxial Load Cells

Procedia Engineering ◽

10.1016/j.proeng.2014.06.014 ◽

2014 ◽

Vol 72 ◽

pp. 68-73

Author(s):

Akihiro Matsuda ◽

Kento Yamashita ◽

Keisuke Ishikura ◽

Hideki Takagi

Keyword(s):

Power Optimization ◽

Lower Limbs ◽

Optimization System ◽

Biaxial Load ◽

Load Cells

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Determining the Damage and Failure Behaviour of Textile Reinforced Composites under Combined In-Plane and Out-of-Plane Loading

Materials ◽

10.3390/ma13214772 ◽

2020 ◽

Vol 13 (21) ◽

pp. 4772

Author(s):

Christian Düreth ◽

Daniel Weck ◽

Robert Böhm ◽

Mike Thieme ◽

Maik Gude ◽

...

Keyword(s):

Three Dimensional ◽

Fibre Volume ◽

Reinforced Composites ◽

Biaxial Testing ◽

Damage And Failure ◽

Multi Scale ◽

Load Paths ◽

Biaxial Load ◽

Out Of Plane ◽

Ct Data

The absence of sufficient knowledge of the heterogeneous damage behaviour of textile reinforced composites, especially under combined in-plane and out-of-plane loadings, requires the development of multi-scale experimental and numerical methods. In the scope of this paper, three different types of plain weave fabrics with increasing areal weight were considered to characterise the influence of ondulation and nesting effects on the damage behaviour. Therefore an advanced new biaxial testing method has been elaborated to experimentally determine the fracture resistance at the combined biaxial loads. Methods in image processing of the acquired in-situ CT data and micrographs have been utilised to obtain profound knowledge of the textile geometry and the distribution of the fibre volume content of each type. Combining the derived data of the idealised geometry with a numerical multi-scale approach was sufficient to determine the fracture resistances of predefined uniaxial and biaxial load paths. Thereby, Cuntze’s three-dimensional failure mode concept was incorporated to predict damage and failure. The embedded element method was used to obtain a structured mesh of the complex textile geometries. The usage of statistical and visualisation methods contributed to a profound comprehension of the ondulation and nesting effects.

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An endochronic theory accounting for deformation induced anisotropy of metals under biaxial load

International Journal of Plasticity ◽

10.1016/s0749-6419(96)00038-1 ◽

1996 ◽

Vol 12 (8) ◽

pp. 987-1004 ◽

Cited By ~ 15

Author(s):

Wei-Ching Yeh ◽

Chia-Dou Ho ◽

Wen-Fung Pan

Keyword(s):

Induced Anisotropy ◽

Endochronic Theory ◽

Biaxial Load

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Fracture Under Combined Loads by Maximum-Energy-Release-Rate Criterion

Journal of Applied Mechanics ◽

10.1115/1.3424360 ◽

1978 ◽

Vol 45 (3) ◽

pp. 553-558 ◽

Cited By ~ 123

Author(s):

C.-H. Wu

Keyword(s):

Maximum Stress ◽

Maximum Energy ◽

Antiplane Shear ◽

Combined Loads ◽

Biaxial Load ◽

Title Problem ◽

Minimum Strain Energy ◽

Energy Release Rate Criterion ◽

Rate Criterion ◽

Maximum Energy Release

The title problem is studied for the cases: (1) crack-perpendicular tension and crack-parallel shear, (2) plane biaxial load, (3) crack-parallel shear and antiplane shear, and (4) unidirectional load and antiplane shear. All the results are based on a fundamental investigation reported in references [1, 2], the results of which are partly exact, and partly asymptotic and numerical. Neither the maximum-stress nor the minimum-strain-energy-density criterion indicates a coupling between plane and antiplane loads.

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