Three-dimensional clavicle displacement analysis and its effect on scapular position in acute clavicle midshaft fracture

The complexity of structural materials is increasing the importance of the technology for high accuracy measurement. How to obtain the displacement information of structural feature points accurately and efficiently is the key issue of deformation analysis. In this article, displacement analysis of a composite arched structure is investigated based on the terrestrial laser scanning technique. A new method based on the measured point cloud is proposed to analyze the displacement of surficial points, resulting in not only the displacement size but also the displacement direction. The innovation lies in extracting the displacement information with a network and remapped point cloud, which is called the network method. The displacement map obtained demonstrates that the transverse displacement in the experiment plays an important role in the safety of the structure, which could not be observed and obtained by the surface approximation method. Therefore, the panorama- and pointwise displacement analysis technologies contribute to ensure the safety of increasingly complex constructions.

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Three-dimensional displacement analysis by projected fringes and speckle correlation

10.1117/12.245153 ◽

1996 ◽

Author(s):

Thomas Wolf ◽

Bernd Gutmann ◽

H. Weber

Keyword(s):

Three Dimensional ◽

Displacement Analysis ◽

Speckle Correlation

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Three-dimensional elastic stress and displacement analysis of finite geometry solids containing cracks

International Journal of Fracture ◽

10.1007/bf00033528 ◽

1975 ◽

Vol 11 (3) ◽

pp. 409-429

Author(s):

John P. Gyekenyesi ◽

Alexander Mendelson

Keyword(s):

Elastic Stress ◽

Three Dimensional ◽

Finite Geometry ◽

Displacement Analysis

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Modeling of low-cement extruded curb of concrete-faced rockfill dam

Canadian Geotechnical Journal ◽

10.1139/t10-054 ◽

2011 ◽

Vol 48 (1) ◽

pp. 89-97 ◽

Cited By ~ 4

Author(s):

Ga Zhang ◽

Jian-Min Zhang

Keyword(s):

Numerical Simulation ◽

Damage Model ◽

Three Dimensional ◽

Two Dimensional ◽

Direct Simulation ◽

Construction Technique ◽

Displacement Analysis ◽

Rockfill Dam ◽

The Face ◽

Cushion Layer

As the key structure of a practical construction technique, the low-cement extruded curb has been widely used in recent concrete-faced rockfill dams (CFRDs). The extruded curb exhibits significant interactions with the neighboring gravels and with the face slab. These interactions were investigated using element tests, and a new model was proposed. This model is composed of three parts: (i) the equivalent slab that is described using an ideal elastoplasticity model, (ii) the equivalent interface between the curb and the gravel cushion layer that is described using an elastoplasticity damage model, and (iii) the interface between the curb and the face slab that is described using a modified ideal elastoplasticity model. This model was verified via a two-dimensional numerical simulation of an ideal CFRD to capture the main behavior of the extruded curb with interactions between the extruded curb and the neighboring soil – face slab, employing a significantly smaller number of elements and a shorter calculation than direct simulation. The model was used to perform a three-dimensional stress–displacement analysis of the Bakun CFRD (205 m in height), and the results showed that the extruded curb causes a change in the stress of the face slab.

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