Finite element analysis of an elastic model of the brain: Distortion due to acute epidural hematoma-the role of the intra-ventricular pressure gradient

2007 ◽  
Vol 12 (2) ◽  
pp. 131-136
Author(s):  
Hooshang Saberi ◽  
Amir Saied Seddighi ◽  
Farhad Farmanzad
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Pressure Gradient ◽  
Epidural Hematoma ◽  
Ventricular Pressure ◽  
Elastic Model ◽  
Element Analysis ◽  
Acute Epidural Hematoma ◽  
The Brain

The role of greater tuberosity healing in reverse shoulder arthroplasty: a finite element analysis

2020 ◽  
Vol 29 (2) ◽  
pp. 347-354 ◽  
Author(s):  
Vani J. Sabesan ◽  
Diego J.L. Lima ◽  
Yang Yang ◽  
Matthew C. Stankard ◽  
Mauricio Drummond ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Shoulder Arthroplasty ◽  
Reverse Shoulder Arthroplasty ◽  
Element Analysis ◽  
Greater Tuberosity

scholarly journals New insights into the biomechanics of Legg-Calvé-Perthes’ disease

2018 ◽  
Vol 7 (2) ◽  
pp. 148-156 ◽  
Author(s):  
M. Pinheiro ◽  
C. A. Dobson ◽  
D. Perry ◽  
M. J. Fagan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Blood Supply ◽  
Vascular Occlusion ◽  
Perthes Disease ◽  
Element Analysis ◽  
Vascular Obstruction ◽  
Delayed Ossification ◽  
Skeletal Immaturity

Objectives Legg–Calvé–Perthes’ disease (LCP) is an idiopathic osteonecrosis of the femoral head that is most common in children between four and eight years old. The factors that lead to the onset of LCP are still unclear; however, it is believed that interruption of the blood supply to the developing epiphysis is an important factor in the development of the condition. Methods Finite element analysis modelling of the blood supply to the juvenile epiphysis was investigated to understand under which circumstances the blood vessels supplying the femoral epiphysis could become obstructed. The identification of these conditions is likely to be important in understanding the biomechanics of LCP. Results The results support the hypothesis that vascular obstruction to the epiphysis may arise when there is delayed ossification and when articular cartilage has reduced stiffness under compression. Conclusion The findings support the theory of vascular occlusion as being important in the pathophysiology of Perthes disease. Cite this article: M. Pinheiro, C. A. Dobson, D. Perry, M. J. Fagan. New insights into the biomechanics of Legg-Calvé-Perthes’ disease: The Role of Epiphyseal Skeletal Immaturity in Vascular Obstruction. Bone Joint Res 2018;7:148–156. DOI: 10.1302/2046-3758.72.BJR-2017-0191.R1.

Study on the Acquisition Method of Tire Rubber Parameters Based on Simple Shear Test

2016 ◽  
Vol 717 ◽  
pp. 32-37
Author(s):  
Ruo Yun Wang ◽  
Jian Yun He ◽  
Ying An ◽  
Yong Kang Hu ◽  
Xin Hua Fu ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Simple Shear ◽  
Shear Test ◽  
Elastic Model ◽  
Element Analysis ◽  
Tire Rubber ◽  
Simple Shear Test ◽  
Hyper Elastic ◽  
Acquisition Method

Tire simulation gradually becomes an important mean to ensure the quality of the tires. In order to guarantee the reliability of the analysis, the study on the method of obtaining the material parameters is also increasing. According to tire force situation of actual work, the acquisition method of tire rubber parameters based on simple shear test and its application in finite element analysis were studied in this paper. In this research, the international advanced dynamic mechanical analyzer was used to test the tire rubber, and the experimental results were processed by Yeoh hyper-elastic model. The hyper-elastic parameters and thus obtained could be used for finite element analysis of tires, and the simulation results showed that these parameters could be used to simulate the tire performance. In addition, the results could also provide certain guidance for the design and manufacture of tire.

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