A Quantitative Fracture Model for the Initiation of Submarine Landslides

1997 ◽  
Author(s):  
Stephen J. Martel
Keyword(s):  
Fracture Model ◽  
Submarine Landslides

Study of the strained-deformed state of a nonunion fracture model of the distal femoral metaepiphysis in different variants of its fixation

2011 ◽  
Vol 0 (4) ◽  
pp. 72
Author(s):  
Grigoriy Golka ◽  
Anton Bilostotskiy ◽  
Igor Subbota ◽  
Valeriy Sukhoveckiy ◽  
Oleg Fadeev
Keyword(s):  
Fracture Model ◽  
Deformed State

ELASTIC PROPERTIES OF 3D PRINTED FRACTURE MODEL WITH TRANSVERSELY ISOTROPIC BACKGROUND

2020 ◽  
Author(s):  
Lingyun Kong ◽  
◽  
Mehdi Ostadhassan ◽  
Junxin Guo
Keyword(s):  
Elastic Properties ◽  
Transversely Isotropic ◽  
Fracture Model ◽  
3D Printed

scholarly journals Adaptive Orientation of Exponential Finite Elements for a Phase Field Fracture Model

PAMM ◽  
2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Darius Olesch ◽  
Charlotte Kuhn ◽  
Alexander Schlüter ◽  
Ralf Müller
Keyword(s):  
Finite Elements ◽  
Phase Field ◽  
Fracture Model

2D MPS method analysis of ECOKATS-V1 spreading with crust fracture model

2021 ◽  
Vol 379 ◽  
pp. 111251
Author(s):  
Jubaidah ◽  
Yuki Umazume ◽  
Nozomu Takahashi ◽  
Xin Li ◽  
Guangtao Duan ◽  
...  
Keyword(s):  
Fracture Model ◽  
Mps Method ◽  
Method Analysis

scholarly journals Design and Application of an In Situ Test Device for Rheological Characteristic Measurements of Liquefied Submarine Sediments

2021 ◽  
Vol 9 (6) ◽  
pp. 639
Author(s):  
Hong Zhang ◽  
Xiaolei Liu ◽  
Anduo Chen ◽  
Weijia Li ◽  
Yang Lu ◽  
...  
Keyword(s):  
Yellow River ◽  
Rheological Characteristic ◽  
Yellow River Delta ◽  
Turbidity Currents ◽  
Rheological Characteristics ◽  
Submarine Landslides ◽  
Test Device ◽  
Offshore Area ◽  
In Situ Test

Liquefied submarine sediments can easily lead to submarine landslides and turbidity currents, and cause serious damage to offshore engineering facilities. Understanding the rheological characteristics of liquefied sediments is critical for improving our knowledge of the prevention of submarine geo-hazards and the evolution of submarine topography. In this study, an in situ test device was developed to measure the rheological properties of liquefied sediments. The test principle is the shear column theory. The device was tested in the subaqueous Yellow River delta, and the test results indicated that liquefied sediments can be regarded as “non-Newtonian fluids with shear thinning characteristics”. Furthermore, a laboratory rheological test was conducted as a contrast experiment to qualitatively verify the accuracy of the in situ test data. Through the comparison of experiments, it was proved that the use of the in situ device in this paper is suitable and reliable for the measurement of the rheological characteristics of liquefied submarine sediments. Considering the fact that liquefaction may occur in deeper water (>5 m), a work pattern for the device in the offshore area is given. This novel device provides a new way to test the undrained shear strength of liquefied sediments in submarine engineering.

scholarly journals A quasi-monolithic phase-field description for mixed-mode fracture using predictor–corrector mesh adaptivity

2021 ◽  
Author(s):  
Meng Fan ◽  
Yan Jin ◽  
Thomas Wick
Keyword(s):  
Phase Field ◽  
Mixed Mode ◽  
Splitting Method ◽  
Fracture Model ◽  
Mixed Mode Fracture ◽  
Energy Splitting ◽  
Mesh Adaptivity ◽  
Mode Fracture ◽  
New Model ◽  
Fracture Models

AbstractIn this work, we develop a mixed-mode phase-field fracture model employing a parallel-adaptive quasi-monolithic framework. In nature, failure of rocks and rock-like materials is usually accompanied by the propagation of mixed-mode fractures. To address this aspect, some recent studies have incorporated mixed-mode fracture propagation criteria to classical phase-field fracture models, and new energy splitting methods were proposed to split the total crack driving energy into mode-I and mode-II parts. As extension in this work, a splitting method for masonry-like materials is modified and incorporated into the mixed-mode phase-field fracture model. A robust, accurate and efficient parallel-adaptive quasi-monolithic framework serves as basis for the implementation of our new model. Three numerical tests are carried out, and the results of the new model are compared to those of existing models, demonstrating the numerical robustness and physical soundness of the new model. In total, six models are computationally analyzed and compared.

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