Results 71 to 80 of about 2,683,565 (214)

Developing a fracture locus for predicting ductile fracture in stainless steel 316L additively manufactured using laser powder bed fusion

Additive Manufacturing Letters
The ductile fracture behavior of additively manufactured hot-isostatically pressed stainless steel 316 L was investigated using a combined experimental, numerical, and data-driven modeling approach.
Surajit Dey, Subramaniam Rajan, Ravi Kiran   +2 more
doaj   +1 more source

Multi‐factor coupling effects in hydraulic fracturing of laminated shale: Experimental insights and physics‐informed neural network‐driven optimization

Deep Underground Science and Engineering, EarlyView.
This study establishes a multi‐factor coupling framework for predicting breakdown pressure in laminated shale by integrating experimental hydraulic fracturing tests, physics‐informed neural networks (PINNs), and Sobol sensitivity analysis. It reveals how differential stress, the bedding dip angle, and the injection rate interact to influence fracture ...
Tao Wang, Guoyao Xu, Liyuan Liu, Yao Zhang, Sitao Zhu, Hongyang Chu, Kaikai Zhao   +6 more
wiley   +1 more source

Numerical research on anti‐dislocation measures design of deep‐buried tunnels in an anisotropic rock mass area

Deep Underground Science and Engineering, EarlyView.
This paper conducts a numerical simulation study on the construction of a deep‐buried tunnel in an anisotropic stratum area. A statistical analysis of the effects of two anti‐faulting design measures, namely, a conventional design and an articulated design, is carried out, and the results demonstrate the effectiveness of the anti‐faulting structures ...
Shiqi Liu, Huanling Wang, Yong Zhou, Zhen Wang   +3 more
wiley   +1 more source

Influence of the Lode parameter and the stress triaxiality on the failure of elasto-plastic porous materials [PDF]

, 2012
International audienceThis work makes use of a recently developed ''second-order'' homogenization model to investigate failure in porous elasto-plastic solids under general triaxial loading conditions.
Danas, Kostas, Ponte Castañeda, Pedro
core   +2 more sources

Stress Triaxiality in Anisotropic Metal Sheets-Definition and Experimental Acquisition for Numerical Damage Prediction. [PDF]

Materials (Basel), 2022
Rickhey F, Hong S.
europepmc   +1 more source

Probabilistic characterization of seepage‐induced tunnel face failure via a two‐phase double‐point material point method

Deep Underground Science and Engineering, EarlyView.
To address seepage‐induced tunnel face collapse, this study develops a two‐phase double‐point MPM framework to capture large‐deformation hydro‐mechanical interactions. Incorporating a cementation‐based constitutive model with dynamic permeability updates, the model is successfully validated against saturated granular‐column collapse experiments ...
Yue Tong, Mingliang Zhou, Jie Xu, Zeyu Li, Yisheng Zhao, Jin An, Hongwei Huang   +6 more
wiley   +1 more source

On the Determination of Stress Triaxiality in a Cast Aluminum Alloy

This study presents a prediction of fracture behavior in the cast material AlSi10MnMg-T7 under multiaxial loading conditions. The main goal is to establish a triaxiality locus, which is a diagram illustrating the relationship between the equivalent ...
Arslan, Eray, Jafar Aljazayeri, Azadeh, Zigo, Milan   +2 more
core   +4 more sources

A Fracture Criterion for Prediction of Fracture Initiation of Metal Materials at Various Stress States for Nuclear Waste Storage

Science and Technology of Nuclear Installations, 2019
A fracture criterion is newly proposed to evaluate fracture behavior and predict fracture initiation of metal materials in different complicated stress states for four different fracture mechanisms including quasicleavage fracture, normal fracture with ...
Zhihui Li, Xue Yang, Anmin Tang
doaj   +1 more source

Cortical bone continuum damage mechanics constitutive model with stress triaxiality criterion to predict fracture initiation and pattern. [PDF]

Front Bioeng Biotechnol, 2022
Cronin DS, Watson B, Khor F, Gierczycka D, Malcolm S.   +4 more
europepmc   +1 more source

Dynamic prediction of coal and gas outburst risk based on quantitative analysis of stress–energy evolution and adaptive correction

Deep Underground Science and Engineering, EarlyView.
This study quantitatively analyzed the spatiotemporal evolution of stress redistribution ahead of the working face by integrating coal seam distribution, tectonic stress anomalies, gas pressure, and mining‐induced disturbances. An R‐value criterion for coal and gas outburst (CGO) risk assessment was established based on energy principles.
Yingjie Zhao, Xueqiu He, Dazhao Song, Liming Qiu, Minggong Guo, Jie Liu, Qiang Liu, Yi Zhu   +7 more
wiley   +1 more source