Results 251 to 260 of about 213,966 (314)

A length scale insensitive phase-field damage model for brittle fracture

Journal of the mechanics and physics of solids, 2018
Being able to model complex nucleation, propagation, branching and merging of cracks in solids within a unified framework, the classical phase-field models for brittle fracture fail in predicting length scale independent global responses for a solid ...
Jian-Ying Wu, Vinh Phu Nguyen
semanticscholar   +1 more source

Damage and Fracture

2017
Micromechanical aspects, mechanisms and models of fracture are addressed, which have become increasingly topical since the 1990s though the basic ideas and perceptions date back to the early years of fracture mechanics. The characteristics of brittle and ductile damage on the micro-scale and the respective fractographic appearance are outlined and the ...
openaire   +1 more source

Fracture permeability damage and recovery behaviors with fracturing fluid treatment of coal: An experimental study

, 2020
The water-based fracturing fluid is commonly used in coalbed methane (CBM) industry. The fracturing fluid invades into both stimulated and natural fractures. The fracture permeability are pivot parameter for fracturing stimulation and production planning.
Qiming Huang, Shimin Liu, Weimin Cheng, Gang Wang   +3 more
semanticscholar   +1 more source

Representation of Damage with Fracture-Strain

Applied Mechanics and Materials, 2014
Under the influence of stresses and strains damage is progressively accumulated in the material leading to full damage viz. fracture corresponding to a critical damage parameter. The damage parameter varies in between zero and unity inclusive of both the values corresponding to non damaged and fully damaged condition.
C.S. Surendran, G. Sasikala
openaire   +1 more source

Fracture Behaviors and Damage Evolution Anisotropy of Granite Under Coupling of Multiaxial Confinement and Dynamic Loading

Rock Mechanics and Rock Engineering, 2023
Hangli Gong, Yi Luo, Junru Zhou, Congcong Zhao, Xinping Li   +4 more
semanticscholar   +1 more source

Fracture Precursor Recognition and Damage Quantitative Characterization of Stressed Rock Using Infrared Radiation

Rock Mechanics and Rock Engineering, 2023
Wei Liu, Liqiang Ma, Qiangqiang Gao, A. Spearing, Yangyang Wang, Ruoyu Cui, Zhiyang Zhao   +6 more
semanticscholar   +1 more source

Experimental Study on Sandstone Fracture and Damage Evolution Law Under Freeze–Thaw Cycles

Geotechnical and Geological Engineering, 2023
Chuangye Wang, R. You, Tianyu Han
semanticscholar   +1 more source

Damage and self-similarity in fracture

Theoretical and Applied Fracture Mechanics, 2003
Abstract Consider applications of damage mechanics to material failure. The damage variable introduced in damage mechanics quantifies the deviation of a brittle solid from linear elasticity. An analogy between the metastable behavior of a stressed brittle solid and the metastable behavior of a superheated liquid is established.
R Shcherbakov, D.L Turcotte
openaire   +1 more source

Research of fracture initiation and propagation in HDR fracturing under thermal stress from meso-damage perspective

Energy, 2019
By HDR (hot dry rock) fracturing the deep buried geothermal energy can be efficiently extracted from the established EGS (enhanced geothermal system).
Wei Zhang, Tiankui Guo, Zhanqing Qu, Zhiyuan Wang   +3 more
semanticscholar   +1 more source

Experimental Study on Pore-fracture Evolution Law in the Thermal Damage Process of Coal

Combustion Science and Technology, 2019
High temperature causes thermal damage to coal, alters its pore-fracture structure, and then influences its permeability and spontaneous combustion characteristics.
Yongliang Yang, Kaiyue Zheng, Zhiwei Li, Zenghua Li, Leilei Si, Shisong Hou, Yu Duan   +6 more
semanticscholar   +1 more source