Results 61 to 70 of about 2,684,787 (187)

Investigation of mixed mode-I/II fracture problems - Part 2: evaluation and development of mixed mode-I/II fracture criteria

Fracture and Structural Integrity, 2015
In this study, experimental and numerical results of compact tension shear (CTS) specimen and a new specimen type under in-plane mixed mode (Mode-I/II) loading conditions are compared with existing inplane mixed mode fracture criteria to investigate and ...
A. O. Ayhan, O. Demir
doaj  

A Fracture Mechanics-based Method for Prediction of Cracking of Circular and Elliptical Concrete Rings under Restrained Shrinkage [PDF]

, 2014
This article has been made available through the Brunel Open Access Publishing Fund.A new experimental method, utilizing elliptical ring specimens, is developed for assessing the likelihood of cracking and cracking age of concrete subject to restrained ...
Dong, W, Wu, Z, Zhou, X, Zhou, Xiangming, Dong, Wei, Wu, Zhimin   +5 more
core   +1 more source

Criteria of Ductile Fracture Strain

Bulletin of JSME, 1972
Two criteria of ductile fracture strain are suggested. From the theory of plasticity for porous materials, the following criterion of fracture for a triaxial state of stress is obtained: [numerical formula] where ee_qf is the equivalent fracture strain, σm the mean stress, σe_q the equivalent stress, a0 and b0 are constants.
openaire   +2 more sources

Criteria for well and layer selection for fracturing–flooding practice in offshore low-permeability reservoirs based on numerical simulation

Frontiers in Earth Science
The success in the pilot testing of offshore fracture–flooding provides a new technical idea for the development of low-permeability and under injection oilfields.
Mingguang Tang, Feng Wei, Shuai Ma, Xuan Deng, Yuli Zhang, Jinwei Wang, Jinwei Wang, Tiange Xing, Tiange Xing, Runwei Qiao, Runwei Qiao   +10 more
doaj   +1 more source

Metallurgical aspects of rock bolt environment fracture

, 2005
The aim of this research was to understand the Stress Corrosion Cracking (SCC) of rock bolts. The laboratory tests have produced fracture surfaces similar to those from service.
Villalba, Ernesto, Villalba, E., Gamboa, E., Atrens, Andrej, Gamboa, Erwin, Atrens, A.   +5 more
core  

Characterization of uncoupled ductile fracture criteria for 0Cr17Ni4Cu4Nb stainless steel under different stress states

Journal of Materials Research and Technology
Ductile fracture behavior of 0Cr17Ni4Cu4Nb stainless steel was evaluated under six distinct stress states (Flat shear, Flat with a circular hole, Smooth round bar, Flat notched tension, Notched round bar R3.0, Notched round bar R1.5) using eight widely ...
Xiang Cheng, Ruomin Wang, Zhongkang Zhou, Yang Yang, Xiaolu Chen, He Wu, Xiaolei Chen, Wenchen Xu   +7 more
doaj   +1 more source

Fracture-based forming limit criteria for anisotropic materials in sheet metal forming

, 2017
This paper is concerned with modeling of fracture-based forming limit criteria for anisotropic materials in sheet metal forming to predict the sudden fracture in complicated forming processes.
Y Lou (13361421), YS Kang (15883661), SJ Lim (15883619), H Huh (13285008), MH Seo (15883664), N Park (7770590)   +5 more
core  

Randomized controlled trials investigating proximal humerus fractures lack consensus in inclusion criteria

JSES Reviews, Reports, and Techniques
Background: This study aimed to investigate inclusion and exclusion criteria for subjects of randomized control trials (RCTs) studying operative management of proximal humerus fractures (PHFs) and to define the presence or absence of objectivity and ...
Cailan L. Feingold, BS, Justin Castonguay, BA, Eric H. Lin, BA, Andrew B. Barcenas, BS, Jacob L. Kotlier, MD, Meng-Yung Ong, BS, Joseph Mixa, BS, Ioanna K. Bolia, MS, MD, PhD, Joseph N. Liu, MD   +8 more
doaj   +1 more source

3D printing and acute maxillofacial trauma: an overview of the literature

3D Printing in Medicine
Background The consequences of maxillofacial injuries are functionals and aesthetics. The initial treatment must lead to consolidation without any sequelae (complete healing with no clinical symptoms).
E Bertin, C Coussens, E Brumpt, C Meyer, A Louvrier   +4 more
doaj   +1 more source

A modified 3D mean strain energy density criterion for predicting shale mixed-mode I/III fracture toughness

Journal of Rock Mechanics and Geotechnical Engineering
The fracture toughness of rocks is a critical fracturing parameter in geo-energy exploitation playing a significant role in fracture mechanics and hydraulic fracturing.
Kun Zheng, Chaolin Wang, Yu Zhao, Jing Bi, Haifeng Liu   +4 more
doaj   +1 more source