Results 41 to 50 of about 161,530 (168)

Energy Evolution Analysis and Brittleness Evaluation of High-Strength Concrete Considering the Whole Failure Process

Crystals, 2020
In this work, we aimed to solve the problems that exist in the brittleness evaluation method of high-strength concrete through a triaxial compression test of C60 and C70 high-strength concrete.
Ruihe Zhou, Hua Cheng, Mingjing Li, Liangliang Zhang, Rongbao Hong   +4 more
doaj   +1 more source

Crack Propagation in a Toughened Epoxy Adhesive under Repeated Impacts

Shock and Vibration, 2011
Adhesives are being increasingly used in structural applications, especially in aerospace, automotive and naval structures, making their structural integrity an important issue.
Ian A. Ashcroft, Vadim V. Silberschmidt, Benjamin Echard, Juan Pablo Casas Rodriguez   +3 more
doaj   +1 more source

Mechanical properties and damage constitutive model of coal with different water content based on energy principle

Meitan kexue jishu
In order to explore the energy evolution law and damage evolution characteristics of coal and rock mass in the process of deformation and failure under different water content, the uniaxial compression test of coal and rock mass in Shuangma No.1 Coal ...
Yongjiang YU, Jiaming LIU, Yuntao YANG, Zhiyuan SONG, Shangqing ZHAO   +4 more
doaj   +1 more source

Delamination of multilayered non-linear elastic shafts in torsion [PDF]

FME Transactions, 2020
Delamination cracks in multilayered circular shafts loaded in torsion are analyzed in terms of the strain energy release rate. It is assumed that the material in each layer has non-linear mechanical behaviour that is treated by the Ramberg-Osgood ...
Rizov Victor
doaj  

Experimental Study of Influence of Support Failures on Rockbursts under True-Triaxial Condition

Advances in Civil Engineering, 2018
Supports can effectively reinforce the surrounding rock after excavation in underground engineering. However, a support failure may cause an extremely intense rockburst. Hence, the influences of support failures, including support forces, support failure
Guoshao Su, Tianbin Li, Jianqing Jiang, Guoqing Chen, Jinghai Mo   +4 more
doaj   +1 more source

A relation between crack surface displacements and the strain energy release rate [PDF]

International Journal of Fracture Mechanics, 1969
The relationship between the strain energy release rate, G, and the displacements of the surfaces of an extending crack in an elastic, tensile member is examined. It is shown that G can be expressed in terms of the volume of the deformed crack provided that any stresses applied to crack surfaces are uniform.
openaire   +2 more sources

Study on Mechanical Properties and Damage Evolution Law of Secondary Destruction Induced by Simultaneous Unloading after the Peak of the Curve of Sandstone

Shock and Vibration, 2018
The research adopts the French ROCK600-50 three-axis experiment instrument and SH-II system to evaluate the acoustic emission (AE) peak of the rear axle of yellow sandstone by carrying out the confining pressure synchronous unloading experiment, and ...
Xiao Fukun, Liu Gang, Cheng Qianlong
doaj   +1 more source

Influence of Content of Toughening Thermoplastic on Mode-Ⅰ Interlaminar Fracture Toughness of Epoxy Composite Reinforced by CCF800H Carbon Fiber

Cailiao gongcheng, 2017
The toughened composite was prepared by the domestic high strength medium modulus carbon fiber (CCF800H) reinforced epoxy resin matrix. The influence of different content of toughening thermoplastic within epoxies on the mode-Ⅰ interlaminar fracture ...
ZHONG Xiang-yu, ZHANG Dai-jun, BAO Jian-wen, LI Wei-dong   +3 more
doaj   +1 more source

STUDY ON MODE III FRACTURE TOUGHNESS OF ADHESIVE BONDED STRUCTURE

Jixie qiangdu
Failure mode of bonded structure under different adhesive types and different adhesive thickness was discussed by designing the edge ring crack torsion test which can truly reflect mode III fracture toughness.
ZHANG ChaoFeng, XIE ChunLi, WANG WeiLi, ZHU JiaJia   +3 more
doaj  

Research on evolution law of coupled macro-micro damage release rate of fractured limestone under uniaxial compression test

Yantu gongcheng xuebao
Limestone region is characterized by a complex and extensive karst network, featuring a variety of fracture shapes that can be categorized into four primary types: cracks, elliptical holes, mushroom-like holes, and dumbbell-like holes.
WANG Runqiu 1, WANG Guilin 1, 2, 3, ZHANG Liang 4, SUN Fan 5
doaj   +1 more source