Prefailure Deformation of Nailed Deep Excavations under Surcharge by Centrifuge Model Test by S. Mohammad. Shoari Shoar, Ali A. Heshmati, Hossein Salehzadeh

“…To study prefailure deformations in nailed deep vertical excavations under various surcharges, four centrifuge tests were used to explain the lateral deformation of facing, the fracture mechanism of cement facing, and the settlement profile of the ground surface. …”
Get full text

Application of Acoustic Emission on the Characterization of Fracture in Textile Reinforced Cement Laminates by J. Blom, J. Wastiels, D. G. Aggelis

“…The main objective is to link specific AE parameters to the fracture mechanisms that are successively dominating the failure of this laminated material. …”
Get full text

Study on the Creep Behavior of a Ni3Al-Based Single Crystal Alloy at 850°C/450 MPa by Liwu Jiang, Yu Yang, Meiling Wu, Min Cai

“…Therefore, the fracture mechanism of the single crystal alloys with [001] and [111] orientations was ductile fracture. …”
Get full text

Experimental Research on Brittleness and Rockburst Proneness of Three Kinds of Hard Rocks under Uniaxial Compression by Rongchao Xu, Yiding Jin, Yumin Zhang

“…The acoustic emission evolution characteristics of the three rocks during uniaxial compression were analyzed, and the differences of fracture mechanism of the three rocks were compared. The results show that (1) based on the brittleness evaluation index, basalt is the most brittle rock, followed by granite, and marble is the weakest; (2) based on the rockburst proneness evaluation index, combined with the macroscopic failure phenomenon and morphology of the samples, the rockburst proneness of basalt is the strongest, followed by granite, and marble is the weakest; (3) there exists a positive correlation between rockburst proneness and brittleness, and the fitting results show that they are approximately exponential; and (4) brittleness has an important influence on the rock fracture mechanism. …”
Get full text

The Effect of Fracture Surface Roughness and Mechanical Aperture on the Onset of Nonlinear Flow Behaviors in 3D Self-Affine Rough Fractures by Kangsheng Xue, Xiaobo Liu, Xufeng Yan, Xiaolou Chi

“…The results show that when the fracture mechanical aperture is 0.2 mm, the impact of fracture surface roughness on fluid flow is considerable, while this effect decreases obviously with the increase of fracture mechanical aperture. …”
Get full text

Using Continuum-Discontinuum Element Method to Model the Foliation-Affected Fracturing in Rock Brazilian Test by Qunlei Zhang, Zihan Zhi, Chun Feng, Ruixia Li, Jinchao Yue, Junyu Cong

“…In this study, the continuum-discontinuum element method (CDEM) was used to investigate the tensile fracture mechanism of rock materials. An isotropic rock disk model and models considering different foliation inclinations were established, and three schemes were used to simulate the rock fracturing in Brazilian test. …”
Get full text

A Fractographic Study of Bending/Torsion Fatigue Failure in Metallic Materials with Protective Surface Layers by Karel Slámečka, Petr Šesták, Tomáš Vojtek, Marta Kianicová, Jana Horníková, Pavel Šandera, Jaroslav Pokluda

“…The studied materials exhibited a wide range of fracture mechanisms depending on the microstructure and applied mechanical loading.…”
Get full text

Different influences of Mo and Mo2C additions on microstructure and properties of TiC-based cermets by Xiao-Dong Kang, Guo-Hua Zhang, Kuo-Chih Chou

“…Sintered samples with simpler fracture morphologies had smaller fractal dimensions, whereas those with more intricate surface features exhibited larger fractal dimensions, reflecting complex fracture mechanisms and higher TRS.…”
Get full text

The effect of propagation saw test geometries on critical cut length by B. Bergfeld, K. W. Birkeland, V. Adam, V. Adam, P. L. Rosendahl, A. van Herwijnen

“…For slabs with an artificial layering, the uniform load–model predictions reveal deviations from the fracture mechanical model, whereas the layered model was still in excellent agreement. …”
Get full text

Effect of the Reinforce Process on the Fatigue Fracture Properties of Aeronautical Polymethyl Methacrylate by Wei Shang, Xiao-jing Yang, Xin-hua Ji, Zhong-xian Liu

“…The main purpose of the present work is to investigate fatigue fracture mechanical properties of aeronautical directional polymethyl methacrylate (PMMA) which has been treated by the directional tensile technology. …”
Get full text

Mechanical property and fracture characteristics of carbon fiber reinforced aluminum matrix composites prepared by friction stir welding by Y.J. Lu, Q.L. Liu, Y.D. Liu, C. Yu, H.X. Chen, Y.X. Chen, Y.J. Liu

“…The carbon fibers were found to be the primary load-bearing sites, with fracture mechanisms involving fiber breakage and fiber pull-out. …”
Get full text

Full-Field Strain Characterizations and Fracture Process of Rock Blasting Using a Small-Scale Double-Hole Bench Model by Jun Yang, Xin Liu, Zhenyang Xu, Hongliang Tang, Qi Yu

“…A small-scale double-hole bench model is designed with granite to study the fracture mechanism of rock blasting. By combining high-speed camera and digital image correlation, the full-field strain characterization and fracture process of the specimen bevel surface are investigated. …”
Get full text

Impact behaviour and fractography of 6061 alloy with Trace addition of Sn by Monoj Baruah, Anil Borah

“…Additionally, the fracture mechanism was also studied in the AC and PAR state. …”
Get full text

Effect of Filler Content on the Performance of Epoxy/PTW Composites by Mudradi Sudheer, Ravikantha Prabhu, Kandavalli Raju, Thirumaleshwara Bhat

“…Scanning electron microscope (SEM) images of tensile fractured surfaces and worn-out surfaces of selected samples revealed different fracture mechanisms.…”
Get full text

A Study of the Creep-Fatigue Damage Mechanism of a P92 Welded Joint Using Nanoindentation Characterization by Zhangmin Jin, Zhihui Cai, Xuecheng Gu, Zhiqiang Wang, Yiwen Han, Ting Yu, Yuxuan Song, Zengliang Gao, Zhongrui Zheng

“…Relying on the scanning electron microscope, the fracture mechanism of P92 steel gradually changes from fatigue-dominating to creep-fatigue interactive damage with the increasing strain rate. …”
Get full text

3D XCT Mesostructure Characterization and Image-Based Discrete Element (DE) Modelling of Failure Patterns in Coal Gangue Particles (CGPs) by K. H. Zheng, B. J. Qiu, J. P. Li, K. D. Gao

“…The approximate location of gangue phase is the key parameter that should be taken into account to study failure patterns as well as fracture mechanism of the heterogeneous rock materials. …”
Get full text

Damage Evolution and Constitutive Model of Marble under Dynamic Loading by Song Xie, Ziyun Li, Qianghui Song, Peiyong Wang, Kaixi Xue, Dongyan Liu

“…The dynamic constitutive model of marble was established with the fracture mechanical parameters (brittleness index), and the calculated curves were compared with the experimental curves. …”
Get full text

Effects of Voids on Concrete Tensile Fracturing: A Mesoscale Study by Lei Xu, Yefei Huang

“…The effects of voids on the fracture mechanism of concrete under uniaxial tension are first detailed, followed by an extensive investigation of the effects of void volume fraction on concrete tensile fracturing. …”
Get full text

Fractal Characteristic of Rock Cutting Load Time Series by Hongxiang Jiang, Changlong Du, Songyong Liu, Kuidong Gao

“…The box-counting dimension can be an evaluation index to assess the extent of rock crushing or cutting. Rock fracture mechanism would not be changed due to water-jet in front of or behind the cutter, but it would be changed when the water-jet was in cutter.…”
Get full text

Mechanical properties and failure analysis of PLA/copper composites fabricated by fused deposition modelling by Kumar R.V., Kumar K.R., Soms N.

“…The composite samples were subjected to failure analysis to determine the fracture mechanisms. Both brittle and ductile failure mechanisms were observed in the samples, which are influenced by the process parameters affecting the layered composite and porosity.…”
Get full text