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The reason most structures fail isn’t due to shoddy material or violent impact. It’s something far simpler, smaller and even dull: prolonged, low-amplitude fatigue.
Global forest network cracks the case of tropical biodiversity（图）
Global forest network cracks tropical biodiversity
2017/7/24
If aliens sent an exploratory mission to Earth, one of the first things they’d notice — after the fluffy white clouds and blue oceans of our water world — would be the way vegetation grades from exube...
A FEASIBILITY STUDY ON USE OF GENERIC MOBILE LASER SCANNING SYSTEM FOR DETECTING ASPHALT PAVEMENT CRACKS
Mobile Laser Scanning Point Cloud Pavement Crack Automated Detection Urban Road
2016/7/5
This study aims to automatically detect pavement cracks on urban roads by employing the 3D point clouds acquired by a mobile laser scanning (MLS) system. Our method consists of four steps: ground poin...
DETECTION OF CRACKS IN PAVED ROAD SURFACE USING LASER SCAN IMAGE DATA
Paved Road Surface Crack Detection Laser Scan Image Background Subtraction Image Segmentation
2016/7/5
In the current study, we developed a methodology for detecting cracks in the surface of paved road using 3D digital surface model of road created by measuring with three-dimensional laser scanner whic...
Automated Pavement Imaging Program (APIP) for Pavement Cracks Classification and Quantification - a Photogrammetric Approach
APIP Image processing Photogrammetry Pavement distress Cracks Potholes Delaminatons
2015/12/16
The evaluation of pavement conditions is an important part of pavement management. Traditionally, pavement condition data are gathered by human inspectors who walk or drive along the road to assess th...
Frost cracks and their effect on the stability of birch stands in the Krušné hory Mts.
Betula pendula Roth frost cracks icing
2015/3/3
Frost cracks which originated in birch due to bending during long-term icing in winter 1995/1996 became
the place of entrance for the attack of birch stems by Piptoporus betulinus (Bull. ex Fr.) Kar...
The propagation speed of the cracks in coal body containing gas
Coal body Gas Crack Propagation speed
2012/4/12
The destabilization of coal body containing gas that is caused by the quick propagation of the cracks in coal body containing gas and the high pressure gas, which result into coal and gas outburst. Th...
Eigenfrequency correction of Bloch-Floquet waves in a thin periodic bi-material strip with cracks lying on perfect and imperfect interfaces
Bloch-Floquet waves thin periodic bi-material strip Mathematical Physics
2011/9/23
Abstract: We analyse an asymptotic low-dimensional model of anti-plane shear in a thin bi-material strip containing a periodic array of interfacial cracks. Both ideal and non-ideal interfaces are cons...
Weight function in a bimaterial strip containing an interfacial crack and an imperfect interface. Application to Bloch-Floquet analysis in a thin inhomogeneous structure with cracks
Bloch-Floquet waves boundary layer crack imperfect interface weight function
2011/9/22
Abstract: We define a weight function in a bi-material strip containing a semi-infinite crack and an imperfect interface and analyse a problem of anti-plane shear. We then present an asymptotic algori...
Giant strain-sensitivity of acoustic energy dissipation in solids containing dry and saturated cracks with wavy interfaces
strain-sensitivity solids containing dry and saturated cracks
2011/9/2
Mechanisms of acoustic energy dissipation in heterogeneous solids attract much attention in view of their importance for material characterization, nondestructive testing, and geophysics. Due to the ...
Singular stress fields for transverse cracks in multi-layer satin woven CFRP composite laminates under cryogenic conditions
Fracture Mechanics Finite Element Method Composite Material
2010/11/25
The objective of this research is to analyze the singular stresses at the tips of cracks in multi-layer woven carbon fiber reinforced polymer (CFRP) composite laminates under tension at cryogenic temp...
Micro-seismic precursory cracks prior to rock-fall on coastal chalk cliffs:a case study at Mesnil-Val,Normandie,NW France
Micro-seismic precursory cracks rock-fall coastal chalk cliffs
2009/12/8
Erosion of rock cliffs has been considered to be relatively unpredictable. This perceived stochastic nature of the erosional processes often occurs through collapses along fractures in the rock-mass. ...
An Axisymmetric Infinite Cylinder with Two Cracks and a Rigid Inclusion
Axisymmetric Infinite cylinder Penny-shaped crack Rigid inclusion Stress intensity factor
2009/10/9
This work considers the analysis of a cracked infinite cylinder with a rigid inclusion. The material of the cylinder is assumed to be linearly elastic and isotropic. The ends of the infinite cylinders...
Cracks in high-manganese cast steel
Hadfield cast steel Hot cracking Solidification brittleness
2011/4/1
The reasons which account for the formation of in service cracks in castings made from Hadfield steel were discussed. To explain the source of existence of the nuclei of brittle fractures, the proper...
A study on fatigue crack propagation in longitudinal stiffeners of ship structures-An analysis of multiple cracks propagation in 3-dimensional stiffened panel structures
fatigue crack propagation longitudinal stiffeners ship structures 3-dimensional stiffened panel structure
2009/4/30
In ship structures, fatigue cracks may initiate at the intersection between face plates of the longitudinals and web stiffeners attached to the transverse girders. These cracks may propagate in web pl...