Results 81 to 90 of about 55,119 (207)

PP-wave reflection coefficient for vertically cracked media: Single set of aligned cracks

open access: yesJournal of Applied Geophysics, 2023
The main goal of this paper is to analyse the influence of cracks on the azimuthal variations of amplitude. We restrict our investigation to a single set of vertical, circular, and flat cavities aligned along a horizontal axis. Such cracks are embedded in either isotropic surroundings or transversely isotropic background with a vertical symmetry axis ...
openaire   +2 more sources

Research on Fatigue Damage and Crack Propagation of Pre-Cut Seam Asphalt Mixture Composite Beams

open access: yesZhongwai Gonglu
This study investigated the influence of reflective cracking on the fatigue performance of asphalt pavements subjected to milling and resurfacing under varying service conditions.
HUANG Dengke, LIU Hongfu
doaj   +1 more source

Growth of phase-pure, crack-free single crystals and large-grained polycrystals of molybdenum disilicide [PDF]

open access: yes, 1970
High purity molybdenum disilicide crystals are prepared by zone melting sintered compacts. This method yields single crystals or polycrystals free from macrocracks which allow better measurement and evaluation of mechanical ...
Rossetti, M.
core   +1 more source

Distribution characteristics and evolution laws of liner cracks in underground caverns for compressed air energy storage

open access: yesYantu gongcheng xuebao
The liner of underground gas storage cavern is used to transfer the internal pressure to the surrounding rock, and at the same time serves as the base of flexible sealing layer.
JIANG Zhongming 1, 2, GAN Lu 1, ZHANG Dengxiang 1, 3, XIAO Zhezheng 1, LIAO Junhui 1
doaj   +1 more source

The reflective cracking in thin surfacings

open access: yes, 1998
This paper shows a laboratory study on reflection cracking in thin surfacings, where the reflective cracking take an important point in pavement life, undertaken with the Reflective Cracking Device and the Crack Activity Meter. The Crack Activity Meter was used to measure load associated differential vertical and horizontal movement between the two ...
Pais, Jorge C.   +3 more
openaire   +1 more source

Mechanical Response and Anti-Reflective Crack Design in New Asphalt Overlays on Existing Asphalt Overlaying Composite Portland Cement Pavement

open access: yesBuildings
A detection and evaluation system containing a two-level index of structural integrity and bearing capacity was constructed based on ground-penetrating radar (GPR) and a falling weight deflector (FWD).
Jianping Gao   +2 more
doaj   +1 more source

Fracture characteristics of asphalt mixtures containing asphalt millings with geosynthetic fragments [PDF]

open access: yesE3S Web of Conferences
The increasing cost of asphalt and environmental concerns have created a greater interest in exploring the possibility of incorporating higher percentages of reclaimed asphalt pavement (RAP) materials in asphalt mixtures.
Saxena Ashray   +2 more
doaj   +1 more source

Continued Field Evaluation of Precutting for Maintaining Asphalt Concrete Pavements with Thermal Cracking [PDF]

open access: yes, 2017
In continuation of a previously completed project entitled Evaluate Presawn Transverse Thermal Cracks for Asphalt Concrete Pavement, this project was a further effort to understand important variables in the thermal cracking process through continued ...
Liu, Jenny   +2 more
core  

Numerical investigation of pre-flawed FGM tubes repaired with different composite jackets under sequential gaseous detonation loading

open access: yesResults in Engineering
Investigation on the structural response of pre-flawed functionally graded material (FGM) cylindrical tubes submitted to sequential detonation loading is the main contribution of this study. Analyses are made for repaired and unrepaired tubes using three
Mohammad Malekan, Carlos A. Cimini, Jr.
doaj   +1 more source

Study on Composition Design and Performance Characteristics of Warm-Mixed Rubber–Asphalt Mixture for Cold-Region Stress Absorption Layers

open access: yesBuildings
Reflection cracks significantly compromise the service life of half-rigid asphalt pavements in cold regions. This study introduces SAKIII warm-mixed rubber–asphalt mixture (SAKIII WMRA Mix) as a stress absorption layer to address this issue.
Rui Pan, Jifeng Chang, Yu Chen
doaj   +1 more source

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