Damage detection of pipeline multiple cracks using piezoceramic transducers

Du, Guanglong; Huo, Linsheng; Kong, Qingzhao; Song, Gangbing

doi:10.21595/jve.2016.17040

Cited by 36 publications

(21 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Currently, the structural health monitoring technology has become a research focus [65][66][67]. The piezoceramic transducers are one of the most studied monitoring technologies [68,69], which can achieve the real-time monitoring of slurry compaction [70], internal microstructures [71] and interface debonding problems [72,73]. Considering the advantages of the piezoceramic transducer, the real-time monitoring based on it for DS-FRC members will be targeted in future research work, including the internal compactness, internal damage properties and interface debonding properties between fiber and matrix.…”

Section: Discussionmentioning

confidence: 99%

Mechanical Properties of Desert Sand-Based Fiber Reinforced Concrete (DS-FRC)

et al. 2019

View full text Add to dashboard Cite

This paper presents the study on the properties of high-ductility fiber reinforced concrete made with desert sand from China’s Mu Us desert. The workability and uniaxial tensile/compression properties of undisturbed desert sand-based fiber reinforced concrete (DS-FRC) with the change of water-to-binder ratio (W/B), sand-to-binder ratio (S/B) and desert sand replacement rate (DSRR) were experimentally investigated. Experimental results reveal that the appropriate W/B and desert sand content are conducive to the workability development of DS-FRC. The uniaxial tension/compression properties of DS-FRC are mainly affected by the W/B. Especially, the highest uniaxial tensile/compression stresses and corresponding strains are obtained at the W/B of 0.29. The S/B has similar effects on the uniaxial tensile/compression properties, and an S/B of 0.36 is the optimal ratio. In terms of the DSRR, it shows less effect on the uniaxial tensile/compression properties, even for the DSRR of 100%. The results of the tests indicate that undisturbed desert sand can be used as silica sand in high-ductility fiber reinforced concrete.

show abstract

Section: Discussionmentioning

confidence: 99%

Mechanical Properties of Desert Sand-Based Fiber Reinforced Concrete (DS-FRC)

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The loading rate is 0.5%, and the strain ratio is −1(εmax/εmin = −1). In order to study the effect of the loading strain amplitude on the Welding material sampling 30 10 20 57 66 57 20 10 6 117 117 20 Gauge length…”

Section: Test Proceduresmentioning

confidence: 99%

“…In this condition, the welds under cyclic are prone to damage accumulation, which is observed to be a process that can cause immediate failure when the load is not large enough [13]. It should be pointed out that damage accumulation has such an important impact on the performance and service life of structure [14][15][16][17][18][19], and even several studies have focused on the damage detection of the construction structure and material [20][21][22][23][24], but there is little consideration of the weld damage accumulation in the study of seismic performance of steel tubular truss structure joints [25][26][27][28], and the difference of the constitutive relation between the welding material and base metal is often neglected. For instance, the research results of Wang [29] revealed that the welding material and its parent material of 304 L steel have different hardening laws and damage evolution laws under cyclic loading.…”

Section: Introductionmentioning

confidence: 99%

Study on Hysteresis Model of Welding Material in Unstiffened Welded Joints of Steel Tubular Truss Structure

2018

View full text Add to dashboard Cite

The weld form of intersecting joints in a steel tubular truss structure changes with the various intersecting curves. As the key role of joints in energy dissipation and seismic resistance, the weld is easy to damage, as a result the constitutive behavior of the weld is different from that of the base metal. In order to define the cumulative damage characteristic and study the constitutive behavior of welded metal with the influence of damage accumulation, low-cycle fatigue tests were carried out to evaluate overall response characteristics and to quantify variation of cyclic stress amplitude, unloading stiffness and energy dissipation capacity. The results show that the cyclic softening behavior of welding materials is apparent, however, the steel shows hardening behavior with the increase of cyclic cycles, while the cyclic stress amplitude, unloading stiffness, and energy dissipation capacity of the welding materials degenerate gradually. Based on the Ramberg–Osgood model and introducing the damage variable D, a hysteretic model of welding material with the effect of damage accumulation was established, including an initial loading curve, cyclic stress-strain curve, and hysteretic curve model. Further, the evolution equation of D was also built. The parameters reflecting the damage degradation were fitted by the test data, and the simulation results of the model were proved to be in good agreement with the test results.

show abstract

“…The serious structural damages of buried pipelines caused by rockfalls attracted much attention from engineers and researchers in recent years. In addition, with the recent rapid development of damage detection and structural health monitoring technology [5][6][7], the monitoring technology of buried pipelines was also developed and it plays an important role in the safe operation of pipeline network systems. In order to further analyze the damage mechanism of buried pipelines, it is necessary to conduct experimental and numerical studies on the strain behavior of buried pipelines subjected to impact loads for the safe operation of pipelines, as well as for loss prevention and environmental protection.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on the Strain Behavior of Buried Pipelines Subjected to an Impact Load

et al. 2019

Self Cite

View full text Add to dashboard Cite

Long-distance oil and gas pipelines are inevitably impacted by rockfalls during geologic hazards such as mud-rock flow and landslides, which have a serious effect on the safe operation of pipelines. In view of this, an experimental and numerical study on the strain behavior of buried pipelines under the impact load of rockfall was developed. The impact load exerted on the soil, and the strains of buried pipeline caused by the impact load were theoretically derived. A scale model experiment was conducted using a self-designed soil-box to simulate the complex geological conditions of the buried pipeline. The simulation model of hammer-soil-pipeline was established to investigate the dynamic response of the buried pipeline. Based on the theoretical, experimental, and finite element analysis (FEA) results, the overall strain behavior of the buried pipeline was obtained and the effects of parameters on the strain developments of the pipelines were analyzed. Research results show that the theoretical calculation results of the impact load and the peak strain were in good agreement with the experimental and FEA results, which indicates that the mathematical formula and the finite element models are accurate for the prediction of pipeline response under the impact load. In addition, decreasing the diameter, as well as increasing the wall thickness of the pipeline and the buried depth above the pipeline, could improve the ability of the pipeline to resist the impact load. These results could provide a reference for seismic design of pipelines in engineering.

show abstract

Damage detection of pipeline multiple cracks using piezoceramic transducers

Cited by 36 publications

References 26 publications

Mechanical Properties of Desert Sand-Based Fiber Reinforced Concrete (DS-FRC)

Mechanical Properties of Desert Sand-Based Fiber Reinforced Concrete (DS-FRC)

Study on Hysteresis Model of Welding Material in Unstiffened Welded Joints of Steel Tubular Truss Structure

Experimental and Numerical Study on the Strain Behavior of Buried Pipelines Subjected to an Impact Load

Contact Info

Product

Resources

About