Reliability Calculation of Large-scale Complex Initiation Network

Li, Xinjian; Yang, Jun; Yan, Bingqiang; Zheng, Xing

doi:10.1088/1755-1315/113/1/012002

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Safety and reliability are paramount for any blasting system, and efcient shock tube initiation is an important factor in this regard [8][9][10][11]. Initiation failure of the shock tube results in unexploded charges at the blast site, with inevitable safety concerns.…”

Section: Introductionmentioning

confidence: 99%

“…Studies of modeling the blast loading from a detonator to a large number of shock tubes are difcult to fnd. In general, numerous attempts with varying degrees of success have been made to model the response of simple structures such as varying shapes (circle and rectangular shock tubes) of shock tubes [11] and plates [19,20], and varying types of clamped structures [8] subjected to either a uniform or local blast and impact loads using fnite element models. Bonorchis and Nurick [19] used the ABAQUS model in conjunction with spatial and temporal pressure impulse profles resulting in the detonation of explosives from AUTODYN simulations to simulate the structural response of the target subjected to blast loads.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Initiation Modes in the Bundle-Series Initiation of a Large Number of Shock Tubes by Detonators

Choe¹,

Han²,

Kim³

2023

Shock and Vibration

View full text Add to dashboard Cite

The bundle-series initiation is currently used as the method for simultaneously transmitting blast signals from a detonator to a large number of shock tubes for blasting using shock tubes and its initiation modes affect the ability and probability of signal transmission. A numerical study of the influence of initiation modes on the pressure impulse generated by detonators and transmitted to a large number of shock tubes has been undertaken with ANSYS AUTODYN code and validated through experimental results of signal transmission probability of shock tubes. Numerical simulations and experiments used lateral and frontal bundle-series initiation modes for a large number of shock tubes. For a bundle of many shock tubes, peak pressures of pressure impulses affected within all shock tubes beside the first layer around a detonator, and signal transmission probabilities were higher for frontal bundle-series initiation mode than for lateral bundle-series initiation mode. The magnitude of a numerically obtained pressure impulse to a bundle of shock tubes shows a good correlation with the experimentally obtained signal transmission probability of shock tubes. Finally, the results are employed in the application of a frontal bundle-series initiation mode with the simultaneous bundle-series initiating a large number of shock tubes for blastings in mining and construction.

show abstract

Section: Introductionmentioning

confidence: 99%