Zobrazeno 1 - 10
of 4 276
pro vyhledávání: '"Ls-dyna"'
Numerical and experimental analysis of the ballistic performance of soft bulletproof vests for women
Publikováno v:
AUTEX Research Journal, Vol 24, Iss 1, Pp 17-25 (2024)
This article presents a comprehensive numerical and experimental analysis of the ballistic performance of soft bulletproof vests designed for women. The study involved a woman aged between 24 and 28 with a breast size of 85C. Two ballistic packages m
Externí odkaz:
https://doaj.org/article/0aca94f8affe4ecf9d7244fd8e296872
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract To investigate the propagation mechanisms of stress waves and the characteristics of crack distribution in tunnel structures subjected to explosive effects, an experimental model simulating rock mass using cement mortar was employed. Blastin
Externí odkaz:
https://doaj.org/article/62fd994ae2a147d082a734f6d9b72c3f
Publikováno v:
Defence Technology, Vol 40, Iss , Pp 35-47 (2024)
This paper explores the performances of a finite element simulation including four concrete models applied to a full-scale reinforced concrete beam subjected to blast loading. Field test data has been used to compare model results for each case. The
Externí odkaz:
https://doaj.org/article/159b63ca62c04604bff8da618ad7ddf6
Publikováno v:
Journal of Engineering and Applied Science, Vol 71, Iss 1, Pp 1-26 (2024)
Abstract Today, considering the increased cases of terroristic operations, structural design engineers are starting to acknowledge blast-induced loads alongside other design parameters. Since a blast-induced load exhibits a much shorter period than t
Externí odkaz:
https://doaj.org/article/dfa4dc3996c6414aa1bc1186bc66922b
Publikováno v:
Discover Materials, Vol 4, Iss 1, Pp 1-16 (2024)
Abstract The present study explores the comprehensive composite material selection methodology of a tennis racket involving coupled Multi-Criteria Decision-Making (MCDM) and numerical analysis. Initially all the possible material alternatives from th
Externí odkaz:
https://doaj.org/article/661ca63f041847979e03614c411beecd
Publikováno v:
FirePhysChem, Vol 5, Iss 1, Pp 36-44 (2025)
In order to evaluate the ballistic performance of ceramic/fabric composite panels developed using 99.5 % alumina, Kevlar® and carbon fiber fabrics; a series of experiments were performed on the physical samples. The composite-projectile interaction
Externí odkaz:
https://doaj.org/article/d1d30a4dbb3f4b83a9cbf33f4faf95a9
Publikováno v:
Discover Applied Sciences, Vol 6, Iss 10, Pp 1-15 (2024)
Abstract In the current study, an experimental setup consisting of smoothbore 30-caliber powder gun was employed to launch spherical projectiles (3 g/ϕ9) in the ballistic range of velocities from 500 to 1700 m/s and obliquity (0, 33 and 65°), impac
Externí odkaz:
https://doaj.org/article/61da94d37b3544e885efc7cb6608b9b6
Autor:
Wei Li, Zhizhen Zhang, Yeqi Teng, Hao Wang, Cao Man, Menghan Ren, Xiaoji Shang, Linming Dou, Feng Gao
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 8, Pp 3401-3421 (2024)
Abstract Deep coal‐rock formations are subjected to complex stress environments characterized by high static stresses and dynamic disturbances. To study the damage, fracture, and energy evolution characteristics of coal‐rock under dynamic–stati
Externí odkaz:
https://doaj.org/article/40834baec128461d96f4b1588efdda1e
Publikováno v:
矿业科学学报, Vol 9, Iss 4, Pp 483-492 (2024)
The open field subsequent filling method in segmented drilling stage is an efficient mining method for inclined medium thick ore bodies.However, blasting, filling and stope stability show complex relationships, causing surface subsidence, roof and fl
Externí odkaz:
https://doaj.org/article/9489d6a757964ff8bcd9eaf86da65f62
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03805- (2024)
Explosive blasting in tunnel construction may provoke damage to the surrounding rocks, leading to economic and safety concerns. While studies on rock fragmentation mechanisms exist, the innovative mechanism of shaped charge hydrostatic blasting remai
Externí odkaz:
https://doaj.org/article/71549a82cba742c4ba6f08bc0fa5328c