Zobrazeno 1 - 10
of 1 219
pro vyhledávání: '"dynamic impact"'
Autor:
Michał Rogala, Jakub Gajewski
Publikováno v:
Advances in Sciences and Technology, Vol 18, Iss 6, Pp 110-120 (2024)
Thin-walled structures that serve as energy absorbers are widely used in the automotive industry, and it is well-known that they deform in a specific way under dynamic loading, forming plastic hinges along the yield line. The dynamic impact of these
Externí odkaz:
https://doaj.org/article/4f5b56f319844b3e87c051342fa2b598
Publikováno v:
Defence Technology, Vol 36, Iss , Pp 47-63 (2024)
The high variability of shock in terrorist attacks poses a threat to people's lives and properties, necessitating the development of more effective protective structures. This study focuses on the angle gradient and proposes four different configurat
Externí odkaz:
https://doaj.org/article/bbb66ab6df9848a39913b2ee13bbce14
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 16, Iss 4, Pp 1153-1174 (2024)
The tensile-shear interactive damage (TSID) model is a novel and powerful constitutive model for rock-like materials. This study proposes a methodology to calibrate the TSID model parameters to simulate sandstone. The basic parameters of sandstone ar
Externí odkaz:
https://doaj.org/article/90677b7f603a44f688116adb1ca89146
Publikováno v:
Frontiers in Materials, Vol 11 (2024)
This paper investigated the dynamic mechanical properties of CO2-cured foam concrete under varying conditions, focusing on the effects of foam admixture and fiber reinforcement. The study tends to enrich the knowledge regarding the performance of CO2
Externí odkaz:
https://doaj.org/article/f90778b61a394248b2f11bc68c6f48d4
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 3866-3878 (2024)
Researchers have been challenged to improve the protective performance of composite armor materials. Herein, pure Al and Cu foils were used as raw materials and composited concurrently using ultrasonic additive manufacturing technology to study their
Externí odkaz:
https://doaj.org/article/1021c19752344b708c9a02fbaa8cb847
Autor:
Yong YUAN, Zhongshun CHEN, Xiaokang LIANG, Haisheng SHEN, Lei ZUO, Chaogui MENG, Shengzhi WANG
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 2, Pp 63-78 (2024)
The structural transformation of coal and rock mass is a common core scientific problem to solve many technical problems in coal mines. Carbon dioxide phase change blasting has become one of the effective methods for coal and rock mass cracking due t
Externí odkaz:
https://doaj.org/article/e73b12e142ae4e8e8c2465349d5033bd
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03645- (2024)
There has been a growing interest in utilizing 3D printing technology for military and civil defense engineering, especially in enhancing the resilience of infrastructure against impacts. Due to its distinctive additive manufacturing process, 3D prin
Externí odkaz:
https://doaj.org/article/5583db2e5373466d881ec6036d438c27
Publikováno v:
Geomatics, Natural Hazards & Risk, Vol 15, Iss 1 (2024)
AbstractThe control of broken rock mass roadways has always been a difficult problem in metal hard rock mines. In this paper, the mechanical mechanism of anchor net support is characterized and simulated through the physical model test of the prestre
Externí odkaz:
https://doaj.org/article/5c32347704d4470ba865e287801e91c2
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
To enhance the impact resistance of penetration fuze, this paper investigates the response of fuze buffer materials to stress waves and develops a model for stress wave transmission inside the fuze. The stress concentration impacts of different cell
Externí odkaz:
https://doaj.org/article/a2d0006328304d6fa3b85f22a0bd21ae
Publikováno v:
Nuclear Engineering and Technology, Vol 55, Iss 12, Pp 4647-4658 (2023)
In this paper, elastic-plastic fracture mechanics analysis is performed to determine the critical crack sizes of the multipurpose canister (MPC) manufactured using austenitic stainless steel under dynamic loading conditions that simulate drop acciden
Externí odkaz:
https://doaj.org/article/f4910b7175aa443896aa890ae4c1e9e6