Results 41 to 50 of about 434,051 (343)

Association Between Atherosclerosis in Carotid Artery and Elastic Modulus of Brachial Artery [PDF]

Journal of Tehran University Heart Center, 2007
Background: Common carotid arterial stiffness can be assessed during carotid arterial ultrasonography, but its association with brachial stiffness, a well-defined cardiovascular risk factor, has not been clarified.
Manijhe Mokhtari-Dizaji, Tavvos Rahmani-Cherati, Masome Gity   +2 more
doaj   +2 more sources

Measurement of micro-region elastic anisotropy in textured metal by laser-ultrasonics

AIP Advances, 2020
Measurement of elastic anisotropy in textured polycrystalline metals is very difficult, especially the nondestructive testing of the elastic anisotropy of micro-regions.
Rongrong Ma, Zhixin Li, Weibo Gu, Luning Wei, Yingbo Wang, Ying Wang, Jinrong Zuo, Anmin Yin   +7 more
doaj   +1 more source

Micro-Raman structural responses of nano-mechanical properties of different coal grades

Meikuang Anquan, 2022
The mechanical properties of coal are heterogeneous and in multi-scale. Understanding the coal mechanical properties and structure in nano-scale is the key to know the fracturing transformation and crack expansion mechanisms of coal reservoirs.
HAN Yating, SUN Beilei
doaj   +1 more source

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

Advanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan, Manjusri Misra, Alexander Bardelcik, Stefano Gregori, Amar K. Mohanty   +4 more
wiley   +1 more source

A dynamic damage constitutive model considering the effect of joint inclination on the modulus of elasticity of slates

Scientific Reports
The dynamic damage constitutive model has limitations and needs to reflect the quantitative relationship between the elastic modulus and joint inclination angle of the slate.
Tingting Gu, Tiejun Tao, Xingchao Tian, Caijin Xie, Qin Wang, Jian Jia   +5 more
doaj   +1 more source

Study on the size effect of rock elastic modulus considering the influence of joint roughness

Frontiers in Materials
The elastic modulus of rocks is a measure of the ability of rocks to resist elastic deformation. It is related to the size of rocks and can effectively measure the internal physical and mechanical strength of rocks.
Gaojian Hu, Bin Wang, Wenbing Guo, Yuan Xing, Junxia Zhou, Lanchang Zha, Shiyu Meng   +6 more
doaj   +1 more source

Comparative Study on the Test Method for Tensile Elastic Modulus of Rock Materials

Advances in Civil Engineering, 2019
Rock material has different mechanical behaviors under compressive and tensile loading. Correspondingly, there are two types of elastic modulus: compressive elastic modulus Ec and tensile elastic modulus Et, respectively.
Yan Zhang, Dawei Yu
doaj   +1 more source

Experimental study on LBL beams [PDF]

MATEC Web of Conferences, 2019
Six specimens were made and tested to study the mechanical properties of LBL beams. The mean ultimate loading value is 68.39 MPa with a standard deviation of 6.37 MPa, giving a characteristic strength (expected to be exceeded by 95% of specimens) of 57 ...
Zhao Chenjie, Xiong Xiaohong, Xiong Zhenhua, Wu Kangwen, Cao Zhen, Shao Miao, Cao Tongwei, Dong Haoran, Ding Jieying, Zhao Chenge, Xie Yuxuan, Jia Xue, Liu Baofeng, Liu Can, Jiang Langkun, Liu Wenfeng, Wei Dongdong, Yuan Conggan, Li Xinjie   +18 more
doaj   +1 more source

Point defect in solids: Shear dominance of the far-field energy [PDF]

, 2007
It is shown that the elastic energy far from a point defect in an isotropic solid is mainly shear elastic energy. The calculation, which is based on a standard dipole expansion, shows that no matter how large or small the bulk modulus is compared to the ...
A. F. Andreev, C. Zener, J. D. Eshelby, Jeppe C. Dyre, L. D. Landau, P. A. Varotsos, T. Mura, Y. Kraftmakher   +7 more
core   +2 more sources

Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study

Advanced Engineering Materials, EarlyView.
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji, Monnamme Tlotleng, Samuel Skhosane, Lehlogonolo R. Kanyane, Abimbola P. I. Popoola, Sisa L. Pityana   +5 more
wiley   +1 more source