Results 11 to 20 of about 214,838 (291)

Differences in dynamic modulus of elasticity determined by three vibration methods and their relationship with static modulus of elasticity [PDF]

open access: yesMaderas. Ciencia y tecnología, 2016
Dynamic modulus of elasticity was determined in clearwood samples of eight tropical hardwood species using longitudinal vibrations, flexural vibration and ultrasonic transit-time methods. These samples were subsequently subjected to three point static bending test to determine static modulus of elasticity and modulus of rupture.
Chauhan, Shakti, Sethy, Anil
openaire   +3 more sources

Diagnostic assessment of an impact of static and dynamic vehicle loads on covering of roadway [PDF]

open access: yesMATEC Web of Conferences, 2021
The article presents diagnostic possibilities for testing covering of roadway through dynamic and static loading units. The article presents features, advantages and principal characteristics of the equipment: die unit, Dina-3M, UDN-NK, Dynatest unit ...
Kurakina Elena   +2 more
doaj   +1 more source

Influence of moisture content on the dynamic modulus of elasticity

open access: yesResearch, Society and Development, 2022
Pinus forests are the second most planted in Brazil and the wood obtained from them is mainly used as structural elements in the civil construction sector. The Brazilian standard that deals with calculations of wooden structures projects recommends the use of wood in the range of 10% to 20% of moisture content.
Marcelo Rodrigo Carreira   +7 more
openaire   +2 more sources

Relation between the dynamic modulus of elasticity and the static modulus of elasticity, the modulus of rupture of mandarin peel–sawdust composite board [PDF]

open access: yesJournal of Wood Science, 2017
This study was conducted to determine the relation between the dynamic modulus of elasticity and the static modulus of elasticity, and the relation between the dynamic modulus of elasticity and the modulus of rupture of mandarin peel–sawdust composite boards. The result of this study was as follows: There was highly close linear correlation between the
Cheng-Yuan Li   +3 more
openaire   +1 more source

An experimental study of dynamic parameters of unit cell of deep mixed column-reinforced soft clay under dynamic loading

open access: yesShuiwen dizhi gongcheng dizhi, 2022
Composite soil with deep mixed column is widely used in strengthening soft soil subgrade. However, there is still a lack of understanding the dynamic characteristics of composite soil with deep mixed column and evaluating unreasonably the long-term ...
Guanbao YE   +4 more
doaj   +1 more source

Nanoindentation of bone: Comparison of specimens tested in liquid and embedded in polymethylmethacrylate [PDF]

open access: yes, 2004
Elastic modulus of bone was investigated by nanoindentation using common methods of sample preparation, data collection, and analysis, and compared to dynamic mechanical analysis (DMA: three-point bending) for the same samples. Nanoindentation (Berkovich,
Boyde, A, Bushby, AJ, Ferguson, VL
core   +1 more source

ANALYSIS OF THE STRESS CHARACTERISTICS OF CFG PILE COMPOSITE FOUNDATION UNDER IRREGULARITY CONDITION [PDF]

open access: yesCivil Engineering Journal, 2017
By the excitation load function corresponding to the irregularity management standard the vertical load of the train is simulated. Based on the finite difference software FLAC3D the three-dimensional dynamic coupling finite difference model of track ...
Yang Chengzhong, Ni Kai, Wang Shufang
doaj   +1 more source

Anelastic relaxor behavior of Pb(Mg1/3Nb2/3)O3 [PDF]

open access: yes, 2013
Elastic storage modulus and loss of relaxor lead magnesium niobate ceramics, Pb(Mg1/3Nb2/3)O3, have been measured with dynamic mechanical analyzer in single cantilever mode in the temperature range from 170 K to 320 K and at frequencies from 0.1 Hz to 50
Damjanovic, Dragan, Ursic, Hana
core   +2 more sources

Early Mechanical and Microstructure Evolution Characteristics of Concrete in Steam Curing Condition

open access: yesGeofluids, 2023
In order to study the effect of steam curing on early mechanical properties of concrete, the strength, dynamic elastic modulus, and microstructure characteristics of concrete under different curing methods were tested.
Shengrong Liao   +3 more
doaj   +1 more source

Effect of Drying-Rewetting on Elastic Modulus of Portland Cement Paste and Mortar

open access: yesJournal of King Saud University: Engineering Sciences, 1989
The effect of drying and rewetting on the dynamic elastic modulus of 0.4 and 0.6 W/C ratio pastes and mortar were investigated. Drying results in a significant reduction in the dynamic elastic modulus due to the moisture stress gradients.
Jamal A. Al-Mudaiheem
doaj   +1 more source

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