Results 21 to 30 of about 59,661 (294)
Dynamic Elastic Modulus of Grinding Wheel
Journal of the Japan Society of Precision Engineering, 1970 In this paper, the relation between the dynamic elastic modulus measured by ultrasonic pulse method and the grade of the grinding wheel is discussed.The results obtained are as follows: 1. The grade of the grinding wheel can be determined by the dynamic elastic modulus.2.
Kuniaki UMINO, Noboru SHINOZAKI
openaire +3 more sources
Differences in dynamic modulus of elasticity determined by three vibration methods and their relationship with static modulus of elasticity [PDF]
Maderas. 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
Influence of moisture content on the dynamic modulus of elasticity
Research, 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]
Journal 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
Permeability and dynamic elastic moduli of controlled porosity ultra-precision aerostatic structures [PDF]
, 2014 Porous ceramic aerostatic bearings enable precise and smooth motion and improved stiffness compared with widely used orifice restrictor bearings. However, the processing techniques so far used are too complex or rely in lowering the sintering temperature
Corbett, John +2 more
core +1 more source
Diagnostic assessment of an impact of static and dynamic vehicle loads on covering of roadway [PDF]
MATEC 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
ANALYSIS OF THE STRESS CHARACTERISTICS OF CFG PILE COMPOSITE FOUNDATION UNDER IRREGULARITY CONDITION [PDF]
Civil 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
Shuiwen 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
Mechanical properties of collagen fibrils [PDF]
, 2007 The formation of collagen fibers from staggered subfibrils still lacks a universally accepted model. Determining the mechanical properties of single collagen fibrils ( diameter 50 - 200 nm) provides new insights into collagen structure. In this work, the
Bozec, L +5 more
core +1 more source
Effect of Drying-Rewetting on Elastic Modulus of Portland Cement Paste and Mortar
Journal 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