Results 91 to 100 of about 4,303 (287)

The use of seismic waves for geotechnical characterization of residual soil from Porto [PDF]

, 2013
This dissertation deals with soil characterization methods based on laboratoty tests applied to geotechnical engineering ...
Besenzon, Davide
core  

Interpretation of bender element test results using sliding Fourier transform method

, 2019
Identification of the arrival point of the shear wave in bender element tests is a task that can have ambiguous results. The contamination of the received shear wave signal with a weak P-wave component, which can emerge either directly from the ...
Kumar, Jyant, Shinde, Ninad Sanjeev
core   +1 more source

SHEAR WAVE VELOCITY BY TSP APPLIED BENDER ELEMENT TEST IN SAND

Doboku Gakkai Ronbunshuu C, 2006
ベンダーエレメント試験における送信波と受信波の関係は試験装置系のインパルス応答に支配されるとの考えから，時間引き延ばしパルス (Time Stretched Pulse: TSP) を利用してインパルス応答を求める手法をベンダーエレメント試験に適用することを試みている．豊浦砂を用いた実験により，求めたインパルス応答はその応答長よりも長い波長の矩形波を送信波として用いたベンダーエレメント試験の受信波形と近似すること，インパルス応答から走時法により決定したせん断波速度は従来の方法と近似することを示している．また，インパルス応答における振動数毎の位相差から求めたせん断波の位相速度が振動数に依存する分散性について示している．
OGINO, Toshihiro, OIKAWA, Hiroshi, MITACHI, Toshiyuki, TSUSHIMA, Masaki, NISHIDA, Kohta   +4 more
openaire   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Influence of time on the small strain shear modulus of an allophanic volcanic ash [PDF]

E3S Web of Conferences
The small strain shear modulus is an important parameter in the assessment of soil dynamics problems. Studies on the small strain shear stiffness of volcanic ash remain rare probably because globally they cover just under 1% of the land surface. However,
Gobin Mukteshwar, Yasufuku Noriyuki, Watanabe Midori, Liu Guojun, Ishikura Ryohei   +4 more
doaj   +1 more source

New Methods for Arrival Time Determination in Bender Element Tests for Time-Lapsed versus Tomography

, 2019
This paper examines and reports on two new methods, i.e., the Stockwell transform based (ST) method and self-healing cross-correlation (SC) method, in determining the S-wave arrival time for bender element tests, especially for Vs tomographic imaging. In
Ooi, Ghee Leng, Chow, Jun Kang, Wu, Yuxin, Wang, Yu Hsing   +3 more
core   +1 more source

The small strain stiffness from bender elements tests for clayey soils

Annals of Warsaw University of Life Sciences – SGGW. Land Reclamation, 2018
Abstract The shear modulus of soils at small strain (G0) is one of the input parameters in a finite element analysis with the hardening soil model with small strain stiffness, required in the advanced numerical analyses of geotechnical engineering problems.
Katarzyna Markowska-Lech, Wojciech Sas, Mariusz Lech, Katarzyna Gabryś, Alojzy Szymański   +4 more
openaire   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Assessment on Time Determination of Bender Element Test: Insights from FEM Simulations and Laboratory Methodology [PDF]

Den initielle skjærmodulen, G0, er en viktig parameter i det geotekniske ingeniørfeltet, spesielt for å kunne forutsi jordens oppførsel under dynamisk og sykliske laster.
Høntorp, Kristian Willmann, Gjertsen, Magnus Borg   +1 more
core  

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source