Results 11 to 20 of about 6,901 (259)

Re-examination of dynamic load tests on piles

open access: yesYantu gongcheng xuebao, 2023
The dynamic load test (DLT) and the rapid load test (RLT) on piles both pursue the full activation of pile capacity during the impact event and evaluate the pile capacity by measuring and analyzing the impact excitation and response signals of pile top ...
CHEN Fan 1, 2, WEN Zhentong 1, XIE Xiaofeng 1, LI Jianmin 2
doaj   +1 more source

A Laboratory-Scale Instrumented Forging Hammer as an Intermediate Strain Rate Testing Device [PDF]

open access: yesEPJ Web of Conferences, 2021
Mechanical characterisation of metallic materials at intermediate strain rates is essential to calibrate and validate computational models for industrial applications such as high-speed forming processes i.e. hammer forging, blanking, forming, etc.
Agirre Julen   +5 more
doaj   +1 more source

Research on the Drop Hammer Impact Test System

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract The drop hammer impact test system adopts the multi-purpose and modular design to solve the four problems of the airbag door of automobile test instrument panel: the test conditions are generally inconsistent with the actual conditions; The secondary impact problem exists in the collision test.
Zhiming Wang   +2 more
openaire   +1 more source

Analysis of fracture energy in drop weight tear testing of API X65 gas pipeline steel

open access: yesJournal of Pipeline Science and Engineering, 2021
In this research, the effect of low velocity impact (LVI) on different components of fracture energy of API X65 gas pipeline steel is investigated using drop weight tear test (DWTT) specimens.
E. Fathi, S.H. Hashemi
doaj   +1 more source

An Experimental Investigation into Wear Resistance of Mg-SiC Nanocomposite Produced at High Rate of Compaction [PDF]

open access: yesJournal of Stress Analysis, 2018
The Mg-SiC nanocomposite specimens were produced at low strain rate of 8×10−3s−1 using a universal INSTRON testing machine, strain rate of about 8×102s−1 using a drop hammer and at strain rate of about 1.6×103s−1 employing a Split Hopkinson Pressure Bar (
G.H. Majzoobi, K. Rahmani, A. Atrian
doaj   +1 more source

Experimental investigation of the low-frequency impact sound transfer function of lightweight wooden floors via heel drops

open access: yesActa Acustica, 2020
The lightweight floor is a popular construction choice in buildings despite its poor low-frequency impact sound performance. This is exacerbated by common human activities, such as walking and jumping, that have high input force levels at low frequencies.
Qin Yi, Tan Jin Jack, Hornikx Maarten
doaj   +1 more source

Experimental and Numerical Investigation of Steel Sections under Impact Effect

open access: yesGrađevinar, 2021
Experimental and numerical behaviour of steel test specimens with various types of joints is investigated in this study. A drop weight test setup with necessary test equipment is used for this purpose.
Engin Gücüyen   +3 more
doaj   +1 more source

Static and dynamic testing of tendons [PDF]

open access: yesE3S Web of Conferences, 2020
Underground support system using tendons has been one of the significant achievements in Civil and Mining engineering endeavours in facing challenges of ground control.
Aziz Naj   +4 more
doaj   +1 more source

Evaluation of Walnut Kernel Quality (as Degree of Crushing) Obtained Under Impact Loading

open access: yesJournal of Agricultural Machinery, 2014
In this research the quality of walnut kernels under impact loading were studied. Due to unavailability of specific varieties of walnut in Iran, the tests were carried out on the available genotypes.
Kh Mohammadi Ghermezgholi   +4 more
doaj   +1 more source

Simulation Model and Case Study of Drainage Process After Pressure Test of Large Drop Natural Gas Pipeline

open access: yesIEEE Access, 2020
The drainage process of a large drop natural gas pipeline after a pressure test is a complicated transient flow process. This process is a gas-phase and liquid-phase flow process connected by a pig, in which the pressure inside the tube, and the flow ...
Enbin Liu   +5 more
doaj   +1 more source

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