Results 21 to 30 of about 291,405 (288)

Effect of Bit Configuration in Impact Penetration Tests with Button Bits

open access: yesJournal of MMIJ, 2016
Computer simulation of percussive rock drilling requires appropriate numerical models for the interactions among the drill body, rod, rod joint, bit, and rock.
Yingzong LIANG   +4 more
doaj   +1 more source

A method for measuring the contact area in instrumented indentation testing by tip scanning probe microscopy imaging [PDF]

open access: yes, 2014
The determination of the contact area is a key step to derive mechanical properties such as hardness or an elastic modulus by instrumented indentation testing. Two families of procedures are dedicated to extracting this area: on the one hand, post mortem
Charleux, L.   +5 more
core   +5 more sources

Penetration depth for shallow impact cratering [PDF]

open access: yes, 2005
We present data for the penetration of a variety of spheres, dropped from rest, into a level non-cohesive granular medium. We improve upon our earlier work [Uehara {\it et al.} Phys. Rev. Lett. {\bf 90}, 194301 (2003)] in three regards. First, we explore
A. R. Abate   +7 more
core   +4 more sources

Material characterization at high strain by adapted tensile tests [PDF]

open access: yes, 2011
The strength of materials at high strain levels has\ud been determined using the so-called Continuous-Bendingunder-\ud Tension (CBT) test. This is a modified tensile test\ud where the specimen is subjected to repetitive bending at the\ud same time.
Boogaard, A.H. van den, Emmens, W.C.
core   +3 more sources

Quantifying Mechanical Properties of Automotive Steels with Deep Learning Based Computer Vision Algorithms [PDF]

open access: yes, 2020
This paper demonstrates that the instrumented indentation test (IIT), together with a trained artificial neural network (ANN), has the capability to characterize the mechanical properties of the local parts of a welded steel structure such as a weld ...
Graf, Benjamin   +6 more
core   +1 more source

Study on the Comparison of Zero Shear Viscosity and Capillary Viscosity of Road Asphalt

open access: yesChemical Engineering Transactions, 2017
The penetration and the penetration index, softening point of 60 °C and equivalent softening point, dynamic viscosity, dynamic shear rheological test, zero shear viscosity and multiple stress creep recovery modified asphalt high temperature ...
Mingxia Tao, Renan Ma
doaj   +1 more source

A study on plant root apex morphology as a model for soft robots moving in soil. [PDF]

open access: yesPLoS ONE, 2018
Plants use many strategies to move efficiently in soil, such as growth from the tip, tropic movements, and morphological changes. In this paper, we propose a method to translate morphological features of Zea mays roots into a new design of soft robots ...
Anand Kumar Mishra   +4 more
doaj   +1 more source

Experimental Study on Gas Flow and Aerosol Deposition Characteristics in Micro-channel

open access: yesYuanzineng kexue jishu, 2023
Aerosol retention occurs when it penetrates through micro-leakage paths within the containment after nuclear reactor accidents. Aerosol particles are deposited by mechanisms such as gravity sedimentation, Brownian diffusion, entrance effect, and ...
HU Peizheng;WANG Shanpu;TONG Lili*;CAO Xuewu
doaj   +1 more source

Analysis of nanoindentation of soft materials with an atomic force microscope [PDF]

open access: yes, 2011
Nanoindentation is a popular experimental technique for characterization of the mechanical properties of soft and biological materials. With its force resolution of tens of pico-Newtons, the atomic force microscope (AFM) is well-suited for performing ...
Notbohm, Jacob   +2 more
core   +1 more source

Experimental studies of the resultant contact forces in drillbit-rock interaction [PDF]

open access: yes, 2014
Peer ...
Ajibose, Olusegun Kolawole   +2 more
core   +1 more source

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