Results 61 to 70 of about 3,298,007 (203)
Global, depth sensing and dynamic hardness of metal matrix syntactic foams [PDF]
, 2011 This paper deals with the hardness testing of metal matrix syntactic foams (MMSFs). The hardness of the foams was characterized by three different hardness testing methods: global (or Brinell-like) hardness, depth sensing hardness and dynamic hardness ...
Németh, Árpád, Norbert Orbulov, Imre
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What is indentation hardness? [PDF]
, 2000 Using dimensional analysis and finite element calculations, we derive simple scaling relationships for loading and unloading curve, contact depth, and hardness.
郑哲敏 +4 more
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Applied SciencesIn order to study the damage evolution and fracture characteristics of rock with different composite modes in three layers under dynamic loading, rock specimens with different composite modes were made by using three materials: sandstone, marble and ...
Huajun Xue +6 more
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Shock and Vibration, 2021 An experiment on the static and dynamic tensile mechanical properties of polyvinyl chloride (PVC) elastomers is conducted using an Instron-5943 universal testing machine and an improved Split Hopkinson Tensile Bar to study the dynamic tensile mechanical ...
Jingfa Lei +5 more
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Shock and Vibration, 2015 This paper puts forward the concept of key strata in immediate roof (KSIF) and studied the dynamic effect and control mechanism of KSIF. The results show that KSIR controls the caving of its upper immediate roof strata; the break of KSIR has direct ...
Yuan Yong +3 more
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Dynamic Hardness Tester and Cure Meter [PDF]
, 1993 The Shore hardness tester is used extensively throughout industry to determine the static modulus of materials. The new apparatus described here extends the capability of an indentor-type tester into the dynamic regime, and provides a measurement of the ...
Madigosky, Walter M., Fiorito, Ralph B.
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Apparatus and method for determining the dynamic indentation hardness of materials [PDF]
, 2002 An apparatus and method for determining dynamic indentation hardness values of a material using a propagating stress wave to make an indentation in the material.
Koeppel, Brian J. +2 more
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Characterising Powder Flowability at High Shear Rates by the Ball Indentation Method
Chemical Engineering Transactions, 2019 Unreliable powder flow is a major problem during processing of powders. The shear cell is the most widely used method for powders subjected to moderate or high stresses, and under quasi-static conditions, with established methods for designing large bins
Monica Tirapelle +2 more
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Random vibration study of cold rolling mill excited by different hardness of strip steel
Applications in Engineering SciencePurpose:: The hardness of individual steel strips demonstrates inherent variability in actual production processes. Systematic hardness testing must be conducted to investigate the distribution patterns of strip hardness.
Weiquan Sun +5 more
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Rock Hardness Identification Based on Cutting Motor Current of Roadheader
Meikuang Anquan, 2020 It is difficult to monitor the cutting load directly during the driving process of roadheader for rock tunnel, which leads to the problem that the cutting speed and swing speed cannot be adjusted in time to adapt to the rock hardness change.
HE Ying, TIAN Muqin, SONG Jiancheng, FENG Junling, DONG Zonghui
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