Results 11 to 20 of about 150,864 (258)

Stress mapping reveals extrinsic toughening of brittle carbon fiber in polymer matrix

open access: yesScience and Technology of Advanced Materials, 2020
We conducted an in situ study on CFRP fracturing process using atomic-force-microscopy-based stress-sensitive indentation. Tensile stress distribution during fracture initiation and propagation was directly observed quantitatively.
Hongxin Wang   +7 more
doaj   +1 more source

Investigations of AE Signals Emitted From Dropped Indenter on Steel Pipes’ Surface

open access: yesIEEE Access, 2021
Acoustic emission (AE) are stress waves created by the material deformation, which could be utilized to detect impacts of objects within different mechanical systems.
Mohamed Shehadeh   +4 more
doaj   +1 more source

Instrumented indentation for determination of full range stress-strain curves [PDF]

open access: yes, 2014
One common method for the determination of full range stress-strain curves by instrumented indentation is presented and validated for an aluminium alloy.
De Smedt, A   +4 more
core   +1 more source

Investigations of Micro-Deformation in Monocrystalline Copper at Low Temperatures via Indentation

open access: yesMicromachines, 2022
Indentation experiments on differently oriented faces of monocrystalline copper were conducted to investigate the micro-deformation process at temperatures ranging from room temperature to 150 K.
Shunbo Wang   +5 more
doaj   +1 more source

Temperature-Induced Internal Stress Influence on Specimens in Indentation Tests

open access: yesMicromachines, 2022
The factors affecting the internal stress of specimens during indentation tests were investigated by finite element analysis (FEA) modelling. This was carried out to gain a qualitative understanding of the test errors introduced by the temperature ...
Shunbo Wang, Xianke Li, Hongwei Zhao
doaj   +1 more source

Nano and Micro indentation studies of bulk zirconia and EB PVD TBCs [PDF]

open access: yes, 2004
In order to model the erosion of a material it is necessary to know the material properties of both the impacting particles as well as the target. In the case of electron beam (EB) physical vapour deposited(PVD) thermal barrier coatings (TBCs) the ...
Dyer, A.   +2 more
core   +1 more source

Twinning and Slip in Zinc by Indentation [PDF]

open access: yes, 1968
Observations of twinning and slip deformation caused by indentation of zinc reveal that extensive slip on the basal and second-order pyramidal systems takes place at loads up to 5 kg.
Blish, R. C., II, Vreeland, T., Jr.
core   +2 more sources

Depth-sensing indentation tests in studying plastic instabilities [PDF]

open access: yes, 2004
This review surveys the phenomenon of plastic instabilities occurring in depth-sensing indentation measurements. Investigations presented focus on the characterization of Portevin-Le Chatelier type instabilities observed in different metal alloys during ...
Bobji   +14 more
core   +1 more source

Experimental analysis of damage creation and permanent indentation on highly oriented plates [PDF]

open access: yes, 2009
This paper presents an experimental investigation concerning low-velocity impact and quasi-static indentation tests on highly oriented laminates used in aeronautical and aerospace applications.
Abi Abdallah, Elias   +3 more
core   +1 more source

Effect of Velocity and Contact Stress Area on the Dynamic Behavior of the Spinal Cord Under Different Testing Conditions

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Knowledge of the dynamic behavior of the spinal cord under different testing conditions is critical for our understanding of biomechanical mechanisms of spinal cord injury. Although velocity and contact stress area are known to affect external mechanical
Chen Jin   +6 more
doaj   +1 more source

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