Results 11 to 20 of about 20,914 (274)

The verification of a new approach to the experimental estimation of tensile forces in prestressed structural elements by method based on the magnetoelastic principle [PDF]

open access: yesMATEC Web of Conferences, 2017
There are a large number of civil engineering structures where the important structural elements are loaded by large tensile forces. In many practical cases, it is significant to know the current value of tensile force or prestressed stress in these ...
Klier Tomáš   +5 more
doaj   +3 more sources

Principle of local symmetry in mixed-mode fracture

open access: yesCommunications Physics
When brittle materials are subjected to uniaxial tensile stress, we observe planar crack propagation perpendicular to the loading direction. However, when additionally subjected to an out-of-plane shear stress, the crack tip/front deviates, leading to ...
Laureano Ortellado   +4 more
doaj   +2 more sources

A Simple and Efficient Method for Obtaining the Whole-Range Uniaxial Tensile Properties of Pipeline Steel

open access: yesMetals, 2018
To obtain the whole-range true stress-true strain curves of API X65, a method is proposed based on the equal proportion principle and digital images. The tensile elongation was obtained by tracing the gauge points on the specimen surface, and the true ...
Lingzhen Kong   +5 more
doaj   +2 more sources

Modelling of dynamic damage and failure in aluminium alloys [PDF]

open access: yes, 2012
A physically based damage and failure model, applicable to orthotropic metals is proposed in this paper. To account for the physical mechanisms of failure, the concept of thermally activated damage initially proposed by Klepaczko [1], has been adopted as
Djordjevic, Nenad   +3 more
core   +1 more source

Full-field strain measurement and identification of composites moduli at high strain rate with the virtual fields method [PDF]

open access: yes, 2010
The present paper deals with full-field strain measurement on glass/epoxy composite tensile specimens submitted to high strain rate loading through a split Hopkinson pressure bar (SHPB) device and with the identification of their mechanical properties ...
MOULART, Raphaël   +15 more
core   +1 more source

Experimental study on spalling of deep rock under half sine stress wave disturbance

open access: yesYantu gongcheng xuebao, 2022
For the spalling failure phenomenon of deep rock under the action of stress wave disturbance, based on the one-dimensional elastic wave theory, the propagation mechanism of a simple half sine stress wave in a single rock member is clarified, and the ...
MAN Ke 1, LIU Xiao-li 2, SONG Zhi-fei 1
doaj   +1 more source

Proposal for a smart pressurised ring test to study thick composite produced by filament winding [PDF]

open access: yes, 2013
This work was supported by OSEO agency. The authors would like to thank Air Liquide and EADS Composites Aquitaine for their technical support in the H2E project.Improvements in the characterisation of materials used in pipes, tubes or vessels rely on the
BOIS, Christophe   +3 more
core   +1 more source

Uniaxial tensile response and tensile constitutive model of ultra-high performance concrete containing coarse aggregate (CA-UHPC)

open access: yes, 2023
To establish the tensile constitutive model of ultra-high performance concrete containing coarse aggregate (CA-UHPC), monotonic and cyclic uniaxial tensile tests for CA-UHPC with fiber volume fractions of 2.5% and 2.0% were conducted. Test results showed
Veljkovic, M. (author)   +3 more
core   +1 more source

Reduction in Mode-I SIF of an Edge Cracked C-Shaped Specimen Using Piezoelectric Actuator [PDF]

open access: yesE3S Web of Conferences, 2023
The focus of the current research is on the feasibility of an adhesively bound piezoelectric actuator in the active repair of an edge-cracked C-shaped specimen.
Pattanayak Sourav, Pohit Goutam
doaj   +1 more source

Long Term Creep Assessment of Room-temperature Cured Epoxy Adhesive by Time-stress Superposition and Fractional Rheological Model

open access: yesApplied Rheology, 2018
The creep behavior of a new type epoxy resin adhesive which is room-temperature cured and used for reinforcing engineering structures was studied. The tensile strength of the adhesive has reached the desired values for the structural adhesive used for ...
Li Hui, Luo Yingshe, Hu Donglan
doaj   +1 more source

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