Results 1 to 10 of about 19,966 (131)

Cytoskeletal prestress homeostasis is a biological principle that governs living cell structure and function [PDF]

open access: yesMechanobiology in Medicine
Over the last few decades, physical principles have been proposed to explain some biological processes and functions. However, biological principles remain elusive.
Fazlur Rashid, Ning Wang
doaj   +2 more sources

Research on quantitative characterization method of tensile and compressive stress based on incremental magnetic permeability principle

open access: yesJournal of Physics: Conference Series
Abstract In this study, non-destructive quantitative characterization of stresses in low, medium, and high carbon steels was carried out based on the principle of incremental permeability (IP) detection. First, a special fixture was designed and constructed to perform calibration experiments on a single flat plate tensile specimen to ...
Hengtao Li   +3 more
openaire   +3 more sources

Multiaxial fatigue of in-service aluminium longerons for helicopter rotor-blades [PDF]

open access: yesFracture and Structural Integrity, 2016
Fatigue cracking of longerons manufactured from Al-alloy AVT-1 for helicopter in-service rotorblades was considered and crack growth period and equivalent of tensile stress for different blade sections were estimated.
A. Shanyavskiy, A. Toushentsov
doaj   +5 more sources

Cracking control technique for continuous steel-concrete composite girders under negative bending moment [PDF]

open access: yesArchives of Civil Engineering, 2023
Continuous steel-concrete composite girder can fully utilize material strength and possess large spanning ability for bridge constructions. However, the weak cracking resistance at the negative bending moment region of the girder seriously harms its ...
Min Cai   +5 more
doaj   +1 more source

Response characteristics and tensile failure evaluation of asphalt concrete core wall under spatial oblique incidence of SV waves

open access: yesYantu gongcheng xuebao, 2023
The existing researches on response and dynamic tensile failure of asphalt concrete core wall under spatial oblique incidence of seismic waves have great shortcomings.
WANG Fei 1, 2, SONG Zhiqiang 1, LIU Yunhe 1, LI Chuang 1
doaj   +1 more source

Bending-damaged fracture criterion and numerical implementation of limestone beam under three-point bending test

open access: yesFrontiers in Earth Science, 2023
To study the characteristics of tensile cracking by rock-bending damage, the bending stress–strain curves and the cumulative ringing counts were obtained by a three-point bending test and acoustic emission (AE) monitoring of limestone beams. Based on the
Benyun Li   +6 more
doaj   +1 more source

Uniaxial tensile mechanical behavior research of HTPB propellant under wide temperature and confining pressure

open access: yesAIP Advances, 2023
To investigate the effects of confining pressure, strain rates, and temperatures on the mechanical properties of the Hydroxyl-terminated Polybutadiene (HTPB) propellant, uniaxial tensile tests were performed utilizing wide-temperature-confining pressure ...
Chuntao Li   +4 more
doaj   +1 more source

MEASURING THE DEGREE OF LOCAL MADE SUB SOIL PLOW CHISEL FRAME TOLERANCE TO APPLIED STRESSES AND ITS FIELD PERFORMANCE [PDF]

open access: yesMesopotamia Journal of Agriculture, 2006
A tow–stage study was conducted in the laboratories of mosul Technical Institute in 2005, It aimed, specifying the mineral, chimerical and mechanical aspects of a sub soil plow.
Aziz R. Al-Bana
doaj   +1 more source

Influence of Cracking on Deflections of Concrete Box Girder Bridges

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2012
The problem of cracking and long-term deflection in larger-span prestressed concrete box girder bridges exists throughout the world and has restricted the development of long-span concrete bridges to some extent.
Chao Liu, Dong Xu
doaj   +1 more source

Space Frame Lattice Model for Stress Analysis of Bridge

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2010
The space frame lattice model, which is suitable for the analysis of stress of entire cross-section of bridge, is presented. It is suitable for the analysis of stress of entire cross-section of bridge.
Chao Liu, Dong Xu
doaj   +1 more source

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