Results 1 to 10 of about 108,330 (269)

Research on Tensile Stress–Strain Relationship of Azide Polyether Propellant for Wide‐Temperature Range Based on Time–Temperature Superposition Principle [PDF]

Propellants, Explosives, Pyrotechnics
ABSTRACTAzide polyether propellants are emerging high‐energy solid propellants and have broad application prospects. To determine their mechanical properties under wide temperature ranges, tensile tests were conducted considering different combinations of temperature and loading rate, and the corresponding tensile stress–strain curves were plotted. The
Gang Wang, Yiwen Hu, Weilu Yang, Zhifeng Yuan, Xiuduo Song   +4 more
exaly   +4 more sources

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

Journal 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, Yan Liu, Huan Yao, Xianxian Wang   +3 more
exaly   +4 more sources

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

Mechanobiology 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

Pemodelan Retak pada Struktur Beton Bertulang [PDF]

Jurnal Teknik Sipil, 2010
Abstrak. Paper ini menyajikan pemodelan retak pada struktur beton bertulang dengan menggunakan nonlinear finite element. Pemodelan retak yang digunakan dalam studi ini adalah discrete crack untuk mensimulasikan diskontinuitas regangan.
Nuroji Nuroji, Mohamad Sahari Besari, Iswandi Imran   +2 more
doaj   +1 more source

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

Fracture 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]

Archives 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, Wenjie Li, Zhiyong Wan, Jianjun Sheng, Juliang Tan, Chao Ma   +5 more
doaj   +1 more source

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

Yantu 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

Frontiers 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, Yunlei Tian, Jiao Tian, Shuangying Zuo, Shuangying Zuo, Shiwan Chen, Shiwan Chen   +6 more
doaj   +1 more source

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

AIP 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, Haiyang Li, Weijing Wu, Wei Li, Aimin Pang   +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]

Mesopotamia 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