نتایج جستجو برای: valves bridge and tensile tests

تعداد نتایج: 16865999  

This paper presents the effect of geogrid tensile strength by calculating pullout resistance and geogrid-soil interaction mechanism. In order to investigate this interface, a series of pullout tests have been conducted by large scale reformed direct shear test apparatus in both cohesive and granular soils. In numerical, finite difference software FLAC3D has been carried out on experimental test...

Journal: :Steel Construction 2021

Many steel rope systems are subjected to fluctuating tensile loads and therefore can fail due fatigue. Available fatigue test data indicate that diameter, mean stress, socket type, lay angle length influence the resistance. Most of tests were terminated before full failure ropes. This paper shows termination criterion, such as fracture first wire, 5 % wires or fracture, has a large on resulting...

2017
Shunbo Zhao Feijia Hu Xinxin Ding Mingshuang Zhao Changyong Li Songwei Pei

This article presents 755 groups splitting tensile strength tests data of concrete with manufactured sand (MSC) in different curing age ranged from 1 day to 388 days related to the research article "Experimental study on tensile strength development of concrete with manufactured sand" (Zhao et al., 2017) [1]. These data were used to evaluate the precision of the prediction formulas of tensile s...

2007
S. Chatterjee H. K. D. H. Bhadeshia

Stretch-flangeability measures the ability of a material to form into a complex shape. The parameter is often related to simple properties derived from tensile tests. An attempt is made here to discover the best way to exploit tensile test data to indicate flangeabilty. It is found that the ultimate tensile strength of steel is the single most important criterion that correlates with stretch-fl...

Journal: :علوم و تکنولوژی پلیمر 0
میرحمیدرضا قریشی

some numerical and experimental investigations are made on the performance of five different hyperelastic constitutive models (second order polynomial, yeoh, arruda-boyce, ogden and marlow) in tension and compressionmodes. first, the results of the tensile and compression tests on a rubber sample were used to determine the parameters of the models by curve fitting methods. next, by using an alg...

2009
Tsuneshichi TANAKA Nagatoshi OKABE Hideaki NAKAYAMA Yasushi ISHIMARU Takashi IMAMICHI

It is difficult to conduct cyclic tensile fatigue tests for fine ceramics because of its high brittleness, and a little eccentricity of loading axis and gripping device gives inaccurate strength data. So, a major part of cyclic fatigue tests have been carried out under bending load conditions, for the allowance of misalignment of loading axis is generous to some extent in the case of bending fa...

2014
T. Iizuka R. Naka H. Hata A. Ishiyama Y. Homma Soren Olsson

The conclusions of an experimental program involving altered tensile strength and microstructure of stainless compressor valve steel are described. The paper presents the results of measurements of ductility, corrosion resistance, bending fatigue strength and damping. Encouraging indications have been achieved concerning the possibilities to further improve the characteristics of current materi...

Journal: :The Journal of surgical research 2009
Silvia Kull Ilaria Martinelli Enrica Briganti Paola Losi Dario Spiller Sara Tonlorenzi Giorgio Soldani

BACKGROUND In surgical and endoscopic procedures, tissue adhesives are commonly used as reinforcement of sutures or as bonding and hemostatic agents. Fibrin glues do not guarantee adequate properties for many clinical applications; on the contrary, cyanoacrylate glues guarantee high bonding strength between biologic tissues. The aim of this study was to provide evidence regarding adhesive and s...

2018
Christian Schulze Markus Weinmann Christoph Schweigel Olaf Keßler Rainer Bader

The application of Ti-6Al-4V alloy or commercially pure titanium for additive manufacturing enables the fabrication of complex structural implants and patient-specific implant geometries. However, the difference in Young's modulus of α + β-phase Ti alloys compared to the human bone promotes stress-shielding effects in the implant-bone interphase. The aim of the present study is the mechanical c...

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