Results 61 to 70 of about 428,185 (211)

Testing and Development of Pre-Stressed CFRP Retrofit Strategies for Controlling Fatigue Cracking in Steel Waterway Lock Gate Structures [PDF]

open access: yes, 2018
Steel waterway lock gates across the national inland waterway transportation network are reaching and exceeding their intended service life, often experiencing component failures that lead to service interruptions.
Langston, Maggie
core   +2 more sources

Modal Analysis of Marine Pipeline Based on Full-scale Fatigue Test System

open access: yesShiyou jixie, 2018
In the past, the full-scale fatigue tests of marine pipelines were mostly focused on the bending fatigue. Considering the uneven circumferential force on the pipeline weld and the prolonged test period, the resonance principle is proposed for the fatigue
Liang Ke   +4 more
doaj  

Analysis methods of the dynamic structural stress in a full-scale welded carbody for high-speed trains

open access: yesAdvances in Mechanical Engineering, 2018
The calculation of the dynamic stress of a large and complex welded carbody is the key to the fatigue design and the durability evaluation of the carbody.
Yaohui Lu   +5 more
doaj   +1 more source

Fitting test of two-parameter BS fatigue life distribution and approximate interval estimation of environmental factor

open access: yes上海师范大学学报. 自然科学版, 2019
Two-parameter Birnbaum-Saunders (BS) fatigue life distribution is an important failure model in the probability physical methods.It is more suitable for describing the life rules of fatigue failure products than common life distributions such as Weibull ...
WANG Ronghua, GU Beiqing, XU Xiaoling
doaj   +1 more source

A 16-year follow-up of walking function, fatigue, and pain in adults aged 34–65 years with spastic cerebral palsy

open access: yesJournal of Rehabilitation Medicine
Objective: This study aimed to describe the long-term changes in walking function, fatigue, and pain in adults with cerebral palsy. Design: A 16-year follow-up study with paired comparisons.
Sandra L. Klund-Hansen   +5 more
doaj   +1 more source

Motion Synchronous Composite Decoupling with Fewer Sensors on Multichannel Hydraulic Force Control for Aircraft Structural Loading Test System

open access: yesSensors, 2018
The aircraft full-scale fatigue test is widely used in the modern aircraft industry for the safety of flight. Generally, the aircraft full-scale fatigue test is achieved by structural loading; multiple hydraulic actuators are used to apply load for force
Yaoxing Shang   +5 more
doaj   +1 more source

Hot isostatically pressed manufacture of high strength MERL 76 disk and seal shapes [PDF]

open access: yes
The feasibility of using MERL 76, an advanced high strength direct hot isostatic pressed powder metallurgy superalloy, as a full scale component in a high technology, long life, commercial turbine engine were demonstrated.
Eng, R. D., Evans, D. J.
core   +1 more source

Research on Full-size Resonant Fatigue Test of Marine Riser

open access: yesShiyou jixie, 2017
To address the problem with the mechanism research of full-size resonant bending fatigue test of the marine riser, the mechanical model for eccentric excitation type marine riser resonant bending fatigue test has been established.
Wang Yaofeng   +6 more
doaj  

Experimental Study on Constant-Amplitude Fatigue Performance of Weld Toe in Steel Tube of Welded Hollow Spherical Joints in Grid Structures

open access: yesAdvances in Materials Science and Engineering, 2019
The grid structure with welded hollow spherical joints (WHSJs) is widely used in industrial buildings with suspended cranes. Cyclic loadings generated by the suspended cranes could result in the fatigue failure of WHSJs.
Jian-li Zhang   +2 more
doaj   +1 more source

Design and evaluation of low cost blades for large wind driven generating systems [PDF]

open access: yes
The development and evaluation of a low cost blade concept based on the NASA-Lewis specifications is discussed. A blade structure was designed and construction methods and materials were selected.
Eggert, W. S.
core   +1 more source

Home - About - Disclaimer - Privacy