Results 91 to 100 of about 151,301 (310)

TS SPECIMEN LIFE PREDICTION OF HIGH-STRENGTH STEEL RESISTANCE SPOT WELDS

open access: yesJixie qiangdu, 2016
The plastic zone in crack tip influences life prediction result when using crack propagation method to predict fatigue life of spot welds. Most of the methods used to predict fatigue life don’t take plasticity into consideration.
ZHANG Yu, LI DaYong, TANG WeiQin
doaj  

NIMS fatigue data sheet on low- and high-cycle fatigue properties of boron steel

open access: yesScience and Technology of Advanced Materials: Methods
The new fatigue data sheet, No. 134, discloses the low- and high-cycle fatigue properties of boron steel. The low-cycle fatigue tests under strain-controlled conditions used incremental step tests to show cyclic stress-strain curves and constant-strain ...
Yoshiyuki Furuya   +2 more
doaj   +1 more source

Fatigue life time modelling of Cu and Au fine wires

open access: yesMATEC Web of Conferences, 2018
In this study, the influence of microstructure on the cyclic behaviour and lifetime of Cu and Au wires with diameters of 25μm in the low and high cycle fatigue regimes was investigated.
Khatibi Golta   +4 more
doaj   +1 more source

Very High Cycle Fatigue Behavior of TA11 Titanium Alloy

open access: yesJournal of Aeronautical Materials, 2017
The conventional fatigue test method was used to obtain the very high cycle fatigue (VHCF) limits of 3×107 and 1×108 cycles for TA11 titanium alloy in different temperatures and stress ratios.
JIAO Zehui   +4 more
doaj   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat   +7 more
wiley   +1 more source

The Effect of microstructural heterogeneities on the fatigue behaviour of 22MnB5 sheet steel [PDF]

open access: yes, 2013
This work deals with the effect of heat treatment on the fatigue strength of a rear axial beam and aims to propose a methodology suitable and reliable for fatigue design.
PESSARD, Etienne   +4 more
core  

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

COMBINED HIGH AND LOW CYCLE FATIGUE LIFE PREDICTION MODEL TAKING ACCOUNT OF COUPLED DAMAGE

open access: yesJixie qiangdu
Mechanical parts such as gas turbine blades are often subjected to low cycle fatigue caused by low⁃frequency centrifugal force and high cycle fatigue caused by high⁃frequency vibration loads during the working process,and the damage caused by the ...
LIU PengShuai, WANG XiaoWei, HOU Jun
doaj  

Effect of low cycle fatigue pre-damage on very high cycle fatigue

open access: yesTheoretical and Applied Mechanics Letters, 2012
AbstractCarbon-manganese steel is often applied in components of pipes in nuclear plant. Ultrasonic fatigue tests following low cycle fatigue (LCF) cycles damaged are used to study the strength of very high cycle fatigure (VHCF). The comparison of test results of simple VHCF and cumulative fatigue (LCF plus VHCF) shows that LCF load influences the ...
Huang, Zhiyong   +3 more
openaire   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

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