Joints and Defects / & Defect Condition
Mechanical performance of composite bonded joints in the presence of localised process-induced zero-thickness defects
... 3.2. Defect embedment The embedment of the defects was carried out using the highly thin (nearly zero-thickness) semi-circular (thumb nail) release films with thickness of < 15 ...bond defects has ...
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Clinical and cost effectiveness of autologous chondrocyte implantation for cartilage defects in knee joints : systematic review and economic evaluation
... knee joints is not known. This is partly because cartilage defects may arise from a variety of direct ...cartilage defects may present to a variety of medical practitioners, and may be evaluated with ...
101
Assessment of the Significance of Defects in Tubular Joints
... Because solutions for the stress intensity factor, K, and for the limit load, FL, of tubular joints with cracks are available for a few special cases only, a simplified p[r] ...
8
Influence of lack-of-fusion defects on load capacity of MAG welded joints
... risky defects are lack-of-fusion ...lack-of-fusion defects are primarily a result of inadequate welding ...lack-of-fusion defects gave reliable information on size, location and character of lack of ...
8
Enhancing the Lifetime of Welded Joints Using the Protective Coating and Causes the Formation of Defects in Them
... Welding of pipes from steels 10Г2С was performed using the power source inverter type MP 2400 company "KEMPPI". For coating used powder materials of Ni-Cr-B-Si-alloys. The substrates were low carbon steel. The coating ...
7
Evaluation of the reliability of nondestructive ultrasonic inspection methods for the detection and the characterization of defects in hydroelectric turbine welded joints
... welded joints, (1) inadequate accessibility (for cleaning) at weld toes due to inappropriate weld overlap and (2) insufficient heat input of subsequent pass to melt the remaining slag could induce interpass slag ...
126
Fatigue Assessment of Defect-Free and Defect-Containing Brazed Steel Joints
... for defect-free and defect-containing brazed ...of defects on the fatigue lifetime, defect-free specimens were compared with specimens containing ...that defect-containing specimens ...
9
Defect Identification in GRID-LOCK(R) Joints
... defects can be correlated to changes in these measurements. One among these techniques is shearography [14, 15], a method that can be used to measure the out- of-plane displacement gradient or slope. In this ...
90
Development of infrared techniques for practical defect identification in bonded joints
... the defect size to be detected which is why the specimen is out of focus in the ...the defect was extracted from the image, see Figure 65a, which shows a strong thermal gradient created by the non-uniform ...
210
Defect-based Condition Assessment Model of Railway infrastructure
... rail joints and rail connections such as tie plates and ...weather condition, etc. These factors are liable to defects, which can gradually propagate and cause major failures in the railway system – ...
139
Defect-based Condition Assessment Model and Protocol of Sewer Pipelines
... code defects in a CCTV inspection and represent the pipeline’s condition by a ...the defects, the PACP uses the clock reference technique. The PACP defects are divided into four sections which ...
215
Lowest Fatigue Limit Estimation of Ductile Cast Iron Joints by Considering Maximum Defect Size Toward Replacing Welded Joints
... many defects are usually included in the DCI specimens, the fatigue limit of DCI joints decreases with increasing the maximum defect ...maximum defect size is estimated by using statistics of ...
10
2D SIMULATION OF ULTRASONIC INSPECTION OF WELD JOINTS WITH DEFECT USING FINITE ELEMENT METHOD
... One important motivation for using such models is the relatively low cost of software predictions compared to the cost of comparable experiments. The simulation of ultrasonic testing using appropriate models allows to ...
7
Infrared techniques for practical defect identification in bonded joints in liquefied natural gas carriers
... a defect will result in non-uniformity in the surface temperature over the ...a defect may be inferred. While for shallow defects, that create a strong thermal contrast, the defects can be ...
9
Applications of Embedded Chirped Fibre Bragg Grating Sensors For Damage and Defect Detection in Composites and Composite Bonded Joints.
... bond-line defects in composite/composite bonded joints In Figure ...a defect is ...the defect in the spectrum can be determined definitively, because of the linear position between wavelength ...
165
A Defect-Based Approach for Detailed Condition Assessment of Concrete Bridges
... Structural Defects As mentioned in literature review, concrete bridges are commonly susceptible to many deterioration factors over the course of their service ...structural defects. During bridge field ...
202
Vibration based condition assessment of ball bearing with distributed defects
... Fig. 1. Experimental test rig A piezoelectric accelerometer with a magnetic sensitivity of 10 mV per-m/s 2 is used to measure the vibrations. It is mounted closer to the housing of the test bearing. For easy mounting and ...
8
Vibration Based Condition Assessment Of Rollingelement Bearings With Localized Defects
... of defects with same size of 1mm in diameter is introduced on one of the bearing on its outer race and ...line defect of 1mm is introduced on other bearing on its inner race to acquire its vibration ...
7
Yeast GMP Kinase Mutants Constitutively Express AMP Biosynthesis Genes by Phenocopying a Hypoxanthine-Guanine Phosphoribosyltransferase Defect
... ABSTRACT We have characterized a new locus, BRA3, leading to deregulation of the yeast purine synthesis genes (ADE genes). We show that bra3 mutations are alleles of the GUK1 gene, which encodes GMP kinase. The bra3 ...
9
Trend Deviation Analysis for Automated Detection of Defects in GPR Data for Road Condition Surveys
... approach for definition of the threshold value requires further optimisation in order to avoid high numbers of false positive alarms. In theory, this value should mainly depend on the road structure and material ...
6