Metode pemeriksaan hasil pengelasan material plat terdiri dari beberapa macam, mulai Destructive Test (DT) dan Non (NDT). Dalam paper ini penulis membahas tentang desain pembuatan alat yang dapat dipergunakan untuk melakukan pengujian cukup murah akurat. Alat mendeteksi keberadaan cacat las berupa lubang atau retak dengan metode vacum. bagian yaitu pompa vacum, selang, box vacum pelengkap lainn...

Adhesive bonding of aluminum holds some possible advantages over the traditional methods of construction in the aerospace industry. However, there is uncertainty about the mechanism of adhesive bonding and the changes occurring during environmental attack which reduce the bond strength. An improved understanding will aid in the development of better techniques for non-destructive testing (NDT) ...

Laser-ultrasonics is an attractive and powerful tool for the non-destructive testing and evaluation (NDT&E) of composite materials. Current systems for non-contact detection of ultrasound have relatively low sensitivity compared to contact peizotransducers. They are also expensive, difficult to adjust, and strongly influenced by environmental noise. Moreover, laser-ultrasound (LU) systems typic...

Two concrete deck slabs extracted from a Canadian bridge have been evaluated using non-destructive testing (NDT), followed by destructive testing. Throughout its service life, the experienced harsh environmental conditions with frequent freeze-thaw cycles, hot and humid summers, use of de-icing salts during winters. This study presents preliminary results an exhaustive condition assessment two ...

At present the civil aerospace industry is undergoing its most rapid period of change in history, due to the large-scale move from metal to composite primary structures. This poses an immediate throughput challenge for the non-destructive testing (NDT) community on the production line where, initially, all composite primary structure will be inspected at manufacture. The background of composite...

To accelerate the broad application of silicon carbide (SiC) power MOSFETs, their short-circuit (SC) robustness and reliability must be thoroughly evaluated. This article, therefore, presents an overview related research methods aiming to meet that objective. Topics reviewed include non-destructive tester (NDT) used implement SC faults, extraction analysis degradation parameters, failure SiC MO...

Identification of in situ concrete characteristic strength (CCS) deteriorating RC structures directly affects their rehabilitation. Contemporary practices lack the ability to yield CCS or at most produce an unrealistic estimate, because: (i) core tests are few due technical and economic constraints positioning is random, inducing bias (ii) non-destructive (NDT) themselves not good estimators pr...