Abstract Interfacial structure greatly affects the mechanical properties of laminated plates. However, critical material that impact interfacial morphology, appearance, and associated bonding mechanism explosive welded plates are still unknown. In this paper, same base plate (AZ31B alloy) different flyer metals (aluminum alloy, copper, stainless steel) were used to investigate morphology struct...

For the fatigue design of a large scaled welded structure, the readily accessibility of various engineering tools is required for the static, fatigue, dynamic analysis and parametric study. In this paper, a multi-agent system is suggested for the development of distributed, open and intelligent design system. The developed design system is applied to assess cumulative fatigue damage on the weld...

Limiting dome height (LDH) tests were used to evaluate the formability of laser butt welded blanks of the dual phase 980 steel in comparison with the base metal. Two different lasers were used: diode and Nd:YAG, giving a wide range of welding thermal cycles. A sharp decrease in LDH was observed in the welded specimens due to the formation of a softened zone in the outer heat affected zone. Soft...

The interface bonding strength of thinly coated materials is difficult to be measured accurately owing the size limitations coating layer. In this study, interfaces an underwater explosive welded tungsten foil on ferritic steel was investigated by deep-notch-type micro-tensile tests and microscopic double-notch shear (DNS) compression tests. were carried out using a focused ion beam (FIB) tensi...

The detection and classification of the defects in the welded components are very important in order to ensure the structural integrity of the fabricated components of the test blanket module (TBM). RAFM steel is used as structural material for the TBM, therefore ultrasonic based technique are the most suitable for high sensitive defect detection. In this work ultrasonic pulse echo technique is...

For hot extrusions of magnesium alloy sheets, Dissimilar AZ80 and AZ31 were used, in which AZ80 was placed on advancing side and AZ31 on retreating side, using friction stir butt welding with different process parameters. Some defect-free welded joints with good weld surfaces could be obtained with some suitable welding conditions. The maximum tensile strength of welded joint which is 225.5 MPa...

Tailor Welded Blanks (TWBs) made of dissimilar, uniform or non uniform thickness materials have potential applications in automobile industries for light weight materials in order to improve fuel efficiency and cost of carrier. The focus of this paper is to develop and present analytical model to determine total elongation of tailor welded blank (TWBs). The validation of this method is done by ...

Hydraulic support is the main supporting equipment of the coal mining systems, and they are usually subjected to fatigue failure under the high dynamic load. The fracture positions are generally at welded joints where there is a serious stress concentration. In order to investigate and further improve the fatigue strength of hydraulic support, the present work first located the possible positio...

Study on corrosion propensity of welded mild steelbar in soil media around the coastal area of University of Lagos has been carried out using gravimetric method. Six (6) samples each for welded and unwelded mild steels were cut, their initial weights were recorded and buried in two selected soil. The weight losses of these coupons were measured at regular intervals for a period of six months (1...

The investigation of fatigue strength needs an accurate solution and reliable values of the stress intensity factor (SIF). In this study, SIF of load-carrying cruciform welded joints has been evaluated using finite element method (FEM), and compared with the available solutions from literature. Load-carrying cruciform welded joints with isosceles triangles and non-isosceles triangle fillet weld...