Stress Analysis And Optimization Of Weld Penetration Problem In Butt Welded Joints

    24 Votes

In butt welded joints, a gap remains between two joined plates due to incomplete penetration (weld penetration problem). This gap may initiate a crack when the joint is subjected to loading. Often the butt welded joints with the above mentioned defect is used in a wide variety of engineering constructions such as bridge, boilers, pressure vessels, piping systems, ships, automobile industries, off-shore structures etc. The greatest advantage of using butt welds for joining metals is simplicity in use and higher joint strength.

The incomplete penetration defect can be compared as a rectangular notch and stress concentration will be more at its tip, Which may cause initiation of the crack that leads to failure of the welded joints, when it is subjected to low temperature, dynamic or cyclic loading. Hence, it is necessary to reduce the length of the defect to reduce stress concentration. This defect may be eliminated by suitable edge preparation. However the cost of making joints increase with edge preparation, it is necessary to find out optimization of weld-penetration defect length, from economical point of view.

So far, extensive research has been conducted to identify a permissible defect length by studying the stress concentration factor (S.C.F) for double V Butt welded joint, using photo elasticity technique. In the present analysis, stresses are analyzed using Finite Element Analysis and then stress concentration factors have been determined for single-V, single-J, double-V, and double –J butt welded joints and then weld penetration problem is optimized.

Popular Videos


How to improve your Interview, Salary Negotiation, Communication & Presentation Skills.

Got a tip or Question?
Let us know

Related Articles

Conceptual design Of Hybrid Scooter Transmission With Planetory Gear-Train
Vibratory Stress Relief In Manufacturing Processes
Biodiesel - Tomorrows Fuel
Optical Fiber Sensors In Medicine
Hybrid Fuel Cell Electric Vehicles
Agile Manufacturing – A Recent Trend In Manufacturing
IC Engines with Homogeneous Combustion In Porous Medium
Finite Element Analysis Of Automobile Suspension System
Application Of Machine Learning and Robotics
New Trends In Manufacturing - Rapid Prototyping
Technical Paper On Six Stroke Engine
Micro Machined Microsensors for the measurement of Mechanical Signals
TQM - A Successful Journey
Rapid Prototyping of Robotic Systems
A Control Classification of Automated Guided Vehicle Systems
Total Quality Management In Business Process Reengineering
Homogeneous Charge Compression Ignition - Future Of IC Engines
Vehicle Operator Safety - The Advantages of Using Electronic Sensors in Off-road Vehicles
Open Architecture Made Easy With CIM
Rapid Prototyping