MatStress Engineering
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* Fatigue, damage tolerance, FEM, cellular materials, materials characterization at different length scales
* Effect of small and large scale damages on materials performance
* Design and analysis of composite and metallic structures
* Finite element analysis
* High temperature material properties-application to auto engines and power plants
* Creep and MDMT calculations
* Impact damage calculations and residual strength
* Residual stress measurements
* Validation of failure analysis reports
The Failure Assessment Diagram (FAD) is recommended for prediction of remaining life and failure of structures and materials with flaws, in BS 7910 and API 579 FFS. These two standards recommend finite element analysis of the behaviour of complex cases. This video gives a detailed methodology for assessment of crack like defects for safety critical structures.
18/08/2016
MatStress Engineering has been analyzing the feasibility of Acoustic Emission (AE) sensors for detection of corrosion, cracking and fracture in the structures, for last one year or so. We have completed our lab based testing and now ready to provide this state of the art technique to serve the industry of Pakistan.
AE is a technique in which a sensor detects any change in the material’s energy by showing acoustic waves in the system. The method is extremely useful when a crack initiates or any plastic deformation occurs due to aging, temperature gradients, external mechanical forces or corrosion.
MatStress Engineering will present two papers in 6th International Mechanical Engineering Congress in Karachi from 15th to 17th July 2016. The papers show results of our recently developed capabilities on
1- Improvement of Surface Characteristics of Welds and damages through Ultrasonic Impact Treatment.
2- Surface Replica Based Method for Calculation of Surface Damage Characteristics through Finite Element Analysis.
http://www.nediep.com/
6th International Mechanical Engineering Congress (SIMEC-2016) Conference on Energy and Sustainability (27 April 2013) - Mechanical Engineering Department, NED University of Engineering & Technology, Karachi, Pakistan.
Two 45 Degree Cracks in Mode I Loading
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