October 06-08, 2017 Workshop series on ‘Advanced Composites Technology and Fatigue & Fracture Testing of Metals’ was organised jointly by Indian Structural Integrity Society (InSIS), Ramaiah University of Applied Sciences (RUAS), Indian Institute of Science (IISc) and Bangalore Integrated Systems Solutions (P) Ltd. (BISS) at RUAS Peenya Campus from October 6th to 8th 2017.
Day 01: Oct 6th 2017 – Workshop on Advanced Composites Technology
Opening Remark was presented by Dr. R. Sunder, Bangalore Integrated System Solutions (P) Ltd., (BISS), Bengaluru. Prof. Govind R Kadambi, Pro-Vice Chancellor welcomed and addressed the gathering and briefed about Ramaiah University of Applied Sciences. The Inaugural address was delivered by Dr. Satish Chandra from CSIR – National Aerospace Laboratories, Bengaluru. Dr. Satish Chandra spoke on the topic ‘Design of Composite Structures: Damage/Failure Modes and Development of Testing Standards’. Key note address on ‘Recent Advances in Structural Health Monitoring of Composite Structures’ was delivered by Prof. S. Gopalakrishnan, Department of Aerospace Engineering, IISc, Bengaluru. Key note address was followed by lectures on Advanced Composites Technology by (R) Shri Narayana Rao, Hindustan Aeronautics Limited, Bengaluru, (R) Dr. N. Shama Rao, Aeronautical Development Agency, Bengaluru, Dr. Suhasini Gururaja, Department of Aerospace Engineering, IISc, Bengaluru, Shri. Subbu Rao, TATA Advanced Materials Limited, Bengaluru and Dr. TCS Reddy, Aeronautical Development Agency, Bengaluru. All the eminent speakers from academia and industry covered topics on ‘Aerospace Structures’, ‘Manufacturing Processes of Advanced Composites’, ‘Effects of Defects in Carbon Fibre Reinforced Plastics’, ‘Sandwich Structures’ and ‘Composite Aircraft Repair Technology’. The lectures from speakers addressed all the practical issues associated with design, technology, manufacturing, testing and repair of composites technology. All the participants were taken on tour to Engineering Centre for Composites Technology (ECCT) of Ramaiah University of Applied Sciences in afternoon. Demonstration of state-of-the-art facilities at ECCT included layup in clean room facility, computer aided prepreg cutting, resin infusion technology, non-destructive inspection for quality control and mechanical testing of composites including tension/compression, shear, fracture and fatigue testing with state-of-the-art on-line scanner to provide real-time imaging of damage of carbon fibre reinforced plastic (CFRP) during the test.
Day 02: Oct 7th 2017 – Workshop on Low Cycle Fatigue Testing of Metals
Inauguration and Opening Remarks of Low Cycle Fatigue (LCF) Testing of Metals Workshop was carried out by Prof. Vikram Jayaram, Department of Materials Engineering, IISc, Bengaluru. Key note address on ‘Notch Fatigue Design using LCF Properties’ was presented by Dr. R. Sunder from BISS. Key note address was followed by lectures on LCF Testing of Metals by Dr. Kartik Prasad, Defence Metallurgical Research Laboratory, Hyderabad, Dr. A. Nagesha, Indira Gandhi Centre for Atomic Research, Kalpakkam and Mr. Ramakrishna Hebbar, BISS, Bengaluru. All the eminent speakers from Defence Laboratories, National Laboratories and industry covered topics on ‘Methodologies in LCF Testing for Indian Navy’, ‘Creep-Fatigue Interaction and Thermomechanical Fatigue Testing’ and ‘Miniature Specimen Testing’. The lectures from speakers addressed different types of LCF testing including room temperature and elevated temperature LCF, creep-fatigue testing, thermo-mechanical fatigue and corrosion LCF. This was followed by demonstrations on advanced techniques of test and measurements at BISS facility.
Day 03: Oct 8th 2017 – Workshop on Low Cycle Fatigue Crack Growth and Fracture Testing of Metals
Key note address on ‘Fracture Testing of Metals’ was delivered by Dr. Sunder, BISS in place of Dr. Vikas Kumar Saxena from Defence Metallurgical Research Laboratory, Hyderabad. Due to unscheduled meeting with Ministry of Defence, Government of India, Dr. Vikas Kumar Saxena could not make it up for the workshop. Key note address was followed by lectures on Fatigue crack growth and fracture testing of Metals by Dr. R. Sunder, BISS, Bengaluru and (R) Dr. G. Raghava, CSIR-Structural Engineering Research Centre, Chennai. The eminent speakers covered the topics on ‘Impact of Fracture Mechanics on Airframe Structural Integrity’, ‘Elementary Engineering Fracture Mechanics and its Applications’ and ‘Case Studies on Structural Integrity of Power Plant Piping Components’. The lectures from speakers addressed the practical issues of fatigue crack growth and fracture testing. The lectures from speakers were followed by laboratory tour at BISS which included demonstration on test hardware and software for different types of fatigue crack growth and fracture tests, including fatigue pre-cracking for fracture testing, fatigue crack growth testing under K-control and variable-amplitude loading, testing for fatigue thresholds, compliance and DCPD – based crack size estimates, corrosion and creep crack growth, K1c, CTOD and J1c tests, determination of system hardware and software performance and quality requirements to address nuances associated with different types of tests.
Workshop was attended by a good number of participants from industries, IITs, NITs, other academic institutions and good number of post graduate and PhD research students. Overall, the workshop was a great success.