Complex sentence: From 1980 to 1982, Dr. Moustafa Elgammal was granted Sabbatical Leave to B.S.R.A. Wallsend Research Station contributed in Marine Design Manual for Shipyards, were he served as a Fracture Mechanics Expert and was the Principal Research Officer to Shipbuilding Department.
Split into simpler sentences: From 1980 to 1982, Dr. Moustafa Elgammal was granted Sabbatical Leave to B.S.R.A. Wallsend Research Station where he contributed in Marine Manual for Shipyards design. He served as a Fracture Mechanics Expert and was the Principal Research Officer to Shipbuilding Department.