Delavault was born on 15 January 1924, in
Andilly, Charente-Maritime; She became a researcher at the
University of Rennes in 1958, was promoted to professor in 1962, and remained there until 1970, when she became a professor at the
École nationale supérieure d'ingénieurs de Caen. She retired in 1984. Delavault died on 2 April 2003. ==Activism and service==