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On‐Line Measurement of Onset and Growth of Edge‐Delaminations in CFRP‐laminates by an optical grating reflection method
Author(s) -
Schütze R.,
Goetting H. C.
Publication year - 1985
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.19850160906
Subject(s) - delamination (geology) , enhanced data rates for gsm evolution , grating , materials science , reflection (computer programming) , line (geometry) , optics , composite material , structural engineering , optoelectronics , engineering , computer science , geometry , physics , mathematics , geology , telecommunications , paleontology , subduction , tectonics , programming language
The onset and growth of edge‐delaminations in multidirectional CFRP‐specimens under quasi‐static and fatigue loading was determined by the application of a new optical grating reflection method. This procedure allows the on‐line observation of surface deformations corresponding to the actual size of propagating edge‐delaminations. The evaluation of the grid patterns described the growth of the delamination versus increasing load or number of cycles, respectively, and permitted the measurement of out‐of‐plane deformations with relatively high resolution.