caa a22 4500 465740561 CHVBK 20180323111807.0 cr unu---uuuuu 170327e19900701xx s 000 0 eng 10.1007/BF00047064 doi (NATIONALLICENCE)springer-10.1007/BF00047064 Behavior of indentation cracks near free surfaces and interfaces [Elektronische Daten] [T. Lardner, J. Ritter, M. Shiao, M. Lin] The purpose of this research was to examine problems associated with the propagation of cracks near a free surface and near the interface of a glass/epoxy bonded system. Crack propagation was induced by placing Knoop indentations in the glass at various sites adjacent to and remote from the surface or interface. These experimental studies were supplemented by finite element stress analysis. Experiments show that for an indent parallel to the surface or interface, the initial direction of crack propagation from the indent is always toward the surface or interface and then as the crack approaches the surface or interface, the crack path deviates away from the surface. Results of finite element analysis show that the initial direction of crack propagation is in the direction normal to the maximum principal stress at the crack tip. Kluwer Academic Publishers, 1990 Lardner T. Mechanical Engineering Department, University of Massachusetts, 01003, Amherst, MA, USA aut Ritter J. Mechanical Engineering Department, University of Massachusetts, 01003, Amherst, MA, USA aut Shiao M. Mechanical Engineering Department, University of Massachusetts, 01003, Amherst, MA, USA aut Lin M. Mechanical Engineering Department, University of Massachusetts, 01003, Amherst, MA, USA aut International Journal of Fracture Kluwer Academic Publishers 44/2(1990-07-01), 133-143 0376-9429 44:2<133 1990 44 10704 https://doi.org/10.1007/BF00047064 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00047064 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lardner T. Mechanical Engineering Department, University of Massachusetts, 01003, Amherst, MA, USA aut NATIONALLICENCE 700 1- Ritter J. Mechanical Engineering Department, University of Massachusetts, 01003, Amherst, MA, USA aut NATIONALLICENCE 700 1- Shiao M. Mechanical Engineering Department, University of Massachusetts, 01003, Amherst, MA, USA aut NATIONALLICENCE 700 1- Lin M. Mechanical Engineering Department, University of Massachusetts, 01003, Amherst, MA, USA aut NATIONALLICENCE 773 0- International Journal of Fracture Kluwer Academic Publishers 44/2(1990-07-01), 133-143 0376-9429 44:2<133 1990 44 10704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer