Tensile stress-strain behavior of boron/aluminum laminates
J. A. Sova, C. C. Poe, United States. National Aeronautics and Space Administration. Scientific and Technical Information Office
National Aeronoautics and Space Administration, Scientific and Technical Information Office, 1978 - Aluminum - 62 pages
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00 Figure aluminum Average Ramberg-Osgood curves Average Ramberg-Osgood equation average sheet thickness Average static Ramberg-Osgood axial stress boron boron/aluminum laminates byx nyx)-1 number calculated from laminate characterize the laminates curves O Average cycles of loading etu Ex Figure 15 iterative J. A. Sova lamina shear modulus laminate orientation laminate subjected laminate theory Langley Research Center linear-elastic linearly interpolating Load cell loading direction loading to failure longitudinal and transverse Longitudinal tests Specimen measured strains moduli and Poisson's NASA number MPa GPa nyx)-1 number MPa obtain average curves percentages of 45 permanent strain plies fail Poisson's ratio secondary modulus shear strains Sheet number Strain gage strain on unloading strengths predicted stress-strain data subjected to three Tangent moduli tensile stress-strain behavior tests Specimen Ftu three loading cycles transverse stress-strain curves Transverse tests Specimen types of boron/aluminum ultimate strength ultimate tensile strength varied linearly various laminates yield strength Young's modulus