Effect of strain isolator pad modulus on inplane strain in shuttle orbiter thermal protection system tiles
James Wayne Sawyer, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1983 - Science - 45 pages
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5.0 Distance analysis analyze the SIP/tile assumed thickness average modulus Bottom Top cross section densified and undensified densified LI-900 tile densified material Densifying the LI-900 Distance along tile effective modulus Failure strain Width figure 17 glass coating inplane failure strain inplane strain isolator pad SIP James Wayne Langley Research Center LI-900 tile material LI-900 tile specimens LI-900 TILES Test load-deflection curve loads and substructure Location of Modulus material properties modulus of elasticity Modulus ratio modulus values NASA neutral axis number plate number obtained plate number tile presented in reference shear and tensile shear modulus shown in figure silica SIP stiffness SIP/tile system SPECIMEN DIMENSIONS Specimen identifi specimen number plate Standard deviat stiffened SIP stiffer strain isolator pad stress-strain stress-strain curves substructure deformations tensile and shear Test beam test results test specimens Thermal Protection System tile/SIP interface tile/SIP system Top Bottom two-digit specimen number typical undensified specimens undensified tile