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Keywords: composite materials
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2022
ISBN: 978-0-8031-7721-5
... that have been further matured over the years into solutions for common aircraft design elements. By contrast, composite materials have published databases of properties for lamina or laminates that are tied to a single proprietary material formulation consolidated and cured/solidified under a single...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-3465-7
ISBN: 978-0-8031-3465-2
... affecting fracture toughness are identified, which significantly enhance the accuracy and productivity of experiments. Simulation results are compared with test data. composites composite materials energy release rate fracture toughness notched beam specimen computational simulation progressive...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-3465-7
ISBN: 978-0-8031-3465-2
... regarding the choice of the tab material. Failure modes of specimens where the tabs are bonded and where the tabs are molded directly on the test material were compared. Molded specimens produce better quality results. tensile test anisotropy tab composite materials failure strength Martin L...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2003
ISBN-10: 0-8031-3465-7
ISBN: 978-0-8031-3465-2
... Multilayered composite materials are being studied extensively for implementation in flywheel systems for the International Space Station (ISS). Rotor standard sections have been developed to determine damage tolerance levels of the multilayered composite materials in these flywheel systems...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2893-2
ISBN: 978-0-8031-2893-4
... tip debonding should be avoided for compressive strength testing. composite materials compression testing combined loading specimen optimization stress analysis Peter J. Joyce, J Melanie G Violette, 2 and Tess. J. Moon3 Finite ElementAnalysis of Unidirectional CompositeCompression Test...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2893-2
ISBN: 978-0-8031-2893-4
... allowables for notched and unnotched laminates where the test samples are historically small. In order to utilize the database, each company must demonstrate that their processing of the identical composite material results in mechanical properties that are the same as in the database. Equivalency tests...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2893-2
ISBN: 978-0-8031-2893-4
... were re-evaluated thermographically and then were cross-sectioned and photomicrographed. thermography composite materials microstructure James L. Walker, ~Samuel S. Russell, 1and Matthew D. Lansing2 Detection and Characterization of Imperfections in Composite Pressure Vessels Reference...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2862-2
ISBN: 978-0-8031-2862-0
... fiber composites composite materials composite structures damage assessment delamination growth impact damage impact resistance residual strength Robin Olsson, 1Leif E. Asp, 1SOren Nilsson, 2 and Anders Sj6gren t A Review of Some Key Developments in the Analysis of the Effects of Impact Upon...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2862-2
ISBN: 978-0-8031-2862-0
... efficient for large parametric studies, which may occur during preliminary design where multiple load combinations must be considered. composite materials delamination fracture mechanics energy release rate finite-element analysis virtual crack closure technique skin/flange interface Ronald...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2862-2
ISBN: 978-0-8031-2862-0
... investigation shows that the specimens did not buckle and that the mode of failure is a compressive material failure in the gage section of the tube. composite materials compression tubes experimental evaluation graphite-epoxy Ronald B. Bucinell 1 and Brian Roy 1 Development of a Test Method...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2865-7
ISBN: 978-0-8031-2865-1
..., the overall acceptable performance of the triaxial testing facility is believed to have been demonstrated. composite materials biaxial and triaxial testing thickness-tapered cruciform specimen failure envelope failure surface Jeffry S. W e l s h I and Donald F. A d a m s 2 Development of a True...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1999
ISBN-10: 0-8031-2486-4
ISBN: 978-0-8031-2486-8
... honeycomb sandwich composite materials durability damage tolerance Matthew Miller1, Antonio C. Rufin 1, Willard N. Westre 1, and Gopal Samavedam2 HIGH-SPEED CIVIL TRANSPORT HYBRID LAMINATE SANDWICH FUSELAGE PANEL TEST REFERENCE: Miller, M., Rufin, A. C., Westre, W. N., and Samavedam, G., "HighSpeed...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1998
ISBN-10: 0-8031-2609-3
ISBN: 978-0-8031-2609-1
... of the model to predict both the mean and variance of the delamination growth process in composite laminates subjected to cyclic loading. composite materials fatigue delamination experimental stochastic model Ronald B. Bucinell 1 Application of a Stochastic Model for Fatigue-Induced Delamination...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1998
ISBN-10: 0-8031-2609-3
ISBN: 978-0-8031-2609-1
... as represented by the maximum off-axis angle of the wavy fibers. Optical microscopy revealed that kink bands, leading to catastrophic failure, initiate at the most severe fiber misorientation sites in the wavy regions. composite materials in-plane fiber waviness layer waviness ply waviness finite...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1998
ISBN-10: 0-8031-2609-3
ISBN: 978-0-8031-2609-1
... cycles as well as delamination length as a function of the number of cycles. composite materials fatigue testing design bond strength skin/flange interface secondary bonding Michael K. Cvitkovich, 1 T. Kevin O'Brien, 2 and Pierre J. Minguet 3 Fatigue Debonding Characterization in Composite...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1998
ISBN-10: 0-8031-2609-3
ISBN: 978-0-8031-2609-1
... As composites are introduced into more complex structures with out-of-plane loadings, a better understanding is needed of the out-of-plane, matrix-dominated failure mechanisms. This work investigates the transverse tension fatigue characteristics of IM6/3501 composite materials. To test the 90...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2478-3
ISBN: 978-0-8031-2478-3
... for arbitrary material systems is described. composite materials delamination fracture mechanics double cantilever beam end-notched flexure single leg bending mixed mode bending Mode I Mode II mixed-mode crack tip element Barry D. Davidson, t Peter L. Fariello, 2 Ryan C. Hudson, 2...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2411-2
ISBN: 978-0-8031-2411-0
... reflector plate inspection in situ surface acoustic waves in situ longitudinal acoustic waves fatigue (materials) fracture (materials) composite materials Dianne Benson, t Prasanna Karpur, 1 David A. Stubbs, l and Theodore E. Matikas l Evaluation of Damage Evolution and Material Behavior in a Sigma...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2411-2
ISBN: 978-0-8031-2411-0
... approach to control the test and determine the experimental compliance calibration, overcomes the potential inaccuracies of the previously used beam theory expressions to determine compliance and to separate the modal values of G . fatigue (materials) fracture (materials) composite materials...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2411-2
ISBN: 978-0-8031-2411-0
... interfacial fracture mechanics mode mix virtual crack closure technique energy release rate fatigue (materials) fracture (materials) composite materials Jack L. Beuth 1 and Shri Hari Narayan 1 Separation of Crack Extension Modes in Composite Delamination Problems REFERENCE: Beuth, J. L. and Narayan...