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Keywords: residual strength
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2002
ISBN-10: 0-8031-2893-2
ISBN: 978-0-8031-2893-4
... A key need for the commercial acceptance and viability of composite structural material systems is a methodology for reliability and lifetime predictions. In this paper, we present a philosophy in which the residual strength of the composite material is calculated as a function of applied...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2001
ISBN-10: 0-8031-2862-2
ISBN: 978-0-8031-2862-0
... formation, damage characterization, and residual strength and stability by combination of experiments and analysis. Studies showing that impact response type depends on impactor-plate mass ratio are presented. Small mass impact is generally more critical at a given configuration and energy. Analytical...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1999
ISBN-10: 0-8031-2493-7
ISBN: 978-0-8031-2493-6
... of test procedures to determine shear parameters. Some test procedures and test results are presented in this paper. Direct shear rock testing system cohesion friction dilation residual strength constant normal stiffness multiple failure shear test Manfred Bltimel t and Frederick A. Bezat2...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1999
ISBN-10: 0-8031-2486-4
ISBN: 978-0-8031-2486-8
... are compared to experimental data from an HSLA-80 center-cracked plate specimen and a full-scale I-beam specimen that featured over 150 mm of crack extension. ductile tearing finite-element high-toughness steel residual strength crack extension Michael L. Gentilcore~ and Richard H. Roberts2 A NEW...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1999
ISBN-10: 0-8031-2486-4
ISBN: 978-0-8031-2486-8
... the plastic zone reaches a free edge. In contrast, the residual strength of large specimens is achieved after some amount of crack growth with the plastic zone well-confined by the elastic region. Results of predicted residual strength are comparable to experimental measurements. However, as the width...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1998
ISBN-10: 0-8031-2609-3
ISBN: 978-0-8031-2609-1
...-impact residual strength capability was quite similar. The data indicate that significant strength losses can be expected at impact energies as low as 1.3 J (0.94 ft-lb). composites low-energy impact graphite/epoxy residual strength filament wound rocket motor case launch tube impact damage...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2411-2
ISBN: 978-0-8031-2411-0
... The primary objective of this study was to investigate the residual strength of ARALL-3 and GLARE-2 center-notched panels without stiffeners. The R -curve approach in linear elastic fracture mechanics (LEFM) was used for the residual strength predictions. The applicability of LEFM was verified...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1997
ISBN-10: 0-8031-2411-2
ISBN: 978-0-8031-2411-0
... on the surface quality of the composite. At low impact energies, little damage had been incurred by the composite and the residual strength and residual life was not greatly reduced as compared to an undamaged composite. At higher impact energies, more damage occurred and a greater effect of the impact damage...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1498-2
ISBN: 978-0-8031-1498-2
... was dominated by the 0° fibers. The stitched specimens had significantly lower static compressive strengths. A series of fatigue tests (tension-tension, compression-compression, and tension-compression) were conducted to study the influence of an open hole on damage and residual strength. These tests showed...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1993
ISBN-10: 0-8031-1498-2
ISBN: 978-0-8031-1498-2
... the baseline virgin tensile load-to-failure and damage patterns to a greater extent in the 1808 material than in the 985 material. composite material fatigue notch damage residual strength toughness interleaf R. E. Swain, 1 C. E. Bakis, 2 and Kenneth L. Reifsnider 3 Effect of Interleaves...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1435-4
ISBN: 978-0-8031-1435-7
... The breaking load test provides quantitative stress corrosion cracking data by determining the residual strength of tension specimens that have been exposed to corrosive environments. Eight laboratories have participated in a cooperative test program under the auspices of ASTM Committee G-1...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1435-4
ISBN: 978-0-8031-1435-7
... At Alcoa Laboratories the breaking load test was developed to provide a more discriminating accelerated laboratpry practice for rating stress corrosion cracking (SCC) performances of relatively resistant aluminum materials. The method involves residual strength measurements from tensile bar...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1444-3
ISBN: 978-0-8031-1444-9
... laminates creep creeprupture residual strength life prediction performance simulation Kenneth L. Reifsnider 1 Interpretation of Laboratory Test Information for Residual Strength and Life Prediction of Composite Systems REFERENCE: Reifsnider, K. L., "Interpretation of Laboratory Test Information...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8031-1419-2
ISBN: 978-0-8031-1419-7
... strength in terms of laminate properties, static influence coefficients, and impact energy. To determine residual compression strength, single- and multiple-impact damage was inflicted on bonded stiffened structures. The results were verified by the residual strength method, which uses laminate properties...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8031-1419-2
ISBN: 978-0-8031-1419-7
... is successfully predicted in a number of cross-ply laminates of the form (90 i /0 j ) ns and the quasi-isotropic laminate (90/+45/-45/0) s . The dependence of damage on load amplitude and specimen size is also well described. Residual strength is calculated as a function of damage dimensions for (90/0) s...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1991
ISBN-10: 0-8031-1419-2
ISBN: 978-0-8031-1419-7
... tensile strength. ARamid aluminum laminate metal matrix composite ARALL-2 impact damage temperature effects energy absorption matrix plasticity brittle fracture residual strength composite materials fracture fatigue (materials) Thomas C. L e e ~a n d Dale A. Wilson 2 An Investigation...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1287-4
ISBN: 978-0-8031-1287-2
... A study was conducted to examine the damage tolerance of composite laminates with impact damage. A model is presented to predict the residual strength of such laminates. The in-plane strain distribution near the region of damage is determined using Lekhnitskii's solution for an anisotropic...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1989
ISBN-10: 0-8031-1190-8
ISBN: 978-0-8031-1190-5
... fatigue tests is increased or by which the required residual strength has to be increased if preloading did not include environmental history. Preconditioned coupon specimens were subjected to accelerated quasirealistic mechanical and environmental flight-by-flight loading, and other coupon specimens...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1989
ISBN-10: 0-8031-1190-8
ISBN: 978-0-8031-1190-5
... resistance and residual strength after impact; (3) thermal fatigue; and (4) combined stress fatigue. Several examples are included to illustrate applications of the “theory” and to identify significant parameters and sensitivities. Comparisons with limited experimental data are made. fatigue fracture...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1989
ISBN-10: 0-8031-1190-8
ISBN: 978-0-8031-1190-5
... composites.Between the two epoxy-based systems, the toughened BMI composite exhibited much better impact resistance properties. thermoplastic composite brittle BMI toughened BMI impact damage delamination matrix cracks contact law residual strength Eugene Dan-Jumbo, 1Alan R. Leewood,2 and C. T. Sun 3...