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strength degradation model

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Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0009219
EISBN: 978-1-62708-176-4
... or strain levels are included. The article also summarizes the consolidation of fatigue data generated at different conditions. fatigue curve fatigue data analysis fatigue resistance fatigue strength strength degradation model FATIGUE DATA are subject to considerable scatter or variability...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003382
EISBN: 978-1-62708-195-5
... into MRLife, a composite analysis code that uses normalized strength relations for a given ply based on unidirectional static and fatigue properties. MRLife allows selection of failure criteria, strength degradation functions, and stiffness degradation functions. The strength-based residual strength model has...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003706
EISBN: 978-1-62708-182-5
... any or all of the degradation effects to vary as a function of time, so that the effects become functions of both cyclic stress and calendar time. The modeling procedure allows the analyst to control the amount and levels of influence of each effect, either independent of cyclic mechanisms...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003512
EISBN: 978-1-62708-180-1
... of the structure to be knowingly degraded below ultimate strength (1.5 × limit). The damage-tolerance evaluation is merely a means of providing an inspection program for a structure that is not expected to crack under normal circumstances, but may crack in service due to inadvertent circumstances. If cracks...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003457
EISBN: 978-1-62708-195-5
... lessons learned Degradation mechanism Most important variables Modeling approach Ways to accelerate tests Missing information Matrix cracking Processing parameters Temperature cycle range Static and fatigue loading Moisture/thermal cycle Number of cyclesPly thickness Residual stresses...
Book Chapter

By Bruce Craig
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003634
EISBN: 978-1-62708-182-5
... 7. Beachem C.D. , A New Model for Hydrogen Assisted Cracking (Hydrogen Embrittlement) , Metall. Trans. , Vol 3 , 1972 , p 437 8. Hirth J.P. , The Role of Hydrogen in Enhancing Plastic Instability and Degrading Fracture Toughness of Steels , Hydrogen Effects in Materials...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004146
EISBN: 978-1-62708-184-9
...-strength stainless steels. The secondary side corrosion in steam generator including denting, pitting, intergranular attack and IGSCC is also discussed. The article examines laboratory studies that have resulted in models and computer codes for evaluating and predicting intergranular corrosion...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003381
EISBN: 978-1-62708-195-5
... • Roy S. , Modeling of Anomalous Moisture Diffusion in Polymer Composites: A Finite Element Approach , J. Compos. Mater. , Vol 33 ( No. 14 ), 1999 , p 1318 – 1343 • Shimokawa T. , Hamaguchi Y. , and Katoh H. , Effect of Moisture Absorption on Hot/Wet Compressive Strength...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003631
EISBN: 978-1-62708-182-5
...-strength steel in distilled water ( Fig. 25 ), are characterized by high growth rates that depend on Δ K to a reduced power. Time-dependent corrosion fatigue crack growth occurs mainly above the threshold stress intensity for static load cracking and is modeled through linear superposition of SCC...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004147
EISBN: 978-1-62708-184-9
... – 210 13. Andresen P.L. and Ford F.P. , Modeling and Prediction of Irradiation Assisted Stress Corrosion Cracking , Proc. Seventh International Symposium on Environmental Degradation of Materials in Nuclear Power Systems—Water Reactors , NACE International , 1995 , p 893 – 908...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005676
EISBN: 978-1-62708-198-6
... and gamma radiation resistant, high stiffness 90–100 190–210 Polymethyl methacrylate PMMA ACRYLITE, CYROLITE Exceptional clarity, optical properties 105 220 Acrylonitrile butadiene styrene ABS Cycolac, Lustran, LG ABS Good stiffness, strength, impact, and chemical resistance 100–120 210...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002393
EISBN: 978-1-62708-193-1
... Damage Steering Committee Activity Airworthiness Limitations Repairs and Modifications Crack Growth Analysis Model Validation Fracture Toughness Data PSE Limiting Residual Strength Discrete Source Damage Residual Strength Analysis Validation Two-Bay Skin Crack Criterion...
Series: ASM Handbook
Volume: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006331
EISBN: 978-1-62708-179-5
... and dimensional changes than lamellar graphite iron, because it generally displays a greater volumetric contraction ( Ref 10 ). When the mold is heated, the binder starts to degrade, and the mold will lose tensile strength. In a green sand mold, the heat from the casting will vaporize the water that activates...
Book Chapter

Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003280
EISBN: 978-1-62708-176-4
.../viscoplastic dissipation. First, environmentally induced changes in viscoelastic plastic behavior would influence dissipation directly. Second, degradation of the thermodynamic work of adhesion and/or microstructural component of adhesion strength may result in lower dissipation contributions. Moisture...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004131
EISBN: 978-1-62708-184-9
...) Systems Equivalent Precrack Size Approach Life-Cycle Cost Modeling and Simulation Holistic Life-Prediction Methodology (HLPM) Corrosion usually plays the most important role in the degradation with time of structural components. Many types of corrosion can occur in military structures...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003440
EISBN: 978-1-62708-195-5
... is interlaminar or short beam shear tests. The specimens for these tests are easily fabricated, machined, conditioned, and tested. Although not as generally related to design properties, short beam strength tests are sensitive to matrix degradation and can be valuable indicators for material evaluation...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003060
EISBN: 978-1-62708-200-6
..., there is frequently a large scatter in the strength data. The first property manifests itself in that the material has a linear stress-strain relationship all the way from zero stress to failure. This linear relationship by itself is attractive to analysts because it makes the modeling process easier. However...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003571
EISBN: 978-1-62708-180-1
... interface temperature is high. An important application of thermosets in a tribological context is in brake pads where the base polymer is mixed with several additives for optimal friction, wear, and mechanical strength. Although friction models are available for interfacial sliding, theoretical wear...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006500
EISBN: 978-1-62708-207-5
... of the welding tool often produces additional heating, which degrades the strength of the joint. Alternatively, when the workpiece thickness drops below some critical value, there is insufficient compaction of the weld zone to form a sound weld, resulting in a weld defect. Because no workpiece material is added...