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Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002416
EISBN: 978-1-62708-193-1
... strength and tensile strength. The article reviews low velocity impacts in aircraft structures in terms of resin toughness, laminate thickness, specimen size and impactor mass, and post-impact fatigue. It explains the tension strength analysis, such as linear elastic fracture mechanics and R-curve methods...
Series: ASM Handbook Archive
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000608
EISBN: 978-1-62708-181-8
..., impact fracture, fatigue fracture surface, reversed torsional fatigue fracture, transgranular cleavage fracture, rotating bending fatigue, tension-overload fracture, torsion-overload fracture, slip band crack, crack growth and crack initiation, crack nucleation, microstructure, hydrogen embrittlement...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006990
EISBN: 978-1-62708-439-0
... by the microstructure but are also affected by porosity and surface roughness. Fatigue failure in AM materials is also influenced by porosity, surface roughness, microstructure, and residual stress due to applied manufacturing processing parameters. Post-processing treatments can further influence fatigue failure in AM...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003466
EISBN: 978-1-62708-195-5
... the load is applied perpendicular to the composite laminate and failure occurs in the plane of the reinforcement. Interlaminar fractures occur following mode I tension or fatigue loading, mode II shear or fatigue loading, flexural loading, and impact loading on the surface of the laminate. Interlaminar...
Series: ASM Handbook
Volume: 2B
Publisher: ASM International
Published: 15 June 2019
DOI: 10.31399/asm.hb.v02b.a0006587
EISBN: 978-1-62708-210-5
... (ksi) … 95 (14) Shear strength, MPa (ksi) … 180 (26) Fatigue strength at 5 × 10 8 cycles, R R Moore test, MPa (ksi) 75 (11) 62 (9) Impact strength, Charpy V-notch … 2.7 to 4.0 J (2 to 3 ft · lbf) (a) 30 days after casting. PM, permanent mold Fig. 1 C712.0-F, permanent...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002415
EISBN: 978-1-62708-193-1
... in.). Impactor R = 7.5 mm (0.3 in.). Sheet thickness t = 1.4 mm (0.055 in.). Strength reduction in fatigue of post-impact specimens is small, about 10%. In practice, crack extension is on the order of 5 mm combined with a decreasing crack growth rate and, in most cases, crack arrest. Repairability...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006428
EISBN: 978-1-62708-192-4
... for fretting, gross slip and impact conditions, typically used in turbine operating conditions The displacement refers to relative motion per cycle Displacement Nominal contact stress, MPa (ksi) Temperature, °C (°F) Typical material solutions and application methods Remarks Fretting—fatigue...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005293
EISBN: 978-1-62708-187-0
... processing can eliminate internal porosity in castings, thus providing significantly improved ductility, fatigue strength, and impact properties in most castings. If the pore fraction in a casting is high, HIP may also yield an increase in strength. At times, other factors, such as decreased inspection costs...
Series: ASM Handbook
Volume: 24A
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.hb.v24A.a0006985
EISBN: 978-1-62708-439-0
... of the common defects that occur in laser powder bed fusion (L-PBF) components, mitigation strategies, and their impact on fatigue failure. It summarizes the fatigue properties of three commonly studied structural alloys, namely aluminum alloy, titanium alloy, and nickel-base superalloy. additively...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006566
EISBN: 978-1-62708-290-7
..., particularly residual porosity, can have a significant impact on the fatigue and corrosion resistance of the as-built part. Fig. 1 Processing-structure-property relationships (Olson diagram) for conventional wrought 17-4 PH stainless steel Fig. 2 Processing-structure-property relationships...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 June 2024
DOI: 10.31399/asm.hb.v12.a0006878
EISBN: 978-1-62708-387-4
... Abstract This article presents the failure of polymer-matrix composites and the methodology for fractography. It provides a detailed discussion on the types of translaminar, interlaminar, and intralaminar failures. The article also presents a discussion on the types of fatigue failures...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005628
EISBN: 978-1-62708-174-0
... could be erroneous and misleading. Dynamic testing of spot welds generally refers to fatigue tests in practice. Impact testing, which has significant implication for the crash-worthiness of automobiles, is rarely conducted on spot welds because of the complexity and low repeatability involved...
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
... on the impact of corrosion-nucleated fatigue, particularly from pitting and exfoliation damage. Inputs required are a physical description of the corrosion morphology and, in cases where corrosion is still active, corrosion rates. In situations where the corrosion is still active during fatigue cycling...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003445
EISBN: 978-1-62708-195-5
..., the factored spectrum load approach is currently the only real option. Modifying the test results by analysis will not be feasible until an acceptable-damage rule for composite structure fatigue is developed. With the full-scale fatigue test, as with the static test, a post-test inspection of the test article...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0009211
EISBN: 978-1-62708-194-8
... defects had the most pronounced impact on reducing high-cycle fatigue life. In terms of fatigue crack growth performance, Greitemeir et al. ( Ref 22 ) concluded that porosity was not the dominant factor; rather, it was the alloy microstructure. Stated another way, they concluded that HIP closure...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003330
EISBN: 978-1-62708-176-4
.... It provides information on the specimen preparation, instrumentation, and procedures for various mechanical test methods of fiber-reinforced composites. These include the compression test, flexure test, shear test, open hole tension test, and compression after impact test. The article describes three distinct...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006811
EISBN: 978-1-62708-329-4
... and cons. In terms of suggesting design or manufacturing modifications, failure analysts and device designers must consider (and test) all potential device changes and their impact on performance. Fixing one issue could lead to other, bigger problems down the road. Often, due to mitigating factors (e.g...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009081
EISBN: 978-1-62708-177-1
.../002199838802200602 3. Delfone D. , Poursartip A. , Coxon B.R. , and Dost E.F. , Non-Penetrating Impact Behavior of CFRP at Low and Intermediate Velocities , Composites Materials: Fatigue and Fracture , Vol 5 , Martin R.H. , Ed., STP 1230, American Society for Testing...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
... factors that impact fatigue endurance. The HCF life is relatively sensitive to material defects, such as casting pores, inclusions, forging laps, and preexisting cracks, especially when they are present at the surface. Oxidation or corrosion not only can aid in HCF crack propagation but also can assist...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006112
EISBN: 978-1-62708-175-7
... that forged conventional elemental powder mixes result in poor mechanical properties, such as fatigue resistance, impact resistance, and ductility ( Ref 11 , 12 ). This is almost entirely due to chemical and metallurgical heterogeneity that exists in materials made using this method. To overcome this, very...