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Keywords: Fatigue
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Proceedings Papers

Proc. ASME. IMECE2023, Volume 11: Mechanics of Solids, Structures and Fluids, V011T12A020, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-109922
... the failure were identified: fatigue damage of the pinion bearing due to abnormal external load and the presence of brittle non-metallic inclusions, which initiated fatigue cracks leading to gear drop blocks. To improve gearbox reliability, suggestions were made to optimize operating conditions and improve...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 12: Micro- and Nano-Systems Engineering and Packaging, V012T13A029, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-113564
... behavior of AFSD-processed AISI 4340 steel parts under various tensile and fatigue loading conditions. A distinct scale of AISI 4340 steel specimens, namely the standard ASTM rectangular dog bone specimen is considered for the analysis. A finite element (FE) model is developed to predict the tensile...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 13: Research Posters; Safety Engineering, Risk and Reliability Analysis, V013T15A024, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-114109
... Abstract Traditionally, engineers have used empirical relationships such as the modified Goodman relation and the Basquin equation to design for fatigue and Miner’s Rule to calculate reliability and to predict the remaining useful life (RUL) of structures subjected to fatigue. Research has...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 1: Acoustics, Vibration, and Phononics, V001T01A011, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-111080
... Abstract In gas piping systems exposed to pressure drops, the high frequency generated by the flow could provoke acoustic induced vibration. Acoustic induced fatigue is a particular concern as it could lead to catastrophic failure of piping components in a significant short period of time...
Proceedings Papers

Proc. ASME. IMECE2022, Volume 2B: Advanced Manufacturing, V02BT02A047, October 30–November 3, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2022-94871
... internal flaws, resulting in lower than expected failure resistance or fatigue life. Multiple test bar batches using the Ti6Al4V alloy were fabricated by powder bed fusion (PBF) AM technique at different processing conditions. RUS and destructive tests, including tensile and fatigue tests, based on ASTM...
Proceedings Papers

Proc. ASME. IMECE2022, Volume 2B: Advanced Manufacturing, V02BT02A026, October 30–November 3, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2022-95441
... Methodology under varying operating conditions and then provides a comparison to the widely used NASA/IMS bearing run-to-failure dataset. Laboratory experiments utilized a bearing test stand to capture failure states for fatigue and contamination failure mode. The fatigue and contamination failure procession...
Proceedings Papers

Proc. ASME. IMECE2022, Volume 1: Acoustics, Vibration, and Phononics, V001T01A029, October 30–November 3, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2022-95222
... Abstract A fatigue test employing vibration-based fatigue known as the “Free-Free” has been in use inside the Turbine Engine Fatigue Facility (TEFF) of the Air Force Research Laboratory. The vibration-setup utilizes free boundary conditions by suspending a specimen on its nodal line that when...
Proceedings Papers

Proc. ASME. IMECE98, Mechanical Behavior of Advanced Materials, 51-66, November 15–20, 1998
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1998-1140
... Abstract A new multiparameter model is proposed for the characterization of fatigue crack growth. The model assesses the combined effects of identifiable multiple variables that can contribute to fatigue crack growth. Mathematical expressions are presented for the determination of fatigue crack...
Topics: Fatigue cracks
Proceedings Papers

Proc. ASME. IMECE2021, Volume 3: Advanced Materials: Design, Processing, Characterization, and Applications, V003T03A009, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-72865
... Abstract The fatigue characterization of additively manufactured Ti-6Al-4V plays a vital role in ensuring the structural safety. This study focuses on image based surface characterization and the fatigue mechanical property investigation of as-built additively manufactured Ti-6Al-4V. Three sets...
Proceedings Papers

Proc. ASME. IMECE2021, Volume 4: Advances in Aerospace Technology, V004T04A027, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-72061
... Abstract Additive manufacturing (AM) technologies are catching the interest day by day due to their ability to produce very complex shapes or geometries. Investigating the fracture and fatigue behavior of additively manufactured parts are essential not only to understand their mechanical...
Proceedings Papers

Proc. ASME. IMECE2021, Volume 4: Advances in Aerospace Technology, V004T04A013, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-73196
... in this paper. blended wing body (BWB) stress analysis finite element analysis fatigue crack growth damage tolerance Proceedings of the ASME 2021 International Mechanical Engineering Congress and Exposition IMECE2021 November 1-5, 2021, Virtual, Online IMECE2021-73196 Damage Tolerance Analysis...
Proceedings Papers

Proc. ASME. IMECE2021, Volume 4: Advances in Aerospace Technology, V004T04A026, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-72043
... Abstract The purpose of this study is to investigate the thermal and mechanical properties of L-PBF processed specimens at room and elevated temperatures while varying the loading conditions. The study covers finite element (FE) modeling of the tensile and fatigue behavior of the L-PBF...
Proceedings Papers

Proc. ASME. IMECE2021, Volume 12: Mechanics of Solids, Structures, and Fluids; Micro- and Nano- Systems Engineering and Packaging, V012T12A050, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-70637
... level efficiently while maintaining the same accuracy. The structure level model heritages the characteristic of the transportation model at the material level model and correlates the material degradation with structure-level mechanical loading such as fatigue damage. The model is validated by UV...
Proceedings Papers

Proc. ASME. IMECE2021, Volume 12: Mechanics of Solids, Structures, and Fluids; Micro- and Nano- Systems Engineering and Packaging, V012T12A035, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-71534
... of functional fatigue. The curves are indeed observed to shrink in an axisymmetric way, due to the lack of phenomena to shift the curves along any of the axis. loading surface NiTi triply periodic minimal surface TPMS cyclic loading fatigue Proceedings of the ASME 2021 International Mechanical...
Proceedings Papers

Proc. ASME. IMECE2021, Volume 12: Mechanics of Solids, Structures, and Fluids; Micro- and Nano- Systems Engineering and Packaging, V012T12A056, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-72196
... coupling are threaded together to connect the sucker rod and form the rod string. The sucker rod string acts as the connecting link between the surface pumping unit and the subsurface rod pump. The loads generated from the reciprocating upstroke and downstroke motions could impose a risk of fatigue failure...
Proceedings Papers

Proc. ASME. IMECE2021, Volume 2A: Advanced Manufacturing, V02AT02A038, November 1–5, 2021
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2021-71882
... Abstract This study investigates the application of electroless nickel deposition on additively manufactured stainless steel samples. Current additive manufacturing (AM) technologies produce metal components with a rough surface. Rough surfaces generally exhibit fatigue characteristics...
Proceedings Papers

Proc. ASME. IMECE2000, Manufacturing Engineering, 1037-1045, November 5–10, 2000
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2000-1912
... Abstract As part of an evaluation of plastic bead blasting as a means of removing paint from aircraft, fatigue testing was performed on bead blasted material. Typical military aircraft finishes were removed from 0.063 inch (1.6 mm) thick clad aluminum, corrosion resistant steel, and Ti-6Al-4V...
Proceedings Papers

Proc. ASME. IMECE2020, Volume 12: Mechanics of Solids, Structures, and Fluids, V012T12A048, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-24039
... Abstract To quantify the fatigue strength of bottom hole assembly (BHA) components used in high-bending drilling conditions, a multi-scale approach for fatigue analysis of BHAs was developed, which entails calculations at the BHA scale, the component scale, and the feature scale. At the BHA...
Proceedings Papers

Proc. ASME. IMECE2020, Volume 12: Mechanics of Solids, Structures, and Fluids, V012T12A049, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-24047
... Abstract In this paper, a hybrid computational framework that combines the state-of-the art machine learning algorithm (i.e., deep neural network) and nonlinear finite element analysis for efficient and accurate fatigue life prediction of rotary shouldered threaded connections is presented...
Proceedings Papers

Proc. ASME. IMECE2020, Volume 4: Advances in Aerospace Technology, V004T04A016, November 16–19, 2020
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2020-23672
... Abstract The tensile and fatigue properties of laser-powder-bed-fusion (L-PBF) processed Ti-6Al-4V specimens are investigated at different loading conditions. Two types of as-built and post-machined L-PBF processed dogbone specimens are considered for the study, one is an ASTME8M round specimen...