Results 81 to 90 of about 6,057 (299)

Plane-stress crack-tip fields for perfectly plastic orthotropic materials [PDF]

open access: yes, 1988
Plane stress mode I crack-tip fields for perfectly plastic orthotropic materials are studied. Plastic orthotropy is described by Hill's quadratic yield function.
Pan, Jwo
core   +1 more source

Advanced Electron Microscopy and Microcomputed Tomography Analysis of Single‐Crystal Ni‐Base Superalloys After Short‐Term Multiaxial Creep

open access: yesAdvanced Engineering Materials, EarlyView.
This work studies the anisotropic behavior of circular notched tensile specimens of Ni‐base superalloy single crystals during high‐temperature tensile creep along [001], [110], and [111]. Correlative scale‐bridging imaging of specimens reveals early rupture along [110] because 1) plastic deformation proceeds faster at notch center; 2) more (brittle ...
Leonardo Agudo Jácome   +6 more
wiley   +1 more source

Higher-order analysis of crack-tip fields in power-law hardening materials [PDF]

open access: yes, 1994
In this paper, we present an exact higher-order asymptotic analysis on the near-crack-tip fields in elastic-plastic materials under plane strain, Mode I. A four- or five-term asymptotic series of the solutions is derived.
XIA, L (reprint author), ACAD SINICA,INST MECH,LNM,BEIJING 100080,PEOPLES R CHINA.   +2 more
core  

Experimental analysis of crack tip fields in rubber materials by 3D Digital Image Method [PDF]

open access: yes, 2011
This paper presents the application of 3d digital image method to determine the crack tip fields in rubber materials. The in-plane displacement of crack-tip fields under Mode I loading is measured by using the digital moiré method and the out-of-plane ...
Yilan Kang   +5 more
core   +1 more source

High-Density Distributed Crack Tip Sensing System Using Dense Ultra-Short FBG Sensors

open access: yesSensors, 2019
Crack generation starts at the crack tip, which bears the highest stress concentration. Under further stress, the crack propagates and leads to severe structural damage.
Xin Gui   +6 more
doaj   +1 more source

Continuous Stiffness Graded Metal–Ceramic Femoral Stems: UMAT‐Based Design and Finite Element Assessment

open access: yesAdvanced Engineering Materials, EarlyView.
Functionally graded metal–ceramic femoral stems are engineered through continuous UMAT‐based stiffness tailoring, eliminating discrete material interfaces while enhancing biomechanical compatibility. Low‐index power‐law gradation optimizes load transfer, reduces stress shielding, and controls implant–bone micromotion, highlighting a materials‐design ...
Rihem Nouira, Sameh Elleuch, Hanen Jrad
wiley   +1 more source

Design and analysis of welded aircraft wing panels [PDF]

open access: yes, 2005
Nowadays, increasing manufacturing cost effectiveness becomes a vital condition for the commercial success of the next generation of large wide body aircrafts.
Theos, Athanasios
core  

Evolution of residual stress at a fatigue crack tip and its influence on crack tip shielding and plasticity

open access: yesJournal of Materials Research and Technology
The evolution of residual stresses (RS) at a crack tip and associated changes in crack shielding effects during fatigue crack growth (FCG) has a first order effect on the fatigue life of welded joints.
Zhe Zhang   +3 more
doaj   +1 more source

External and Internal Cracking Caused by Heat Treatment in Laser Powder Bed Fusion‐Fabricated Inconel 738LC Components

open access: yesAdvanced Engineering Materials, EarlyView.
Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara   +4 more
wiley   +1 more source

Modelling probabilistic fatigue crack propagation rates for a mild structural steel

open access: yesFracture and Structural Integrity, 2014
A class of fatigue crack growth models based on elastic–plastic stress–strain histories at the crack tip region and local strain-life damage models have been proposed in literature.
J.A.F.O. Correia   +2 more
doaj  

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