Results 31 to 40 of about 1,291,299 (286)

Investigation of Crack Propagation and Failure of Liquid-Filled Cylindrical Shells Damaged in High-Pressure Environments

open access: yesJournal of Marine Science and Engineering
Cylindrical shell structures have excellent structural properties and load-bearing capacities in fields such as aerospace, marine engineering, and nuclear power.
Hongshuo Zhang   +5 more
doaj   +1 more source

Small crack growth behavior in selective laser melted TC4 alloy

open access: yesCailiao gongcheng, 2023
The three-dimensional small crack growth behavior of selective laser melting (SLM) TC4 alloy was investigated by in-situ observation fatigue test method, and the long crack growth curve was measured by load reduction method under the same experimental ...
WU Liangliang, JIAO Zehui, YU Huichen
doaj   +1 more source

Micromechanisms of short fatigue crack growth in an Al-Si piston alloy [PDF]

open access: yes, 2014
The short fatigue crack growth behaviour of a model cast aluminium piston alloy has been investigated. This has been achieved using a combination of fatigue crack replication methods at various intervals during fatigue testing and post-mortem analysis of
T.O. Mbuya   +3 more
core   +1 more source

On the cyclic J-integral of a 3D semi elliptical surface crack [PDF]

open access: yes, 2014
This paper investigates an approach for calculating the cyclic J-Integral (ΔJ) through a new industrial application. A previously proposed method is investigated further with the extension of this technique through a new application of a practical 3D ...
Hughes, Martin   +5 more
core   +4 more sources

Some practical crack path examples [PDF]

open access: yesFracture and Structural Integrity, 2007
It is well known that many engineering structures and components, as well as consumer items, contain cracks or crack-like flaws. It is widely recognised that crack growth must be considered both in designand in the analysis of failures.
Les P. Pook
doaj  

On crack path stability in a layered material

open access: yes, 1997
Crack paths in an elastic layer on top of a substrate are considered. Crack growth is initiated from an edge crack in the layer. The plane of the initially straight crack forms an angle to the free surface.
Gunnars, J (reprint author), LULEA UNIV TECHNOL,DIV SOLID MECH,LULEA,SWEDEN.   +3 more
core   +1 more source

Fracture Characteristics of 3D-Printed Polymer Parts: Role of Manufacturing Process

open access: yesJournal of Manufacturing and Materials Processing
Using traditional methods to fabricate geometrically complicated items was challenging, but Additive Manufacturing (AM) has made it possible. Although AM (3D printing) was first developed to produce prototypes, in recent years it has also been utilized ...
Mohammad Reza Khosravani   +3 more
doaj   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

open access: yesFEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Crack Path Prediction in Anisotropic Brittle Materials [PDF]

open access: yesPhysical Review Letters, 2005
A force balance condition to predict quasistatic crack paths in anisotropic brittle materials is derived from an analysis of diffuse interface continuum models that describe both short-scale failure inside a microscopic process zone and macroscopic linear elasticity.
Hakim, Vincent, Karma, Alain
openaire   +3 more sources

Membrane composition and thermodynamic identity as boundaries of life for synthetic cell research

open access: yesFEBS Letters, EarlyView.
What makes a cell a cell? The boundary of a living cell is not just a wall. Read as a Markov blanket, the membrane separates internal from external states, generating identity and non‐equilibrium order. Can this identity be rebuilt from scratch in a synthetic cell?
Caterina Presutti, Bert Poolman
wiley   +1 more source

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